Audi B9 S4 Quattro 3.0T Performance Engine Parts

Engineered for seamless integration within the engine bay and improves the performance, look and sound of your vehicle.

Brand:

ES#:

4362353

Mfg#:

UH017-INA

$1469.99 USD

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Lifetime Replacement

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

Brand:

ES#:

5457434

Mfg#:

UVM76MMTSTYLEX1

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

Brand:

ES#:

5457436

Mfg#:

UVM.76MM.X2

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

Brand:

ES#:

5457432

Mfg#:

UVM76MMDUALOUTX1

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

Brand:

ES#:

5457437

Mfg#:

UVM.89MM.X1

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

Brand:

ES#:

5457424

Mfg#:

UVM63MMDUALOUTX2

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

Brand:

ES#:

5457435

Mfg#:

UVM.76MM.X1

Pro-Series 18.8 stud bolts.

Brand:

ES#:

4871996

Mfg#:

P201050810.BR

$299.00 USD

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on orders $49 and up

Lifetime Replacement

Complete Bolt-On System, Compatible with stock & modified applications, and all hardware & gaskets included!

Brand:

ES#:

4715348

Mfg#:

01-839-02150-9

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:

ES#:

4715588

Mfg#:

01-839-02087-8

$2199.00 USD

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Lifetime Replacement

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

Brand:

ES#:

4164584

Mfg#:

AU94S-CD

Great for when more fuel is needed in a custom fueling application 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:

ES#:

5481885

Mfg#:

F90000274BKT

$177.99 USD

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Free Shipping

on orders $49 and up

Partial Replacement

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

Brand:

ES#:

5456834

Mfg#:

VWR144002

$440.99 USD

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Lifetime Replacement

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

Brand:

ES#:

2826280

Mfg#:

81081

Includes 2.5 gallon tank, red high temp nylon tubing, and quick-connect fittings

Brand:

ES#:

4415298

Mfg#:

SN0-211

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

Brand:

ES#:

4017779

Mfg#:

777532KT