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Audi B6 A4 Quattro 1.8T

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Audi B6 A4 Quattro 1.8T Performance Engine Parts

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550cc Injectors - Set Of 4

Matched set with connections

Brand:
DeatschWerks - Corporate Logo
ES#:
5446104
Mfg#:
17U-01-0550-4
In Stock at Vendor
$329.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Hobbs Switch (30 psi)

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

Brand:
SnowPerformance - Corporate Logo
ES#:
2826280
Mfg#:
81081
In Stock at Vendor
$74.99 USD
Free Shipping
on orders $49 and up

Universal Valved Muffler Kit - Single Inlet / Single Outlet - 2.5" (63mm) - 1 Muffler

ES#4686062 - UVM.63MM.x1 - Universal Valved Muffler Kit - Single Inlet / Single Outlet - 2.5" (63mm) - 1 Muffler - 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 - Valvetronic Designs - Audi BMW Volkswagen Mercedes Benz MINI Porsche

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:
Valvetronic Designs - Corporate Logo
ES#:
4686062
Mfg#:
UVM.63MM.X1
Ships in 5 Business Days
ON SALE! SAVE 10%
$399.99

This product was last offered at the strikethrough price on
08-25-2026

$359.99 USD
Free Shipping
on orders $49 and up

Supertech Forged Connecting Rod - Priced Each

ES#4734088 - CR-VW144-20 - Supertech Forged Connecting Rod - Priced Each - 144x20 Forged Rod with ARP 2000 hardware. - Supertech - Audi Volkswagen

144x20 Forged Rod with ARP 2000 hardware.

Brand:
Supertech - Corporate Logo
ES#:
4734088
Mfg#:
CR-VW144-20
Ships in 8 Business Days
$208.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supertech Piston - 2mm Oversize - Set Of 4

Supertech 2mm oversized piston set including 20mm wrist pins.

Brand:
Supertech - Corporate Logo
ES#:
4742802
Mfg#:
P4-VW18T83-N4
Ships in 8 Business Days
$638.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supertech Titanium Valve Retainer - Intake - Priced Each

Triple Groove retainer manufactured with high-quality military-certified Titanium alloy, and CNC machined for a tight fit.

Brand:
Supertech - Corporate Logo
ES#:
4735322
Mfg#:
RET-AU5VI-T2
Ships in 8 Business Days
$18.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supertech Piston - 1.5mm Oversize - Set Of 4

Supertech 1.5mm oversized piston set including 20mm wrist pins.

Brand:
Supertech - Corporate Logo
ES#:
4742801
Mfg#:
P4-VW18T8250-N4
Ships in 8 Business Days
$638.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Union Tee - 1/4 Quick Connect

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

FP34 Fuel Pump Surge Tank

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

Oversized Valve Set 5-valve

ES#4858483 - 034-201-8014 - Oversized Valve Set 5-valve - High Flow Valve Set - 034Motorsport - Audi Volkswagen

High Flow Valve Set 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4858483
Mfg#:
034-201-8014
Back Ordered
ON SALE! SAVE 10%
$200.00

This product was last offered at the strikethrough price on
08-17-2026

$180.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Street Sport Transmission Mount – 50 Durometer

ES#4830808 - CTS-TM-AUDI4-50D - Street Sport Transmission Mount 50 Durometer - A significant upgrade to performance and feel over the stock mount. - CTS - Audi

A significant upgrade to performance and feel over the stock mount. Early B6 A4 w/ 5-Speed Manual Transmissions only.

Brand:
CTS - Corporate Logo
ES#:
4830808
Mfg#:
CTS-TM-AUDI4-50D
Special Order: No Guaranteed ETA
$84.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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

Universal T-Style Valved Muffler Kit - Single Inlet / Dual Outlet - 3.0" (76mm) - 1 Muffler

ES#5457434 - UVM76MMTSTYLEX1 - Universal T-Style Valved Muffler Kit - Single Inlet / Dual Outlet - 3.0" (76mm) - 1 Muffler - 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 - Valvetronic Designs - Audi BMW Volkswagen Mercedes Benz MINI Porsche

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:
Valvetronic Designs - Corporate Logo
ES#:
5457434
Mfg#:
UVM76MMTSTYLEX1
Back Ordered
ON SALE! SAVE 10%
$499.99

This product was last offered at the strikethrough price on
08-25-2026

$449.99 USD
Free Shipping

Universal Valved Muffler Kit - Single Inlet / Dual Outlet - 3.0" (76mm) - 1 Muffler

ES#5457432 - UVM76MMDUALOUTx1 - Universal Valved Muffler Kit - Single Inlet / Dual Outlet - 3.0" (76mm) - 1 Muffler - 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 - Valvetronic Designs - Audi BMW Volkswagen Mercedes Benz MINI Porsche

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:
Valvetronic Designs - Corporate Logo
ES#:
5457432
Mfg#:
UVM76MMDUALOUTX1
Back Ordered
ON SALE! SAVE 10%
$399.99

This product was last offered at the strikethrough price on
08-25-2026

$359.99 USD
Free Shipping

Universal Valved Muffler Kit - Single Inlet / Single Outlet - 3.5" (89mm) - 1 Muffler

ES#5457437 - UVM.89MM.X1 - Universal Valved Muffler Kit - Single Inlet / Single Outlet - 3.5" (89mm) - 1 Muffler - 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 - Valvetronic Designs - Audi BMW Volkswagen Mercedes Benz MINI Porsche

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:
Valvetronic Designs - Corporate Logo
ES#:
5457437
Mfg#:
UVM.89MM.X1
Back Ordered
ON SALE! SAVE 10%
$399.99

This product was last offered at the strikethrough price on
08-25-2026

$359.99 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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