Awe Tuning 3025-42480 Awe Switchpath Catback Exhaust For Bmw Owner's Manual

3025-42480 AWE SwitchPath Catback Exhaust for BMW

AWE Exhaust System for BMW G8X M3/M4

The AWE Exhaust System for BMW G8X M3/M4 is a high-performance
exhaust system that delivers industry-leading performance. The
system is available in four different variants – two with
SwitchPath Catback Exhaust and two with Track Edition Catback
Exhaust. Each variant is available with either Diamond Black Tips
or Chrome Silver Tips. Additionally, the system comes with a
Non-Resonated Performance Mid Pipe that enhances the performance of
the exhaust system.

Product Variants

Installation Instructions

It is recommended that the installation of the AWE Exhaust
System for BMW G8X M3/M4 be performed by an experienced
professional with the necessary equipment and know-how to
effectively complete the install.

The installation instructions for the system are provided in the
user manual and are divided into multiple sections based on the
type of installation required:

• Performance MidPipe Installation
• AWE Catback Installation
• AWE Track Rear Installation
• AWE Switchpath Rear Installation

Before beginning the installation, it is important to inspect
all parts of the system. If any part is found to be damaged or
missing, please contact the place of purchase immediately.

Part List

The AWE Exhaust System for BMW G8X M3/M4 includes the following
parts:

Note: The above information is subject to change. For up-to-date
fitment information and part list, please visit the product page on
AWE-Tuning.com.

For up-to-date fitment information, please visit the product page on AWE-Tuning.com.

3025-42480 3025-43480 3020-42482 3020-43482 3820-11489

AWE SwitchPath Catback Exhaust for BMW G8X M3/M4 – Diamond Black Tips AWE SwitchPath Catback Exhaust for BMW G8X M3/M4 – Chrome Silver Tips AWE Track Edition Catback Exhaust for BMW G8X M3/M4 – Diamond Black Tips AWE Track Edition Catback Exhaust for BMW G8X M3/M4 – Chrome Silver Tips AWE Non-Resonated Performance Mid Pipe for BMW G8X M3/M4

Welcome to the AWE family, and congratulations on your purchase of the AWE Exhaust System for the BMW G8X M3/ M4.
Exquisite build quality and craftsmanship, coupled with industry leading performance, distinguish this exhaust system from all others.
*For up to the minute fitment information, be sure to visit the AWE website. As always, AWE Performance Specialists are standing by for any questions, right here.
Table of Contents: Performance MidPipe Installation……5 AWE Catback Installation……………8 AWE Track Rear Installation……….14 AWE Switchpath Rear Installation…19
Copyright 2021, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.1

Inspect ALL parts prior to disassembly of vehicle; If damaged or MISSING, please contact the place of purchase immediately.
PRO-TIP: Installation of any exhaust should be performed by an experienced professional with the necessary equipment and know-how to effectively complete the install.

Symbol

Part Number E54 E55

Description BMW G8X M3-M4 Non Res Performance Midpipe Driver BMW G8X M3-M4 Non Res Performance Midpipe Passenger

QTY 1 1

Copyright 2020, AWE. No part of this document may be reused or dupCliocpayteridghwtit2h0o2u2t,thAeWeEx.pNreosspapretromf itshsisiodnoocfuAmWenEt/SmeacyorbeLtrde.uAslel drigohrtdsurpelsicearvteedd.wRitehvo1u.t1the express permission of AWE. All rights reserved. Rev 1.2

Inspect ALL parts prior to disassembly of vehicle; If damaged or MISSING, please contact the place of purchase immediately.
PRO-TIP: Installation of any exhaust should be performed by an experienced professional with the necessary equipment and know-how to effectively complete the install.

