Change the tone of your 3.0T exhaust with easy-to-install downpipes that mate to your factory cat-back exhaust.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4376068
Mfg#:
012616LA01KT
Ships in 1 Business Day
ON SALE!
SAVE 25%
$599.99
This product was last offered at the strikethrough price on 05-02-2026
NEW UPDATED DESIGN! True 3.5″ intake for maximum airflow - 3.5" mandrel bent piping with huge 6″ velocity stack air filter!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Void-free and fluid-free, eliminating the slop associated with the factory mounts
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Delivers improved power, sound, and acceleration to Audi B9/B9.5 S4/S5 owners within a clean, cost-effective package.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Increase horsepower and eliminate heatsoak - Drop-in intercooler requires no cutting, trimming, or mods!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
60A Durometer solid rubber that eliminates the soft and leak prone factory engine mounts.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4736298
Mfg#:
039803LA01KT
In Stock
ON SALE!
SAVE 15%
$529.99
This product was last offered at the strikethrough price on 05-02-2026
Pair this with the Integrated Engineering or 034 Motorsports stage 3 tune for 600+hp!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Custom tuning software required for installation.
ECS evolutionary design and manufacturing, blending with raw emotion, desire and passion, creating a truly unique driving experience
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Tuning your vehicle with APR Software has never been easier thanks to the APR Ultralink!
Call In Or Chat For Best Price! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes! Only available for purchase in the United States and Canada.
Reduce restrictions and increase cooling! Whether you call it an intercooler, a heat exchanger, a radiator, or something else - this is the product for you.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Fits B8.5 Facelift Models
Brand:
ES#:
3569215
Mfg#:
025496ECS01KT
In Stock
ON SALE!
SAVE 16%
$889.99
This product was last offered at the strikethrough price on 05-02-2026
Features a gauge pod controller, which allows for the best control and visibility. 7-color OLED displays boost, percentage of flow, low level, and even faults.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms Gauge Pod controller, for optimum control even from the driver's seat!
Features resonators larger than the stock units in order to produce a more mellow sound volume.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand:
ES#:
4043933
Mfg#:
3215-11030
In Stock
15% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$1229.99
This product was last offered at the strikethrough price on 06-07-2026
Change the tone of your 3.0T exhaust with easy-to-install downpipes that mate to your factory cat-back exhaust.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4714616
Mfg#:
012616LA01-01KT
In Stock
ON SALE!
$549.99
This product was last offered at the strikethrough price on 05-02-2026
Void-free and fluid-free, eliminating the slop associated with the factory mounts
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Up to 19hp & 21ft-lbs over stock!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 5X Entries For Our 25th Anniversary Sweepstakes!
Our name says it all. That's why ECS Tuning is dedicated to providing our customers with the broadest possible assortment of engine tuning options at a range of prices and options to fit any budget. Start small and grow your car into something special with performance engine upgrades from a company that has tuning in its name and its blood.
Lifetime Replacement
