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Audi B5 A4 FWD 1.8T

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Audi B5 A4 FWD 1.8T Performance Parts & Upgrades

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Mahle Performance Piston Set

ES#2794055 - H18TAUD287209I12 - Mahle Performance Piston Set - Includes rings, wire locks, and wrist pins - 81.5mm bore, 8.5:1 CR, 86.4mm stroke (stock) - Mahle - Audi Volkswagen

Includes rings, wire locks, and wrist pins - 81.5mm bore, 8.5:1 CR, 86.4mm stroke (stock) *For use with 20mm wrist pin connecting rods*

Brand:
Mahle - Corporate Logo
ES#:
2794055
Mfg#:
H18TAUD287209I12
Back Ordered
$955.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ST X Performance Coilover System - Fixed Damping

ES#4056518 - 13210038 - ST X Performance Coilover System - Fixed Damping - Average lowering of 1.6'' to 2.75'' front and 1.6'' to 2.75'' rear. - Suspension Techniques - Audi

Average lowering of 1.6'' to 2.75'' front and 1.6'' to 2.75'' rear. From VIN 8D-X-200001, split is in the 1999 model year

Brand:
Suspension Techniques - Corporate Logo
ES#:
4056518
Mfg#:
13210038
Back Ordered
$1089.00 USD
Free Shipping

ST X Performance Coilover System - Fixed Damping

ES#4056516 - 13210037 - ST X Performance Coilover System - Fixed Damping - Average lowering of 1.6'' to 2.75'' front and 1.6'' to 2.75'' rear - Suspension Techniques - Audi

Average lowering of 1.6'' to 2.75'' front and 1.6'' to 2.75'' rear Up to VIN 8D-X-199999, split is in the 1999 model year

Brand:
Suspension Techniques - Corporate Logo
ES#:
4056516
Mfg#:
13210037
Back Ordered
$1089.00 USD
Free Shipping

Supertech Performance Valvetrain Upgrade Kit

This high-performance engine kit combines an upgraded dual-spring valvetrain, Inconel and nitrided valves, a top-end gasket set, and premium tri-metal race main bearings. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
5481342
Mfg#:
SPRK-AUDI18VKT
Back Ordered
$1702.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bilstein B12 Pro-Kit Suspension System

Expertly matched performance Eibach Pro-line lowering springs and Bilstein shock/strut package for a dramatic increase in performance handling. World-famous Bilstein quality with a limited lifetime warranty! 10X Entries Into Our F80 M3 Sweepstakes
2X Entries For Our Spin To Win Sweepstakes!
For avant models only.

Brand:
Bilstein - Corporate Logo
ES#:
2983881
Mfg#:
46-189257
Back Ordered
$899.00 USD
Free Shipping

Bilstein B12 Pro-Kit Suspension System

Expertly matched performance Eibach Pro-line lowering springs and Bilstein shock/strut package for a dramatic increase in performance handling. World-famous Bilstein quality with a limited lifetime warranty! 10X Entries Into Our F80 M3 Sweepstakes
2X Entries For Our Spin To Win Sweepstakes!

Brand:
Bilstein - Corporate Logo
ES#:
2983877
Mfg#:
46-189189
Back Ordered
$834.00 USD
Free Shipping

Complete Universal Turner Baffled Oil Catch Can Kit - 10oz

ES#3458268 - 022798tms01-09KT - Complete Universal Turner Baffled Oil Catch Can Kit - 10oz - A 4 chamber, baffled oil catch can complete with a universal mount and drain system! - Turner Motorsport - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

A 4 chamber, baffled oil catch can complete with a universal mount and drain system! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
3458268
Mfg#:
022798TMS01-09KT
In Stock
ON SALE! SAVE 15%
$305.99

This product was last offered at the strikethrough price on
06-13-2026

$260.09 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS UNIVERSAL Swivel Exhaust Tips - 3.5" Chrome - Pair

