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Audi A4 Performance Parts & Upgrades

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Supertech Inconel Exhaust Valve Kit

ES#3647523 - ST-AEVI-1106SKT - Supertech Inconel Exhaust Valve Kit - +1mm oversized valve head diameter, single groove keeper setup for high RPM use - Includes Supertech valves, single groove keepers and IE valve seals - Assembled By ECS - Audi Volkswagen

+1mm oversized valve head diameter, single groove keeper setup for high RPM use - Includes Supertech valves, single groove keepers and IE valve seals 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
*Oversized valves require extra machine work to the cylinder head.*

Brand:
Assembled By ECS - Corporate Logo
ES#:
3647523
Mfg#:
ST-AEVI-1106SKT
Back Ordered
$429.99

This product was last offered at the strikethrough price on
11-04-2026

$393.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Supertech Inconel Exhaust Valve Kit

ES#3647522 - ST-AEVI-1103SKT - Supertech Inconel Exhaust Valve Kit - Stock sized valve head diameter, single groove keeper setup for high RPM use - Includes Supertech valves, single groove keepers and IE valve seals - Assembled By ECS - Audi Volkswagen

Stock sized valve head diameter, single groove keeper setup for high RPM use - Includes Supertech valves, single groove keepers and IE valve seals 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
3647522
Mfg#:
ST-AEVI-1103SKT
Back Ordered
$519.99

This product was last offered at the strikethrough price on
11-04-2026

$393.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Diverter Valve - Polished

ES#2917784 - DV25 - Diverter Valve - Polished - Keep your turbo boosting like it should - Euro Sport Acc - Audi Volkswagen

Keep your turbo boosting like it should

Brand:
Euro Sport Acc - Corporate Logo
ES#:
2917784
Mfg#:
DV25
Ships in 3 Business Days
$129.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

P3 Gauge - Audi A4/S4/RS4 B7

ES#4070708 - L3P3AB7X - P3 Gauge - Audi A4/S4/RS4 B7 - Powerful plug-and-play multifunction display - P3 Gauges - Audi

Powerful plug-and-play multifunction display For left hand drive sedan/avant models only

Brand:
P3 Gauges - Corporate Logo
ES#:
4070708
Mfg#:
L3P3AB7X
Ships in 4 Business Days
$389.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Stage 1

Average gain of 45 horsepower and 60 lb-ft of torque on 91 Octane @ 16 PSI

Brand:
Tunezilla - Corporate Logo
ES#:
3097321
Mfg#:
18T-20V-150-1
Ships in 7 Business Days
$389.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 1

Average gain of 38 horsepower and 69 lb-ft of torque on 91 Octane @ 18 PSI For vehicles with ATW & AWM engine codes only

Brand:
Tunezilla - Corporate Logo
ES#:
3097325
Mfg#:
18T-20V-170-1
Ships in 7 Business Days
$389.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Matched Set Of 4 Injectors - 650cc

ES#5447901 - 17U-01-0650-4 - Matched Set Of 4 Injectors - 650cc - E85 Compatible - DeatschWerks - Audi Volkswagen MINI

E85 Compatible Requires tuning and/or additional hardware.

Brand:
DeatschWerks - Corporate Logo
ES#:
5447901
Mfg#:
17U-01-0650-4
Back Ordered
$389.00 USD
This product is lifetime replacement eligible Lifetime Replacement

Front Lower Control Arm Set - With ECS Poly. Bushings

ES#3411547 - 019210ECS01-01 - Front Lower Control Arm Set - With ECS Poly. Bushings - Pre-installed ECS Poly Bushings help reduce suspension deflection and improve durability while easing install - Assembled By ECS - Audi Volkswagen

Pre-installed ECS Poly Bushings help reduce suspension deflection and improve durability while easing install 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE

Brand:
Assembled By ECS - Corporate Logo
ES#:
3411547
Mfg#:
019210ECS01-01
Ships in 5 Business Days
$407.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Compression Dropping Head Gasket

ES#4028164 - 034-201-3100 - Compression Dropping Head Gasket - This gasket will drop compression 0.5 point over stock. - 034Motorsport - Audi Volkswagen

This gasket will drop compression 0.5 point over stock. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4028164
Mfg#:
034-201-3100
Ships in 2 Business Days
$129.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Big Brake Kit - stage 1 - Plain Rotors (345x30)

ES#6241 - B7A4S1Fpln - Front Big Brake Kit - stage 1 - Plain Rotors (345x30) - Upgrade to the stopping power of the Audi S4 - Assembled By ECS - Audi

Upgrade to the stopping power of the Audi S4 10X Entries Into Our F80 M3 Sweepstakes USE CODE KIT15 IN CART FOR BEST PRICE
Upgrade your B7 A4 factory rotors to larger 345mm S4 rotors - Depending on which factory wheel is used, a

Brand:
Assembled By ECS - Corporate Logo
ES#:
6241
Mfg#:
B7A4S1FPLN
In Stock
$515.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Intake Scoop & Overlay Kit

ES#3476954 - 024641ecs01KT - Carbon Fiber Intake Scoop & Overlay Kit - Full solution to give your factory intake system a performance look! - ECS - Audi

Full solution to give your factory intake system a performance look! 10X Entries Into Our F80 M3 Sweepstakes USE CODE ECS20 IN CART FOR BEST PRICE

Brand:
ECS - Corporate Logo
ES#:
3476954
Mfg#:
024641ECS01KT
Back Ordered
$427.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Front Splitter

Delivers an unmatched combination of aggressiveness and luxury elegance

Brand:
Deval - Corporate Logo
ES#:
3142806
Mfg#:
D2523S4
Special Order: No Guaranteed ETA
$385.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BFI Audi B8 Complete Engine Mount - Stage 2 - Priced Each

ES#3991439 - EBFI708K002 - BFI Audi B8 Complete Engine Mount - Stage 2 - Priced Each - Total solution for replacing and upgrading your notoriously weak stock engine mounts for your B8 / B8.5 Audi. - Black Forest Industries - Audi

Total solution for replacing and upgrading your notoriously weak stock engine mounts for your B8 / B8.5 Audi.

Brand:
Black Forest Industries - Corporate Logo
ES#:
3991439
Mfg#:
EBFI708K002
Ships on Dec 1, 2026
$379.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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