Stock sized valve head diameter, single groove keeper setup for high RPM use
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
4689798
Mfg#:
SPTAIVN-1103S-12
In Stock at Vendor
20% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$394.99
This product was last offered at the strikethrough price on 10-26-2026
Reduce body roll with this new sway bar from H&R
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat!
Brand:
ES#:
7418
Mfg#:
71257
Ships in 3 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.
$349.00
This product was last offered at the strikethrough price on 10-01-2026
Install kit used for APR MS100035
Call In Or Chat For Best Price! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply To be used for APR Supercharger Drive Pulley Upgrade MS100135
Brand:
ES#:
2209707
Mfg#:
MS100025
Ships in 5 Business Days
ON SALE!
SAVE 10%
$349.99
This product was last offered at the strikethrough price on 09-28-2026
Increases diameter of factory pulley from ~162mm to ~187mm, which in turn spins the supercharger ~15.4% faster!
Call In Or Chat For Best Price! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply APR Stage II software is required to run any upgraded Pulley configuration and is sold separately - Pleas
Brand:
ES#:
3219162
Mfg#:
MS100133
Ships in 5 Business Days
ON SALE!
SAVE 10%
$349.99
This product was last offered at the strikethrough price on 09-28-2026
Improve your Audi's throttle response and overall drivability with this Sprint Booster Power Converter.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
4220122
Mfg#:
77-16409
Back Ordered
19% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$389.99
This product was last offered at the strikethrough price on 10-26-2026
Precision manufactured for consistent stopping power during high performance driving. Featuring a matte black zinc coating for corrosion protection.
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
4668232
Mfg#:
8E0615601R-S
Ships in 5 Business Days
ON SALE!
$319.99
This product was last offered at the strikethrough price on 06-13-2026
Includes everything you need to install spacers on two wheels
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply Please measure your hub protrusion to ensure it will still make contact with the center of the wheel. See
Brand:
ES#:
2568230
Mfg#:
ECS10611KTWBC
In Stock
ON SALE!
SAVE 29%
$143.99
This product was last offered at the strikethrough price on 05-02-2026
Includes 1310mm belt for use with 57mm or 63mm supercharger pulleys
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply Only for us with Fluidampr 651201C.
Brand:
ES#:
3557475
Mfg#:
651201CR187KT
Back Ordered
$305.99 USD
Free Shipping
Lifetime Replacement
Request In-Stock Notification
An error has occurred. Please try again.
Enter your email address below to be notified when this product is back in stock and available for order.*
* Your email address will only be used for the notification of this product and deleted afterward
Larger diameter pulley increases the speed at which the supercharger spins, increasing the boost pressure output
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply *NOTE: This kit must be used with appropriate "Stage 2" performance software.
Brand:
ES#:
3438174
Mfg#:
CTS-HW-266-180
Special Order: No Guaranteed ETA
ON SALE!
SAVE 20%
$379.99
This product was last offered at the strikethrough price on 09-29-2026
Comes with everything you need to install spacers on two wheels
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply Please measure your hub protrusion to ensure it will still make contact with the center of the wheel. See
Brand:
ES#:
2063855
Mfg#:
ECS10612KTWB
In Stock
ON SALE!
SAVE 25%
$134.99
This product was last offered at the strikethrough price on 06-13-2026
Precision manufactured for consistent stopping power during high performance driving. Featuring a matte black zinc coating for corrosion protection.
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
4668254
Mfg#:
8D0615601D-XS
In Stock
ON SALE!
$311.99
This product was last offered at the strikethrough price on 06-13-2026
Push your wheels out for a bold stance with HPA’s 20mm Wheel Spacer & Bolt Kit - precision CNC machined hubcentric spacers and extended hardware for a secure, vibration free fit.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Holds the driveshaft where it should be.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
The rubber damper replacement is made from high strength 7075 Aluminum and finished with a black anodized coating for corrosion resistance.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Eliminate the delay in throttle response times with a simple XLR addition! Allows for Bluetooth connectivity for easy App based control.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.
