BMW Catback Exhaust Systems for BMW F82 M4 S55 3.0L

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Catback Exhaust systems are designed to completely replace everything from your cats all the way back to your exhaust tips. Traditionally, if you are planning on upgrading your entire exhaust system, you will also need headers and downpipes.
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Active Autowerke Signature Performance Exhaust System - Brushed Silver Tips - F80/2/3 M3/M4
Active Autowerke Signature Performance Exhaust System - Brushed Silve...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Active Autowerke - Corporate Logo
T#:397486
Part#: 11-045
Ships in 3 Business Days
$ 3,563.00 USD
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$ 3,563.00 USD
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The Active Autowerke F8X rear exhaust was carefully engineered to eliminate the unflattering sound of the factory M3 and M4 exhaust, while also allowing for optimum flow and resonance. Every effort was made in addressing the not so appeasing sound of the stock OEM exhaust, but in designing an exhaust worthy for an "M" car. We believe our rear exhaust combined with our mid-pipe offers the deepest sound and best performance of any other system on the market today. Available for both models, this axle-back exhaust gives your BMW the deep, throaty, growl a car of its caliber should have had from the factory!
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XForce - Varex Cat Back System - F80 M3 F82 M4
XForce - Varex Cat Back System - F80 M3 F82 M4
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
XForce - Corporate Logo
T#:26171599
Part#: ESBMF80VKCS
Ships in 1 Business Day
Sale - Save 10% $ 2,999.00

This product was last offered at the strikethrough price on
06-30-2026

$ 2,699.10 USD
Add to Wish List
Sale - Save 10%
$ 2,999.00

This product was last offered at the strikethrough price on
06-30-2026

$ 2,699.10 USD
Add to Wish List

Enhance Your BMW F80 M3 or F82 M4 Experience

Upgrade your BMW F80 M3 or F82 M4 with our VAREX Valve-equipped exhaust system, featuring twin-turbo S55 engine. Crafted from high-quality 304 stainless steel, this system boasts a symphonic performance with its dual 2.5? mandrel bent equal length pipe work and quad 4? tip outlets. Not only does it enhance the sound of your M, but it also adds a sleek look to match its performance. Ideal for passionate drivers, this exhaust offers user-adjustable sound control, providing a personalized driving experience like no other.

  • Dual 2.5? mandrel bent equal length pipe work
  • 304 stainless steel brushed finish
  • Twin hot dog resonator centre section
  • Dual 2.5? OEM inlet to dual 3? pipework with V-Band flanged clamping system for ease of installation and future serviceability
  • Single East-West dual 3? inlet VAREX? muffler
  • Quad 3? outlet with polished double wall angle 4? tips with bolt-on installation
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Active Autowerke Signature Performance Exhaust System - Matte Black Tips - F80/2/3 M3/M4
Active Autowerke Signature Performance Exhaust System - Matte Black T...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Active Autowerke - Corporate Logo
T#:590346
Part#: 11-045MB
Ships in 3 Business Days
$ 3,629.00 USD
Free Shipping
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$ 3,629.00 USD
Free Shipping
Add to Wish List
Active Autowerke is proud to announce the release of the Signature F8X M3/M4 Exhaust System. This system is the result of countless hours of R&D to obtain the perfect combination of performance and sound. Constructed of 100% 304 TIG welded stainless steel, Active Autowerke has created a modular exhaust system that will provide enough flow to support power levels way above the stock S55. The stock S55 Midpipe is a dual-pipe system from each turbo that leads to the rear muffler. The resulting sound is far from pleasant, and without any real scavenging effect the turbo lag is fairly pronounced. By converting to a single 3.5" pipe directly after the downpipes, AA's system promotes exhaust scavenging along with higher exhaust velocity to produce a quicker spool, more power, and a much smoother exhaust note.
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