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Audi S4 Performance Parts & Upgrades

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Cat-Back Exhaust System

ES#1892708 - 16586 - Cat-Back Exhaust System - 2.5" stainless steel with dual 4" polished stainless tips - Magnaflow - Audi

2.5" stainless steel with dual 4" polished stainless tips

Brand:
Magnaflow - Corporate Logo
ES#:
1892708
Mfg#:
16586
Back Ordered
$1646.00 USD
This product is lifetime replacement eligible Lifetime Replacement

550cc Fuel Injectors - Set Of Six

ES#2574528 - INJB550KT6 - 550cc Fuel Injectors - Set Of Six - Bosch 550cc EV14 Fuel IOnjectors - Great for stage III 2.7T upgrades. Includes injector plug adapters - Bosch - Audi

Bosch 550cc EV14 Fuel IOnjectors - Great for stage III 2.7T upgrades. Includes injector plug adapters We Price Match - Give Us A Call or Chat!

Brand:
Bosch - Corporate Logo
ES#:
2574528
Mfg#:
INJB550KT6
Ships in 10 Business Days
$655.99

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

$545.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount Insert

ES#4620259 - 8K0399151DB - Transmission Mount Insert - Enhance your driving experience by filling the bushing void. - JH Motorsports - Audi

Enhance your driving experience by filling the bushing void.

Brand:
JH Motorsports - Corporate Logo
ES#:
4620259
Mfg#:
8K0399151DB
In Stock
$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Jackal Motorsports Tune - Includes Jackal Tuning Cable

ES#4907822 - B85-1 - Jackal Motorsports Tune - Includes Jackal Tuning Cable - Gains from 86 WHP/64 WTQ on Stage 1 up to 185 WHP/193 WTQ on Stage 2+ E40 - Jackal Motorsports - Audi

Gains from 86 WHP/64 WTQ on Stage 1 up to 185 WHP/193 WTQ on Stage 2+ E40 For vehicles with manual transmission only

Brand:
Jackal Motorsports - Corporate Logo
ES#:
4907822
Mfg#:
B85-1
Ships in 2 Business Days
$810.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Sway Bar - 24mm

ES#1876408 - 71361 - Rear Sway Bar - 24mm - Non-adjustable - H&R - Audi

Non-adjustable We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
1876408
Mfg#:
71361
Ships in 4 Business Days
10% off MSRP

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

$359.00

This product was last offered at the strikethrough price on
10-01-2026

$323.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

DR Series Wheel Spacers (Black) - 5mm (1 Pair) Black

ES#2731320 - 1055665SW - DR Series Wheel Spacers (Black) - 5mm (1 Pair) Black - Get that stance that you've been craving with these new spacers - H&R - Audi Mercedes Benz MINI Porsche

Get that stance that you've been craving with these new spacers We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
2731320
Mfg#:
1055665SW
Ships in 4 Business Days
10% off MSRP

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

$99.99

This product was last offered at the strikethrough price on
06-30-2026

$89.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Carbon Fiber Intake Lid

ES#3660590 - IEINCG4 - IE Carbon Fiber Intake Lid - Add some style, class, and sporty look to your IE S4 or S5 3.0T Cold Air Intake with this direct-fit carbon fiber lid! - Integrated Engineering - Audi

Add some style, class, and sporty look to your IE S4 or S5 3.0T Cold Air Intake with this direct-fit carbon fiber lid! To be used in Integrated Engineering Cold Air Intake System: IEINCG2A or IEINSG1

Brand:
Integrated Engineering - Corporate Logo
ES#:
3660590
Mfg#:
IEINCG4
In Stock
$321.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IE Adjustable Front Sway End Links

ES#5375255 - IESSCK4 - IE Adjustable Front Sway End Links - Easy adjustments perfect any ride height and provide tight, responsive handling - Integrated Engineering - Audi

Easy adjustments perfect any ride height and provide tight, responsive handling

Brand:
Integrated Engineering - Corporate Logo
ES#:
5375255
Mfg#:
IESSCK4
Ships in 1-2 days
$229.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer Flush Fit Kit - Black Bolts

ES#2951801 - 010425ECS01KT1 - Wheel Spacer Flush Fit Kit - Black Bolts - Includes spacers & Black bolts to obtain a flush look on your OE 18" wheels - Assembled By ECS - Audi

Includes spacers & Black bolts to obtain a flush look on your OE 18" wheels 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
2951801
Mfg#:
010425ECS01KT1
In Stock
ON SALE! SAVE 13%
$204.99

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

$178.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Lower Radius Arm To Chassis Bushing - Street

ES#4046169 - PFF3-702 - Front Lower Radius Arm To Chassis Bushing - Street - Audi A4 / A5 / S5 / Q5 / SQ5 / RS4 Front Lower Radius Arm To Chassis Bushing - Street - Powerflex - Audi

Audi A4 / A5 / S5 / Q5 / SQ5 / RS4 Front Lower Radius Arm To Chassis Bushing - Street

Brand:
Powerflex - Corporate Logo
ES#:
4046169
Mfg#:
PFF3-702
Ships in 3 Business Days
$145.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Wheel Spacer Pair - 5mm

ES#3618563 - 034-604-7004 - 034Motorsport Wheel Spacer Pair - 5mm - Designed to fit most Audi and BMW vehicles with a 66.5mm center bore and 5x112mm wheel bolt patterns. - 034Motorsport - Audi

Designed to fit most Audi and BMW vehicles with a 66.5mm center bore and 5x112mm wheel bolt patterns. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
3618563
Mfg#:
034-604-7004
In Stock
$80.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JHM High Flow Downpipe Kit

ES#4505214 - JHM-B8DPPDK - JHM High Flow Downpipe Kit - Catted Downpipes with or without X pipe and with or without Integrated Baffling! - JH Motorsports - Audi

Catted Downpipes with or without X pipe and with or without Integrated Baffling!

Brand:
JH Motorsports - Corporate Logo
ES#:
4505214
Mfg#:
JHM-B8DPPDK
Ships in 10 Business Days
Starting at $0.00 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

2-Piece Lightweight Rear Rotors - Pair (330x22)

ES#4045892 - 1024x330x22 - 2-Piece Lightweight Rear Rotors - Pair (330x22) - Shaves 11lbs of unsprung weight from the rear of your car while increasing braking performance. - JH Motorsports - Audi Porsche

Shaves 11lbs of unsprung weight from the rear of your car while increasing braking performance.

Brand:
JH Motorsports - Corporate Logo
ES#:
4045892
Mfg#:
1024X330X22
Ships on Nov 9, 2026
$799.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS Street Sport Engine Mount Kit

ES#4140455 - cts-em-b8-50dKT - CTS Street Sport Engine Mount Kit - 50 Durometer rubber construction - Set of two mounts for left and right sides - CTS - Audi

50 Durometer rubber construction - Set of two mounts for left and right sides

Brand:
CTS - Corporate Logo
ES#:
4140455
Mfg#:
CTS-EM-B8-50DKT
Ships in 8 Business Days
$399.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B8/B8.5 A4/S4 - Adjustable Damping Performance Coilover System & 19" Style 628 ALZOR Wheels

ES#4759731 - 025412ECS01EB3KT - Audi B8/B8.5 A4/S4 - Adjustable Damping Performance Coilover System & 19" Style 628 ALZOR Wheels - Enthusiast Bundles - Audi

Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4759731
Mfg#:
025412ECS01EB3KT
In Stock
ON SALE! SAVE 33%
$2382.98

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

$1599.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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