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Audi B9 S4 Quattro 3.0T Performance Engine Parts

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ES#4715588 - 01-839-02087-8 - Weistec Audi / Porsche VAG EA839 3.0T W.3 Turbo Upgrade - 100% Bolt-on installation / Upgrade. You are required to ship Weistec your OE turbochargers as a core. - Weistec - Audi Porsche

100% Bolt-on installation / Upgrade. You are required to ship Weistec your OE turbochargers as a core. You are required to ship Weistec your OE turbochargers as a core.

Brand:
Weistec - Corporate Logo
ES#:
4715588
Mfg#:
01-839-02087-8
Ships in 1 Business Day
$2199.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Sport Cat-Pipe with 200 CPSI Catalytic Converter - Increase power, reduce weight, and improve sound!

Brand:
Armytrix - Corporate Logo
ES#:
4164584
Mfg#:
AU94S-CD
Ships on Nov 23, 2026
$2618.00 USD
Free Shipping

Replaces the failure-prone factory diaphragm for rock-solid boost control

Brand:
Racingline - Corporate Logo
ES#:
5456834
Mfg#:
VWR144002
Ships on Nov 23, 2026
$440.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Engages water-methanol system at 35PSI Adjustable from 25-50psi

Brand:
SnowPerformance - Corporate Logo
ES#:
2826280
Mfg#:
81081
Ships in 2 Business Days
$74.99 USD
Free Shipping
on orders $49 and up

Stainless steel non-resonated cat-back exhaust system with quad round, polished tips - Includes downpipes with high flow secondary cats

Brand:
Supersprint - Corporate Logo
ES#:
4017779
Mfg#:
777532KT
Ships on Feb 5, 2027
$11742.00 USD
Free Shipping

***Please see photos and description prior to ordering, all sales final.*** Wirelessly connect your JB4 to your phone! ALL SALES FINAL. ITEMS MAY BE DAMAGED OR MISSING COMPONENTS. PLEASE SEE IMAGES BEFORE PURCHASING. Want To Haggle? Give Us A Call Or Chat To Make An Offer On This Product!

Brand:
Scratch & Dent - Corporate Logo
ES#:
5529294
Mfg#:
JB4-SPWCK-FSD6
Ships in 1 Business Day
Limited Qty Sale
$158.99

This product was last offered at the strikethrough price on
10-30-2026

$110.99 USD
Free Shipping
on orders $49 and up

Replace both charge pipes

Brand:
Genuine Volkswagen Audi - Corporate Logo
ES#:
4708250
Mfg#:
8W0145738CKT
Ships in 1 day
$558.99

This product was last offered at the strikethrough price on
08-31-2026

$528.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pair this with the Integrated Engineering or 034 Motorsports stage 3 tune for 600+hp! Custom tuning software required for installation.

Brand:
The Turbo Engineers - Corporate Logo
ES#:
4751302
Mfg#:
TTE10494.1
Ships on Nov 18, 2026
$3492.99 USD
Free Shipping
on orders $49 and up

Quick connect union T-fitting for 1/4" Nylon

Brand:
SnowPerformance - Corporate Logo
ES#:
2826282
Mfg#:
82040
Special Order: No Guaranteed ETA
$23.99 USD
Free Shipping
on orders $49 and up

Improves throttle response, and peak power while adding a glorious and aggressive tone under the hood.

Brand:
MST Performance - Corporate Logo
ES#:
4440482
Mfg#:
AD-A406
Special Order: No Guaranteed ETA
$426.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4877045 - 034-106-A002/3 - FP34 Fuel Pump Surge Tank - Designed for Bosch 044 Fuel Pump - 034Motorsport - Audi Volkswagen

Designed for Bosch 044 Fuel Pump 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4877045
Mfg#:
034-106-A002/3
Back Ordered
$351.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4017775 - 777512KT -   Supersprint Cat-Back Exhaust System - Non-Resonated  - Stainless steel non-resonated cat-back exhaust system with quad round, polished tips - Includes secondary cat delete downpipes - Supersprint - Audi

Stainless steel non-resonated cat-back exhaust system with quad round, polished tips - Includes secondary cat delete downpipes

Brand:
Supersprint - Corporate Logo
ES#:
4017775
Mfg#:
777512KT
Back Ordered
$7659.99 USD
Free Shipping

More About Performance Engine Parts

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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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