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Downpipe & Catback along with your choice of exhaust tips and more!
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For 5 and 6 speed manual transmissions only
Choose your own configuration along with your choice of exhaust tips and more!
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For Sedan models only.
Control your exhaust valves with the click of a button! Includes a standalone vacuum pump, wiring, vacuum hose, and controllers.
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This product was last offered at the strikethrough price on
06-13-2026
Lifetime Replacement
Choose between a 2.5" or 3.0" valved mufflers to complete your custom exhaust.
10X Entries For Our 25th Anniversary Sweepstakes!
2.25" stainless steel with dual 100mm 'GT100' style polished exhaust tips
Lifetime Replacement
Includes the necessary hardware and gasket to install the manifold
10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
05-02-2026
Lifetime Replacement
complete drop-in upgrade will bolt up to stock/Stock Fit Turbo
This product was last offered at the strikethrough price on
06-28-2026
Lifetime Replacement
Add an aggressive exhaust note to your B6 S4 so you can hear that V8 roar!
10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
06-13-2026
Lifetime Replacement
For Manual Transmissions - Comes with cats and 2.5" cat back
Install new hardware with your new parts. M10x1.5
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We Price Match - Give Us A Call or Chat!
Secures the catalytic converter to the turbocharger
Lifetime Replacement
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
For Automatic Transmissions - Comes with cats and 2.5" cat back
Stainless steel resonated cat-back exhaust system with dual round, polished tips
This product was last offered at the strikethrough price on
05-02-2026
Replacement downpipe - To be used in various B6 A4 1.8T Milltek Exhaust Systems - SSXAU305, SSXAU033, SSXAU089, SSXAU510, SSXAU509, SSXAU304
Lifetime Replacement
Seamlessly fits in place of your restrictive stock cat - Features 3″ stainless steel piping, smooth mandrel bends, and two 02 sensor bungs
This product was last offered at the strikethrough price on
07-10-2026
Lifetime Replacement
Add an aggressive exhaust note to your B6 S4 so you can hear that V8 roar!
10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
06-13-2026
Lifetime Replacement
