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Audi A4 Performance Parts & Upgrades

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1.8T/2.0T Gen3 Diverter Valve Upgrade - Black

ES#4839642 - 013907LA01-03KT - 1.8T/2.0T Gen3 Diverter Valve Upgrade - Black - The LAST diverter valve you'll ever need! Billet aluminum construction and heavy-duty Viton o-rings make for the ultimate upgrade in longevity and performance. - ECS - Audi Volkswagen Porsche

The LAST diverter valve you'll ever need! Billet aluminum construction and heavy-duty Viton o-rings make for the ultimate upgrade in longevity and performance. 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4839642
Mfg#:
013907LA01-03KT
In Stock
$333.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

APR High Pressure Fuel Pump

ES#11994 - MS100016 - APR High Pressure Fuel Pump - Requires APR engine management software to allow for the increased flow of the APR pump. - APR - Audi Volkswagen

Requires APR engine management software to allow for the increased flow of the APR pump. Call In Or Chat For Best Price!

Brand:
APR - Corporate Logo
ES#:
11994
Mfg#:
MS100016
Back Ordered
11% off MSRP

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

$1687.99

This product was last offered at the strikethrough price on
11-05-2026

$1499.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo Rear Subframe Insert Set

ES#5435532 - HW-561 - CTS Turbo Rear Subframe Insert Set - Lock down your B9 Audi's chassis and eliminate rear subframe flex with CTS Turbos billet aluminum insert set, delivering sharper handling and instant power transfer with minimal NVH. - CTS - Audi

Lock down your B9 Audi's chassis and eliminate rear subframe flex with CTS Turbo’s billet aluminum insert set, delivering sharper handling and instant power transfer with minimal NVH.

Brand:
CTS - Corporate Logo
ES#:
5435532
Mfg#:
HW-561
In Stock
$149.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete Heavy Duty Front Control Arm Kit

ES#3619007 - 116 050 0222/HD - Complete Heavy Duty Front Control Arm Kit - Keep your suspension in top shape - Includes all front control arms, ball joints, and hardware - Meyle HD - Audi

Keep your suspension in top shape - Includes all front control arms, ball joints, and hardware 5X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
Fits models from production date 7/21/2009 up through 11/2/2009 (M12 Ball Joints) - Please verify existing prior to ordering

Brand:
Meyle HD - Corporate Logo
ES#:
3619007
Mfg#:
116 050 0222/HD
Ships on Dec 1, 2026
$743.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

DR Series Wheel Spacers - 12mm (1 Pair)

ES#5109 - 2455571 - DR Series Wheel Spacers - 12mm (1 Pair) - Fine tune your stance and improve handling - H&R - Audi Volkswagen

Fine tune your stance and improve handling We Price Match - Give Us A Call or Chat!
Fits hub height contour up to 13.50mm. Inside wheel bevel = 4.0 x 45 degrees

Brand:
H&R - Corporate Logo
ES#:
5109
Mfg#:
2455571
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.

$109.99

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

$98.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034 Motorsport 12.5mm Wheel Spacer - Pair

ES#4751517 - 034-604-7021 - 034 Motorsport 12.5mm Wheel Spacer - Pair - 12.5mm Wheel Spacer Pair is designed to fit most Audi & BMW vehicles with a 66.6mm center bore and 5x112mm wheel bolt patterns. - 034Motorsport - Audi

12.5mm Wheel Spacer Pair is designed to fit most Audi & BMW vehicles with a 66.6mm center bore and 5x112mm wheel bolt patterns. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4751517
Mfg#:
034-604-7021
Back Ordered
$106.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 3mm With Black Conical Seat Bolts

ES#2748179 - ECS10152KTWBC1KT - ECS Wheel Spacer & Bolt Kit - 3mm With Black Conical Seat Bolts - Includes everything you need to install spacers on two wheels - ECS - Audi Volkswagen

Includes everything you need to install spacers on two wheels 10X Entries Into Our F80 M3 Sweepstakes
Please measure your hub protrusion to ensure it will still make contact with the center of the wheel. See

Brand:
ECS - Corporate Logo
ES#:
2748179
Mfg#:
ECS10152KTWBC1KT
Ships on Nov 23, 2026
$122.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Front & Rear Sway Bar Kit

ES#3536772 - 72368 - Performance Front & Rear Sway Bar Kit - Includes front (32mm) and rear (20mm) adjustable sway bars with required bushings - H&R - Audi

Includes front (32mm) and rear (20mm) adjustable sway bars with required bushings We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
3536772
Mfg#:
72368
Back Ordered
10% off MSRP

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

$815.00

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

$733.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport Coil Pack Hold-Down Bracket Kit

ES#4147796 - 034-107-Z028 - 034Motorsport Coil Pack Hold-Down Bracket Kit - Keep your upgraded 2.0T style coil packs cool and seated with the 034Motorsport Coil Pack Hold-Down Bracket Kit for Audi B5/B6 A4, 8N TT, VW, MkIV Beetle, MkIV GLI/Golf/GTI/Jetta/Rabbit, B5 Passat 1.8T vehicles! - 034Motorsport - Audi Volkswagen

Keep your upgraded 2.0T style coil packs cool and seated with the 034Motorsport Coil Pack Hold-Down Bracket Kit for Audi B5/B6 A4, 8N TT, VW, MkIV Beetle, MkIV GLI/Golf/GTI/Jetta/Rabbit, B5 Passat 1.8T vehicles! 2X Entries Into Our F80 M3 Sweepstakes
*Does not include 2.0T Coil Packs*

Brand:
034Motorsport - Corporate Logo
ES#:
4147796
Mfg#:
034-107-Z028
Ships in 3 Business Days
$208.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B9 A4/S4 Carbon Fiber Front Lip Spoiler & Grille Accent Set

ES#5470749 - 019196ECSEBKT - Audi B9 A4/S4 Carbon Fiber Front Lip Spoiler & Grille Accent Set - Hand-laid carbon fiber to upgrade your exterior styling - Enthusiast Bundles - Audi

Hand-laid carbon fiber to upgrade your exterior styling Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
5470749
Mfg#:
019196ECSEBKT
Ships in 9 Business Days
$1452.98 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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