Symbol

Part Number E56 E57 E58 E59 E60 E61 E62
1325-11029 SEC75 180300
180275 3910-41010 3910-11034
180015 180014

Description BMW G8X M3-M4 Ball Adapter DS/PS BMW G8X M3-M4 X Pipe BMW G8X M3-M4 Axle Tube Driver BMW G8X M3-M4 Axle Tube Passenger BMW G8X M3-M4 Switchpath Valve Section Driver BMW G8X M3-M4 Switchpath Valve Section Passenger BMW G8X M3-M4 Switchpath Chamber Assembly Wire Harness Extension 3″ Barrel Clamp (Bubble) AWE Band Clamp 3″
AWE Band Clamp 2.75″ Hardware Kit for Integrated Clamp Style Exhaust Tips 3/8″ CLAMP-KIT AWE 4.5″ Slash Cut Diamond Black Tip AWE 4.5″ Slash Cut Chrome Silver Tip

QTY 2 1 1 1 1 1 1 2 2 6
2 1 1 4 4

Copyright 20210, AWE. No part of this document may be reused or duplicated without the express permission of AWE./SAellcroigr hLttsd.reAslel rivgehdts. Rreesver1v.1ed. Rev1.1

Inspect ALL parts prior to disassembly of vehicle; If damaged or MISSING, please contact the place of purchase immediately.
PRO-TIP: Installation of any exhaust should be performed by an experienced professional with the necessary equipment and know-how to effectively complete the install.

Symbol

Part Number E56 E57 E58 E59 E63 E64
150004 9830A457
SEC75 180300
180275 3910-41010 3910-11034
7130K59 180015 180014

Description BMW G8X M3-M4 Ball Adapter DS/PS BMW G8X M3-M4 X Pipe BMW G8X M3-M4 Axle Tube Driver BMW G8X M3-M4 Axle Tube Passenger BMW G8X M3-M4 Track Section Driver BMW G8X M3-M4 Track Section Passenger SBS Valve Motor Simulator 416 Stainless Steel Dowel Pins, 7/64″ Diameter, 1″ Long 3″ Barrel Clamp (Bubble) AWE Band Clamp 3″
AWE Band Clamp 2.75″ Hardware Kit for Integrated Clamp Style Exhaust Tips 3/8″ CLAMP-KIT 7.5″ Zip Tie AWE 4.5″ Slash Cut Diamond Black Tip AWE 4.5″ Slash Cut Chrome Silver Tip

QTY 2 1 1 1 1 1 2 2 2 4
2 1 1 4 4 4

Copyright 2022, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.2

NOTE: Always refer to the manufacturer’s service manual for precise torque specifications on all OEM fasteners. CAUTION: The exhaust may be VERY HOT — allow adequate time for the system to cool down before disassembly. Severe burns and injury will occur if skin comes into contact with a hot exhaust system.
If you are NOT installing AWE performance midpipes skip to step 6.
To start you will measure your cut points. The driver’s side cut point is 60mm forward of the hanger bar bracket behind the catalytic converter, as shown in Figure 1-1. The passenger side cut point is 108mm behind the mounting bracket on the rear of the catalytic converter, as shown in Figure 1-2.
These measurements are crucial to the installation of the AWE performance mid pipes. Ensure they are correct before cutting the OE system

FORWARD

FORWARD

DRIVER SIDE

PASSENGER SIDE

After ensuring that your measurements are correct, cut the OE tubes. Note: It is crucial that these cuts are accurate. Incorrect cuts will affect fitment.
Make sure that the cuts are perpendicular to the tube you are cutting. Note: The system can be cut out of the car, but measurements must be taken and marked while the system is in the car.
Copyright 2021, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.1

Soak all bolts and rubber hangers in penetrating oil before starting any work. 1. To begin you will need to remove the OE chassis brace, shown at (A). 2. Place a pole jack on the resonator and rear muffler, as shown at (B). 3. Slide the rubber hangers off of the hanger bar, as shown at (C). 4. Unbolt the OE hangers, shown at (D). This will allow you to fully remove the factory system. 5. Disconnect the OE valves (E) from their harnesses. 6. Remove the OE exhaust system. 7. Re-round and debur the OE tubes at the cut points.
Note: The OE hangers and hardware will be reused. Make sure to keep the hangers separated as they will need to go back into their original locations.
Copyright 2022, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.2

