Audi B9 S5 Quattro 3.0T Sportback
ECS evolutionary design and manufacturing, blending with raw emotion, desire and passion, creating a truly unique driving experience
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CTS Turbo high flow cat is made to maximize exhaust flow for highest power gains - Do not compromise performance and sound with factory parts - Unleash your B9 S4/S5 3.0T Potential!
This product was last offered at the strikethrough price on
09-29-2026
Lifetime Replacement
Features TIG welded brushed T304 stainless steel construction and offers gains of 10 AWHP and 12 AWFT-LBS of torque
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Unleash a throaty growl under hard acceleration!
2X Entries Into Our F80 M3 Sweepstakes
Lifetime Replacement
No cutting required, easy-to-install downpipes with resonator deletes for your factory cat back exhaust.
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This product was last offered at the strikethrough price on
06-13-2026
Lifetime Replacement
Control your exhaust valves with the click of a button! Includes a standalone vacuum pump, wiring, vacuum hose, and controllers.
10X Entries Into Our F80 M3 Sweepstakes
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This product was last offered at the strikethrough price on
06-13-2026
Lifetime Replacement
Unleash the sound your 3.0T was meant to have!
Lifetime Replacement
Choose between a 2.5" or 3.0" valved mufflers to complete your custom exhaust.
10X Entries Into Our F80 M3 Sweepstakes
Check-Engine Light free! An emissions-friendly approach to exhaust upgrades!
Lifetime Replacement
Featuring HJS Tuning 200cpsi ECE-approved sports cat - Fits with OE and Milltek cat-back systems.
This product was last offered at the strikethrough price on
08-17-2026
Lifetime Replacement
Equipped with the same precision-engineering as its Touring Edition counterpart, minus the resonators up front and 180 Technology® resonators in the rear.
2X Entries Into Our F80 M3 Sweepstakes
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
Aggressive sound, quality finish, reliable operation, straightforward install, and affordable fun.
Lifetime Replacement
Comes complete with non-resonated downpipes, a precision-engineered x-pipe mid-section, and two valved muffler sections.
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2.50" stainless steel with quad GT-90 titanium tips
Fits models without factory rear sports differential
This product was last offered at the strikethrough price on
08-17-2026
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
