This system will increase power, reduce weight, and provide a legendary exhaust note!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Requires a S4 Style Quad diffuser on non-S-line rear bumper or an S4 rear diffuser on S-line rear bumper.
Gains up to +10 horsepower with an additional +13 ft lbs of torque with a legendary exhaust note!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Gains up to +11 horsepower with an additional +19 ft lbs of torque with a legendary exhaust note!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Will require use of the TTS Quad Exit rear diffuser
Gains up to +11 horsepower with an additional +19 ft lbs of torque with a legendary exhaust note!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Will require use of the TTS Quad Exit rear diffuser
Gains up to +11 horsepower with an additional +19 ft lbs of torque with a legendary exhaust note!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Will require use of the TTS Quad Exit rear diffuser
Gains of up to +14.2 horsepower with an additional +22 Nm of torque with a legendary exhaust note!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Gains up to +11 horsepower with an additional +19 ft lbs of torque with a legendary exhaust note!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Will require use of the TTS Quad Exit rear diffuser
Gains up to +11 horsepower with an additional +19 ft lbs of torque with a legendary exhaust note!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Will require use of the TTS Quad Exit rear diffuser
This valved cat back system features wireless remote control and quad chrome silver tips - This system will increase power, reduce weight, and provide a legendary exhaust note!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms *Must be used with quad tip rear diffuser from Audi S7 - 4K8807521DRU6*
Restore fuel mileage and clear codes
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat! For cylinders 1-3
Brand:
ES#:
2550380
Mfg#:
13944
In Stock at Vendor
$248.99
This product was last offered at the strikethrough price on 05-07-2026
Located before catalytic converter, restore mileage and clear codes
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat! For cylinders 4-5
Brand:
ES#:
4069829
Mfg#:
1K0998262P
In Stock at Vendor
$200.99
This product was last offered at the strikethrough price on 05-07-2026
Ensure a proper seal on your exhaust manifold
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms We Price Match - Give Us A Call or Chat!
Made in the USA! 100% Bolt On Installation. Simple DIY installation; no cutting or welding required
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
From stock exhaust system repairs to polished stainless steel performance exhaust, we have exhaust pipes, mufflers, resonators, and catalytic converters from the most respected suppliers in the business. Go loud, stay soft, look good with exhaust parts and systems from ECS Tuning.