Install your driver side AWE non-resonated performance mid-pipe (E54), first slide a provided 3″ clamp over the expanded side of the tube. Bottom the slip fit out on the backside of the OE catalytic converter, as shown in Figure 4-1. Then re-install the OE hanger by first sliding the rubber hanger onto the bar (A), before re-installing the factory bolt as shown at (B) in Figure 4-2. Ensure the hanger bar is parallel to the ground. Note: The provided clamps can be found packed with your AWE catback system.
Install your passenger side AWE non resonated performance mid-pipe (E55), first slide a provided 3″ clamp over the expanded side of the tube. Bottom the slip fit out on the backside of the OE catalytic converter, as shown in Figure 5-1. Next rotate passenger side AWE non resonated mid-pipe (E55) so it is parallel with the driver’s side (E54), as shown in Figure 5-2.
Copyright 2021, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.1

AWE CATBACK INSTALL STARTS HERE To start you will measure your cut points. The cut points will be between 185mm and 190mm forward of the second resonator (smooth face) for the driver, and passenger side tubes, as shown in Figure 3.
It is crucial that you measure the same distance on each tube. Different measurements on each tube will effect fitment.
FORWARD
After ensuring that your measurements are correct, cut the OE tubes. Note: It is crucial that these cuts are accurate, and perpendicular to the tube you are cutting. Incorrect cuts will affect fitment. Note: The system can be cut out of the car, but measurements must be taken and marked while the system is in the car.
Copyright 2022, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.2

Soak all bolts and rubber hangers in penetrating oil before starting any work. 1. To begin you will need to remove the OE chassis brace, shown at (A). 2. Place a pole jack on the resonator and rear muffler, as shown at (B). 3. Slide the rubber hangers off of the hanger bar, as shown at (C). 4. Unbolt the OE hangers, shown at (D). This will allow you to fully remove the factory system. 5. Disconnect the OE valves (E) from their harnesses. 6. Remove the OE exhaust system. 7. Re-round and debur the OE tubes at the cut points.
Note: The OE hangers and hardware will be reused. Make sure to keep the hangers separated as they will need to go back into their original locations.
Copyright 2021, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.1

Install you 2 AWE ball socket adapters (E56) onto the cut ends of the OE system, as shown in Figure 9. Do this by sliding the provided 2.75″ clamps on to the ball socket adapters, bottom the slip fit out, and tighten the clamps. Note: The AWE ball socket adapters should sit flush with each other when installed correctly. Note: Skip this step IF you have installed AWE performance midpipes.
Slide a provided 3″ barrel clamp over each flared end of your AWE X-pipe (E57) and install it onto the ball socket adapters, as shown in Figure 10. Snug the clamps, but do not fully tighten them at this time.
Copyright 2022, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.2

When you snug the clamps on your AWE ball socket adapters/midpipes, and your AWE X-pipe, it is important to have the drivers side clamps at the rotation shown in Figure 11-1 and the passenger side clamps at the rotation shown in Figure 11-2. This rotation will ensure proper fitment when the chassis brace is re-installed.
Reinstall the OE hanger located near the differential, as shown in Figure 12. Repeat this for the other side of the car.
Copyright 2021, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.1

Install your AWE passenger side axle tube (E59) by sliding a provided 3″ band clamp over the expanded end. Slide the hanger bar into the OE rubber hanger (A), then bottom the slip fit out on the AWE X-pipe (E57), as shown in Figure 13. Snug the clamp on the slip fit, but do not fully tighten at this time.
Install your AWE driver side axle tube (E58) by sliding a provided 3″ band clamp over the expanded end. Slide the hanger bar into the OE rubber hanger (A), then bottom the slip fit out on the AWE X-pipe (E57), as shown in Figure 14. Snug the clamp on the slip fit, but do not fully tighten at this time.
Copyright 2022, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.2

It is crucial to install each section and exhaust band clamps correctly to prevent loose joints, exhaust leaks and rattles. Arrow A shows the expanded pipe and the preinstalled exhaust clamp being brought up to the corresponding pipe. Arrow B shows the overlapping pipe installed correctly over the corresponding pipe. Arrow C shows the exhaust band clamp being brought to the edge of the expanded pipe.
NOTES: · Do not fully torque any exhaust
clamp until the entire exhaust has been installed and adjusted. · Torque specification is a minimum of 60 ft/lbs
TRACK SYSTEM INSTALLATION: SKIP TO STEP 16
SWITCHPATH SYSTEM INSTALLATION: SKIP TO STEP 27
Copyright 2021, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.1

