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!
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!
Unleash a throaty growl under hard acceleration!
2X Entries Into Our F80 M3 Sweepstakes
Features TIG welded brushed T304 stainless steel construction and offers gains of 10 AWHP and 12 AWFT-LBS of torque
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MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
04-22-2026
No cutting required, easy-to-install downpipes with resonator deletes for your factory cat back exhaust.
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
06-13-2026
Unleash the sound your 3.0T was meant to have!
Aggressive sound, quality finish, reliable operation, straightforward install, and affordable fun.
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ECS evolutionary design and manufacturing, blending with raw emotion, desire and passion, creating a truly unique driving experience
10X Entries Into Our F80 M3 Sweepstakes
Fits up to 2022 model years
Check-Engine Light free! An emissions-friendly approach to exhaust upgrades!
Buy Integrated Engineering Software from 9/3/26 - 9/30/26 for a chance to win your Software for FREE!
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
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
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
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
2.50" stainless steel with your choice of tip style
2.50" stainless steel with quad Cerakote black velvet oval tips. No physical or functional flaws with the system or missing components, simply open box
Fits models with factory rear sports differential
This product was last offered at the strikethrough price on
08-29-2026
2.50" stainless steel with quad GT-100 Cerakote black tips
Fits models with factory rear sports differential
This product was last offered at the strikethrough price on
08-29-2026
2.50" stainless steel with quad GT-100 Cerakote black tips
Fits models without factory rear sports differential
For vehicles without a sport differential
This product was last offered at the strikethrough price on
08-17-2026