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What's New

Clutch Master Cylinder for B6-B7 A4-S4-RS4 (Upgraded-Metal)

Carbon Cleaning Tool Kit (JHM) for ALL FSI, TSI and TFSI Direct Injection Engines

Exhaust - Cat-Back FULL - Stainless Steel, 2.5" (JHM-FI) for B8-S5 4.2L FSI (32v)


Introducing the JHM-FI B8-S5 4.2L FSI V8 *TRUE* Cat-Back Exhaust!!!

After months of development and testing on our in-house 2008 B8-S5, we are pleased to announce the release of our FULL Cat-Back Exhaust for the B8-S5 4.2L FSI V8 featuring mandrel bent, 2.5 inch stainless steel piping and our JHM Downpipes with X-pipe. Similar to the highly successful JHM-FI Cat-Back for the B6-B7 S4, we worked with Fast Intentions to develop this B8-S5 4.2L V8 Cat-Back, too. The result is another high-performance exhaust system that is essential to getting the most power out of your S5.

This is our JHM FULL Cat-Back Exhaust. This system will bolt right up to your OEM cat-pipes or JHM Test or Cat-Pipes and includes JHM Downpipes with our X-pipe, along with the center exhaust section (resonated or non-resonated), and finally the rear muffler sections featuring quad-tip outlets.

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Audi Exhaust - Cat-Back PARTIAL - Stainless Steel, 2.5 for B8-S6

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Audi Exhaust - Cat-Back PARTIAL - Stainless Steel, 2.5 for B8-S5

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Audi Exhaust - Cat-Back PARTIAL - Stainless Steel, 2.5 for B8-S5

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Audi Exhaust - Cat-Back FULL - Stainless Steel, 2.5 for B8-S5

This exhaust system was featured on our car during the record setting quarter mile passes of our in-house B8-S5:

Here's a video with a sampling of audio clips for the Full Cat-Back on an S5 with our 2.5" Downpipes:

Here is another video highlighting the sound of our Cat-Back featuring our in-house B8-S5 making some launches at the track and during normal driving:


There is a lot of confusion surrounding the B8 S4-S5 Exhaust System Setup mostly due to the current "brand-x" systems available on the market. The B8 Exhaust can be split up into 5 parts. Starting from the outlet at the cylinder head you have the exhaust manifolds, the cat or test-pipes, the downpipes (this includes the x-pipe on the JHM B8-S5 Full Exhaust System), and the remaining portion that includes the mufflers that exit at the rear of the car (sometimes this entire section is called the cat-back). See below for a diagram of the JHM B8 S4-S5 Exhaust System:

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Audi Exhaust - Cat-Back PARTIAL - Stainless Steel, 2.5 for B8-S5

FITMENT: Fits all 2008 to 2013 B8-S5s with the 4.2L FSI V8 (32v).

- RESONATORS: Select your choice of resonated versus non-resonated exhaust from the dropdown menu below. Adding resonators to your cat-back exhaust will take the edge off any "raspiness" that an otherwise un-resonated system would have.

Comes with all hardware needed for a complete installation:

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Audi Exhaust - Cat-Back FULL - Stainless Steel, 2.5 for B8-S5

NOTE ON BUILD TIME: This exhaust system is made to order and has a lead time of about 4 to 6 weeks.

For shipping quotes: Please sign in or join then put the items you want in your shopping cart and proceed to checkout.

Note: JHM works hard to make all fitment charts as accurate as possible please read the product description to make sure this is correct for your vehicle.
Make Model - Chassis Engine
AudiS5 - B8-B8.5 (2008-2017)4.2l V8 32v FSI

Available Options:
Exhaust Tip Finish:
Current Reviews: 1
This product was added to our catalog on Monday 01 December, 2014.

JHM Tuning-Flashing Cable for JHM ECU Tuning

Exhaust - Race Pipes - (VERSION 2) Stainless Steel, 2.5" (JHM) for B8-S5 4.2L FSI (32v)

Cabin/Pollen Filter (Charcoal) for C5 all and B6/B7 all

Oil Change Kit (JHM) Motul Specific (5w40) for B7 RS4, R8, Q7, C6 A6, D3-D4 A8, B8 S5-RS5, Touareg w V8 and R8, C6 S6, D3 S8 w V10

O2, Oxygen Sensor (Bosch-OEM) Rear, Driver or Passenger Side for B7-RS4, B8-S5 w/ 4.2L V8 FSI

Spark plug (NGK) Laser Platinum, Tri-electrode (OEM) for VW Touareg, C6 A6, D3-D4 A8, Q7, B8 S5 w 4.2L V8 and S6 S8 5.2L V10

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Copyright © 2017 JH Motorsports

JH Motorsports is not affiliated with or endorsed by Audi AG, Audi of America, Volkswagen AG, or Volkswagen of American or any other car company mentioned or whose logos are displayed in these web pages or our store. Audi®, Quattro®, Avant®, A4®, S4®, A6®, RS4®, RS6®, Allroad®, TT®, and Tiptronic® are trademarks of Audi AG. Volkswagen®, VW®, Golf®, Jetta®, Passat® and Beetle® are trademarks of Volkswagen AG. While we try to keep everything current, JH Motorsports is not responsible for errors in pricing on this web site. All prices are in US Dollars.

Some of these modifications and or parts are intended for off-road use only and may violate Federal or your State emissions standards. Also, end user assumes all risk with product performance and installation. JH Motorsports is not responsible for any bodily or mechanical harm, etc. as a result of use or misuse of any products.