STEPS 16­26 ARE FOR TRACK SYSTEMS ONLY
Install your AWE passenger side track section (E64). First bolt the OE rubber hanger back into place, as shown at (A) in Figure 16. Then slide a provided 3″ band clamp over the expanded end of your AWE track section (E64). Next slide the hanger bar into the OE rubber hanger, as shown at (B) in Figure 16. Now bottom out the slip fit on the AWE passenger axle tube (E59). Snug the clamp down on the slip fit, but do not tighten fully at this time.
Install your AWE passenger side track section (E63). First bolt the OE rubber hanger back into place, as shown at (A) in Figure 16. Then slide a provided 3″ band clamp over the expanded end of your AWE track section (E63). Next slide the hanger bar into the OE rubber hanger, as shown at (B) in Figure 17. Now bottom out the slip fit on the AWE passenger axle tube (E58). Snug the clamp down on the slip fit, but do not tighten fully at this time.
Copyright 2022, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.2

Remove the OE valves from the OE exhaust system. Note: Keep drivers side and passenger side separated. It is important to install the valves on their original sides of the car. Next gather your valve motor simulators (A) and your dowel pins (B). Place the dowel pin in the cut out on the backet shown in Figure 18.
To ensure you have the valve simulator aligned correctly, flip it over and verify that the dowel is resting in the cut out of the valve motor pin, as shown in Figure 19.
Copyright 2021, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.1

Using the OE hardware that was removed earlier, secure the valve motor to the AWE valve simulator bracket, as shown in Figure 20.
Using the provided cable ties, secure the valve motor simulator bracket (A) to the subframe above the AWE driver side axle tube (E58), as shown in Figure 21. Note: Use 2 cable ties per valve simulator Repeat this process for the passenger side.
Install all 4 AWE exhaust tips onto the tip outlets with the provided hardware, as shown in Figure 22. Note: When installing tips be careful not to scratch the rear valance
Copyright 2022, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.2

To install the exhaust tips with integrated clamps, first, attach the exhaust tip in the proper orientation onto the exhaust outlet tube. Insert one of the carriage bolts from the hardware kit (3910-41010) through the tab on the exhaust tip and thread on one of the corresponding nuts. Using anti-seize on the bolt threads will help installation and prevent breakage of hardware.
If exhaust system only has 2 exhaust tips while the integrated clamp kit has enough hardware for our 4 tip exhaust systems. You will have 2 sets of hardware left over that will not be used.
Install a provided lock collar on the outside of the driver side rubber gromet, as shown at (A) in Figure 24. Repeat on the passenger side.
Copyright 2021, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.1

Re-install the OE chassis brace (A) using the OE hardware, as shown in Figure 25.
Make your final adjustments to the tips to ensure they are in a position you like. Once the desired positioning is achieved work from the front of the car to the back, tightening all the clamps fully and ensuring there is proper clearance of the chassis, and braces. It is now recommended to drive the car to allow the exhaust to heat cycle after all clamps and tips are fully tightened.
At this point the exhaust will be very hot, allow to cool before work continues. Check the tips for correct alignment, adjust as needed. Don’t forget to see the next page for any troubleshooting needs!
Copyright 2022, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.2

STEPS 27­ 38 ARE FOR SWITCHPATH SYSTEMS ONLY Remove the OE hardware (A) that secures the heat shield on one side of the car, as shown in Figure 27-1 Connect your AWE extension harness to the driver side OE plug (B) as shown in Figure 272 Tuck your AWE wiring harness extension above the heat shield as shown in Figure 27-3. Repeat for the opposite side of the vehicle.
Copyright 2021, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.1