ES#2986534 - 006555ecs04a01KT - ECS UNIVERSAL Swivel Exhaust Tips - 3.5" Chrome - Pair - Stainless Steel exhaust tips featuring swivel attachments for maximum adjustability. 2.5" Swivel Inlet / 3.5" Double Wall, Slant Cut Outlet - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Stainless Steel exhaust tips featuring swivel attachments for maximum adjustability. 2.5" Swivel Inlet / 3.5" Double Wall, Slant Cut Outlet 10X Entries Into Our F80 M3 Sweepstakes
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
ECS - Corporate Logo
ES#:
2986534
Mfg#:
006555ECS04A01KT
In Stock
ON SALE! SAVE 15%
$155.99

This product was last offered at the strikethrough price on
06-13-2026

$132.58 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

340lph High Flow In-Tank Fuel Pump (e85 Compatible)

ES#3691421 - 50-1200 - 340lph High Flow In-Tank Fuel Pump (e85 Compatible) - AEM?s 340LPH E85-Compatible High Flow In-Tank Fuel Pumps feature robust internal construction that is designed to withstand the low lubricity characteristics of ethanol and methanol fuels - AEM Electronics - Audi Volkswagen

AEM?s 340LPH E85-Compatible High Flow In-Tank Fuel Pumps feature robust internal construction that is designed to withstand the low lubricity characteristics of ethanol and methanol fuels This is a general-use high flow fuel pump, not a direct plug-and-play swap in most application

Brand:
AEM Electronics - Corporate Logo
ES#:
3691421
Mfg#:
50-1200
In Stock
11% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$175.95

This product was last offered at the strikethrough price on
09-12-2026

$155.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RBF 600 Racing Brake Fluid - 500mL

ES#261392 - 8069HC - RBF 600 Racing Brake Fluid - 500mL - Boiling point - Dry 312C (594F) / Wet 216C (421F) - Motul - Audi BMW Volkswagen MINI

Boiling point - Dry 312C (594F) / Wet 216C (421F)

Brand:
Motul - Corporate Logo
ES#:
261392
Mfg#:
8069HC
In Stock
10% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$26.20

This product was last offered at the strikethrough price on
09-12-2026

$23.58 USD
Free Shipping
on orders $49 and up

Remote Vacuum Exhaust Valve Control Kit

ES#4883843 - 004788LA01 - Remote Vacuum Exhaust Valve Control Kit - Control your exhaust valves with the click of a button! Includes a standalone vacuum pump, wiring, vacuum hose, and controllers. - ECS - Audi BMW Volkswagen Mercedes Benz MINI

Control your exhaust valves with the click of a button! Includes a standalone vacuum pump, wiring, vacuum hose, and controllers. 10X Entries Into Our F80 M3 Sweepstakes
10X Entries For Our Spin To Win Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4883843
Mfg#:
004788LA01
In Stock
ON SALE! SAVE 10%
$100.99

This product was last offered at the strikethrough price on
06-13-2026

$90.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal ECS Tuning Baffled Oil Catch Can Kit (8oz)

ES#4040043 - 003779ecs05-01KT - Universal ECS Tuning Baffled Oil Catch Can Kit (8oz) - Capture harmful oil vapors and keep your intake tract clean. Includes our universal catch can, brackets, fittings and drain kit. Everything you need except plumbing to your engine. - ECS - Audi Volkswagen

Capture harmful oil vapors and keep your intake tract clean. Includes our universal catch can, brackets, fittings and drain kit. Everything you need except plumbing to your engine. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4040043
Mfg#:
003779ECS05-01KT
In Stock
ON SALE! SAVE 15%
$417.99

This product was last offered at the strikethrough price on
06-13-2026

$355.29 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS UNIVERSAL Swivel Exhaust Tip - 4.0" Black Chrome - Priced Each

ES#2918636 - 003358ECS03A02 - ECS UNIVERSAL Swivel Exhaust Tip - 4.0" Black Chrome - Priced Each - Stainless Steel exhaust tip featuring swivel attachment for maximum adjustability. 2.5" Swivel Inlet / 4.0" Double Wall, Slant Cut Outlet - ECS - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Stainless Steel exhaust tip featuring swivel attachment for maximum adjustability. 2.5" Swivel Inlet / 4.0" Double Wall, Slant Cut Outlet 10X Entries Into Our F80 M3 Sweepstakes
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
ECS - Corporate Logo
ES#:
2918636
Mfg#:
003358ECS03A02
In Stock
ON SALE!
$113.99

This product was last offered at the strikethrough price on
06-13-2026

$110.57 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.

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