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Looking for aftermarket parts to modify or upgrade your 2017 Audi S3 with catback? At Tunersports.com we carry a huge selection of the top name brand performance catback parts and accessories for your S3.
Whether you have a 2017 Audi S3 in Premium Plus to Prestige trim we have you covered. We have 13 catback available parts to mod your S3. All parts have free shipping to the Continental US 48 States.
 IN STOCK - DROPSHIPS 49-36442-BThis MACH Force-Xp exhaust system is constructed of mandrel-bent stainless steel tubing for maximum strength and durability. Featuring a high-flow stainless steel muffler that produces a deepened tone, this system is guaranteed to gain attention. Due to the state-of-the-art computer-aided technology... aFe MACHForce XP 3in-2.5in 304SS Exhaust Cat-Back 15-20 Audi S3 L4-2.0L (t) - Black Tips 2015-2019 Audi S3 Prestige 2015-2020 Audi S3 Premium Plus $1,301.85 SALE |
 OUT OF STOCK 49-36442-CThis MACH Force-Xp exhaust system is constructed of mandrel-bent stainless steel tubing for maximum strength and durability. Featuring a high-flow stainless steel muffler that produces a deepened tone, this system is guaranteed to gain attention. Due to the state-of-the-art computer-aided technology... aFe MACHForce XP 3in-2.5in 304SS Exhaust Cat-Back 15-20 Audi S3 L4-2.0L (t) - Carbon Tips 2015-2019 Audi S3 Prestige 2015-2020 Audi S3 Premium Plus $1,301.85 SALE |
 IN STOCK - DROPSHIPS 49-36442-PThis MACH Force-Xp exhaust system is constructed of mandrel-bent stainless steel tubing for maximum strength and durability. Featuring a high-flow stainless steel muffler that produces a deepened tone, this system is guaranteed to gain attention. Due to the state-of-the-art computer-aided technology... aFe MACHForce XP 3in-2.5in 304SS Exhaust Cat-Back 15-20 Audi S3 L4-2.0L (t) - Polished Tips 2015-2019 Audi S3 Prestige 2015-2020 Audi S3 Premium Plus $1,239.98 SALE |
 IN STOCK - LOW 3025-42068AWE Tuning Audi 8V S3 SwitchPath Exhaust w/Chrome Silver Tips 102mm 2015-2019 Audi S3 Prestige 2015-2020 Audi S3 Premium Plus $2,095.00 |
 IN STOCK 3025-43072AWE Tuning Audi 8V S3 SwitchPath Exhaust w/Diamond Black Tips 102mm 2015-2019 Audi S3 Prestige 2015-2020 Audi S3 Premium Plus $2,195.00 |
 IN STOCK 3015-42142AWE Tuning Audi 8V S3 Track Edition Exhaust w/Chrome Silver Tips 102mm 2015-2019 Audi S3 Prestige 2015-2020 Audi S3 Premium Plus $1,295.00 |
 IN STOCK 3015-43150AWE Tuning Audi 8V S3 Track Edition Exhaust w/Diamond Black Tips 102mm 2015-2019 Audi S3 Prestige 2015-2020 Audi S3 Premium Plus $1,395.00 |
 IN STOCK 3820-11050AWE Tuning Audi 8V S3 SwitchPath-to-Track Conversion Kit 2015-2019 Audi S3 Prestige 2015-2020 Audi S3 Premium Plus $195.00 |
 OUT OF STOCK 3825-11030AWE Tuning Audi 8V S3 Track-to-SwitchPath Exhaust Conversion Kit 2015-2019 Audi S3 Prestige 2015-2020 Audi S3 Premium Plus $995.00 |
 IN STOCK 140631Borla Cat-Back And Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla Sound of Power respected by motoring enthusiasts everywhere.... Borla 13-15 Audi S3 S-Type Dual Round Rolled Catback Exhaust 2015-2019 Audi S3 Prestige 2015-2020 Audi S3 Premium Plus $1,940.99 |
 IN STOCK S4601304The Audi S3 Cat Back performance exhaust system is one to be reckoned with.... MBRP 15-18 Audi S3 304SS 3in Quad Split Rear Exit C/B System 2015-2019 Audi S3 Prestige 2015-2020 Audi S3 Premium Plus $832.99 |
 IN STOCK S46013CFThe Audi S3 Cat Back performance exhaust system is one to be reckoned with.... MBRP 15-18 Audi S3 SS 3in Quad Split Rear Exit w/ Carbon Fiber Tips - T304 2015-2019 Audi S3 Prestige 2015-2020 Audi S3 Premium Plus $930.74 |
 IN STOCK S46043CFMBRP Exhaust Pro Series, Cat-Back System with Carbon Fiber Tips.... MBRP 15-20 Audi S3 T304 Stainless Steel Cat - Active 2015-2019 Audi S3 Prestige 2015-2020 Audi S3 Premium Plus $1,249.49 |