Install the provided valve spring (A) into your AWE Switchpath passenger valve section (E61), as shown in Figure 28-1. Next use the provided hardware to install the OE valve motor (B), as shown in Figure 28-2. Last check to make sure the valve motor and spring are sitting, as shown at (C) in Figure 283. Note: Remove the OE valve motors from your OE system. Do not flip the driver and passenger side valves. They must be installed on their original sides. Note: The provided spring must be used or the valves may not function correctly.
Repeat this process for your AWE valve section on the driver side
Copyright 2022, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.2

Install your AWE Switchpath valve sections (E60/E61) by sliding a clamp over the expanded slip fit and then bottom out the slip fit on the AWE Switchpath Chamber Assembly (E62), as shown in Figure 29. Snug the clamps on both sides once the slip fits are installed. Do not fully tighten the clamps at this time.
Slide the OE rubber hanger grommets onto the hanger bars on each side of the AWE Switchpath Valve Sections. Note: Make sure to install the OE rubber gromets on the side which they originally came off of.
Copyright 2021, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.1

Install the entire AWE Switchpath rear assembly onto the AWE axle tubes (E58/E59), as shown in Figure 31. First slide a provided clamp over the axle tubes. Then line up the assembly with the axle tubes, and bottom out the slip fits on the tubes. Note: It is recommended to have another person help to lift the rear assembly into place.
Re-secure the OE rubber hanger using the OE hardware as shown at (A) in Figure 32. Repeat this for the opposite side.
Plug your AWE wiring harness extension into the valve as shown at (A) Figure 33. Repeat this for the opposite side.
Copyright 2022, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.2

Install all 4 AWE exhaust tips onto the tip outlets with the provided hardware, as shown in Figure 34. Note: When installing tips be careful not to scratch the rear valance
To install the exhaust tips with integrated clamps, first, attach the exhaust tip in the proper orientation onto the exhaust outlet tube. Insert one of the carriage bolts from the hardware kit (3910-41010) through the tab on the exhaust tip and thread on one of the corresponding nuts. Using anti-seize on the bolt threads will help installation and prevent breakage of hardware.
If exhaust system only has 2 exhaust tips while the integrated clamp kit has enough hardware for our 4 tip exhaust systems. You will have 2 sets of hardware left over that will not be used.
Install a provided lock collar, on the outside of the driver side rubber gromet, as shown at (A) in Figure 36. Repeat on the passenger side.
Copyright 2021, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.1

Re-install the OE chassis brace (A) using the OE hardware, as shown in Figure 37.
Make your final adjustments to the tips to ensure they are in a position you like. Once the desired positioning is achieved work from the front of the car to the back, tightening all the clamps fully and ensuring there is proper clearance of the chassis, and braces. It is now recommended to drive the car to allow the exhaust to heat cycle after all clamps and tips are fully tightened.
At this point the exhaust will be very hot, allow to cool before work continues. Check the tips for correct alignment, adjust as needed. Don’t forget to see the next page for any troubleshooting needs!
Copyright 2022, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.2

Issue Exhaust is not fitting correctly

Solution
Most fitment issues are due to improperly adjusted exhaust. This includes tip fitments and rattling due to chassis contact. Check out our fitment guide for more installation tips.

Incorrect or missing parts

Double check the parts list for your system and compare them with what you received. Fill out our contact form, found below and let us know what parts you need.

Once installed properly, your AWE exhaust will provide years of trouble-free performance.
The exhaust volume and sound will settle with usage; 800-1000 miles is required to break-in new exhaust systems.
Also, please note that the rear 180Technology® resonator has a small drain hole to allow condensation to escape. Water drops from this area are normal.
Periodic cleaning of exhaust tips is necessary to maintain proper finish, especially in areas prone to road salt and caustic deicing solutions. Use a mild soap and water solution or car wax to clean the finish. Avoid using abrasive polishes, as they can scratch the finish.

Any questions or comments, please do not hesitate to contact us:

AWE CONTACT FORM

Up-to-date warranty information is found HERE.

Copyright 2021, AWE. No part of this document may be reused or duplicated without the express permission of AWE. All rights reserved. Rev 1.1

References

• AWE
• AWE
• Contact - AWE
• Frequently Asked Questions - AWE
• AWE SUPPORT, RETURNS AND ISSUE RESOLUTION - AWE
• Warranty, return, cancellation policies - AWE