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Audi TT MKI Quattro 225HP

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Audi TT MKI Quattro 225HP Engine Parts & Accessories

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Billet Diverter Valve - Black

ES#3183557 - 034-145-5000-BLK - Billet Diverter Valve - Black - High-performance spring and piston design is both durable and a performer! - 034Motorsport - Audi Volkswagen

High-performance spring and piston design is both durable and a performer!

Brand:
034Motorsport - Corporate Logo
ES#:
3183557
Mfg#:
034-145-5000-BLK
In Stock
$134.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo 3.0" Downpipe - With High Flow Cat

ES#2862910 - CTSEXHDP0010CAT - CTS Turbo 3.0" Downpipe - With High Flow Cat - T304 seamless stainless, mandrel bent tubing downpipe to rid your TT of the restrictive factory downpipe - CTS - Audi

T304 seamless stainless, mandrel bent tubing downpipe to rid your TT of the restrictive factory downpipe *Coupe models only, Will not fit roadster - A check engine light may occur due to high flow catalytic con

Brand:
CTS - Corporate Logo
ES#:
2862910
Mfg#:
CTSEXHDP0010CAT
Ships in 1 Business Day
$649.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

3" Stainless Steel Cat-Back Exhaust

ES#2996942 - CTS-EXH-CB-0016 - 3" Stainless Steel Cat-Back Exhaust - True Stainless system with twin 3.5" tips - CTS - Audi

True Stainless system with twin 3.5" tips

Brand:
CTS - Corporate Logo
ES#:
2996942
Mfg#:
CTS-EXH-CB-0016
Ships in 7 Business Days
$749.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Heavy Duty Cast Aluminum Thermostat Housing

ES#3086042 - 006660ECS01 - Heavy Duty Cast Aluminum Thermostat Housing - The last thermostat housing you'll ever need! - ECS - Audi Volkswagen

The last thermostat housing you'll ever need! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3086042
Mfg#:
006660ECS01
In Stock
ON SALE! SAVE 25%
$85.99

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

$64.49 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Street Density Line Motor Mount Kit

ES#3183541 - 034-509-5008-SD - Street Density Line Motor Mount Kit - Includes Engine and Transmission mount with 60 durometer rubber - 034Motorsport - Audi Volkswagen

Includes Engine and Transmission mount with 60 durometer rubber

Brand:
034Motorsport - Corporate Logo
ES#:
3183541
Mfg#:
034-509-5008-SD
In Stock
$338.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Bosch 550cc Fuel Injector - Priced Each

ES#1897179 - INJB550 - Bosch 550cc Fuel Injector - Priced Each - Compatible with BT software applications. Does NOT include injector plug adapters - Bosch - Audi Volkswagen

Compatible with BT software applications. Does NOT include injector plug adapters 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
1897179
Mfg#:
INJB550
In Stock
$77.29

This product was last offered at the strikethrough price on
07-06-2026

$58.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Mount Intercooler Kit

ES#3569344 - 200001003KT - Front Mount Intercooler Kit - Upgraded intercooler kit with silicone hoses - Wagner Tuning - Audi

Upgraded intercooler kit with silicone hoses

Brand:
Wagner Tuning - Corporate Logo
ES#:
3569344
Mfg#:
200001003KT
In Stock
$910.00

This product was last offered at the strikethrough price on
04-20-2026

$850.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Top Tec 4200 Long Life Synthetic Engine Oil (5w-30) - 1 Liter

ES#1306830 - 2004 - Top Tec 4200 Long Life Synthetic Engine Oil (5w-30) - 1 Liter - Fully synthetic, low-SAPS motor oil developed for VAG 504.00/507.00 and BMW Longlife-04 specifications - Liqui-Moly - Audi BMW Volkswagen

Fully synthetic, low-SAPS motor oil developed for VAG 504.00/507.00 and BMW Longlife-04 specifications 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
Liqui-Moly - Corporate Logo
ES#:
1306830
Mfg#:
2004
In Stock
36% off MSRP

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

$21.99

This product was last offered at the strikethrough price on
08-02-2026

$14.09 USD
Free Shipping
on orders $49 and up

Camshaft Chain Tensioner

ES#3234740 - 058109088K - Camshaft Chain Tensioner - Applies tension to the camshaft timing chain - Gates - Audi Volkswagen

Applies tension to the camshaft timing chain Engine code BEA

Brand:
Gates - Corporate Logo
ES#:
3234740
Mfg#:
058109088K
In Stock
$275.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Race N75 Wastegate Frequency Control Valve - "J" Revision

ES#3971234 - 034906283JKT - Race N75 Wastegate Frequency Control Valve - "J" Revision - The absolute quickest & most inexpensive way of getting more HP out of your 1.8T - Includes Pierburg valve and required clamps - Assembled By ECS - Audi Volkswagen

The absolute quickest & most inexpensive way of getting more HP out of your 1.8T - Includes Pierburg valve and required clamps 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3971234
Mfg#:
034906283JKT
Back Ordered
ON SALE!
$181.99

This product was last offered at the strikethrough price on
05-02-2026

$179.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Liqui Moly MolyGen - Oil Service Kit

ES#3439018 - PLSOILKT5MGKT - Liqui Moly MolyGen - Oil Service Kit - Includes standard Hengst oil filter and Liqui Moly 5w-40 oil with MolyGen technology - Assembled By ECS - Audi Volkswagen

Includes standard Hengst oil filter and Liqui Moly 5w-40 oil with MolyGen technology 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3439018
Mfg#:
PLSOILKT5MGKT
In Stock
$92.99

This product was last offered at the strikethrough price on
05-15-2026

$84.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Silicone Turbo Inlet Hose - Audi MK1 TT 225HP

ES#3996444 - 011157ecs02KT - Silicone Turbo Inlet Hose - Audi MK1 TT 225HP - Flexible silicone smooths the intake tract & hinders collapsing. The ultimate in durability! - ECS - Audi

Flexible silicone smooths the intake tract & hinders collapsing. The ultimate in durability! 10X Entries For Our 25th Anniversary Sweepstakes!

Fits up to the 2002 model year for vehicles with ESP

Brand:
ECS - Corporate Logo
ES#:
3996444
Mfg#:
011157ECS02KT
In Stock
ON SALE! SAVE 25%
$176.99

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

$132.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Thermostat Replacement Kit (87°C) - Featuring ECS Heavy Duty Cast Aluminum Thermostat Housing

ES#3138531 - 006660ECS01-01KT - Thermostat Replacement Kit (87C) - Featuring ECS Heavy Duty Cast Aluminum Thermostat Housing - Replace aged components while upgrading, with our ECS Cast Aluminum Thermostat Housing - Assembled By ECS - Audi Volkswagen

Replace aged components while upgrading, with our ECS Cast Aluminum Thermostat Housing 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3138531
Mfg#:
006660ECS01-01KT
In Stock
ON SALE! SAVE 22%
$112.96

This product was last offered at the strikethrough price on
05-02-2026

$88.47 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Waste Gate Frequency Control N75 Valve

ES#2738386 - 06A906283E - Waste Gate Frequency Control N75 Valve - Get your turbo back in action with a new N75 valve. - URO - Audi Volkswagen
ECS Tuning recommends this product.

Get your turbo back in action with a new N75 valve. 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
URO - Corporate Logo
ES#:
2738386
Mfg#:
06A906283E
In Stock
$79.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Parts & Accessories

Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.

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