Unitronic is pleased to offer a solution, allowing vehicles which came with locked "401" TCUs to be tuned by swapping to the genuine Bosch DQ381.2 Unlocked TCU.
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
Designed to hold upwards of 650 ft/lbs of torque to the wheels with rigid organic discs
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
Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! 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#:
5425532
Mfg#:
009200ECSEBKT
Ships on Dec 11, 2026
ON SALE!
SAVE 19%
$1610.71
This product was last offered at the strikethrough price on 05-06-2026
In-house engineered for the MK6 Jetta enthusiast! Features T304 SS Tig-welded 2.5" tubing and a Valved muffler for audible obedience or wide open for glorious exhaust notes!
Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! 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#:
4751025
Mfg#:
026396ECSEBKT
Ships on Jun 1, 2027
ON SALE!
SAVE 22%
$1657.99
This product was last offered at the strikethrough price on 05-05-2026
Includes Adjustable Short Shifter and Solid Shifter Bushings for improved gear engagement and precision!
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 For vehicles with shift lever part #1K0711046M only.. Please see photos of part to ensure fitment. For vehicles with 8.5mm and 8mm Bushing Pins -- See Identification PDF to verify vehicle fitment
Brand:
ES#:
3195138
Mfg#:
016286ECS01-01KT
In Stock
ON SALE!
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$405.99
This product was last offered at the strikethrough price on 06-13-2026
Features 32 way adjustable damping, variable length, zinc-coated shock bodies and performance sway bar end links. Includes all new mounts, bearings and hardware for a comprehensive suspension package.
Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! 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 Available height adjustment range of (25.25" FTG - 23.25" FTG)
Brand:
ES#:
4751545
Mfg#:
003946LEB3KT
In Stock
ON SALE!
SAVE 17%
$1563.64
This product was last offered at the strikethrough price on 05-05-2026
In-house engineered for the MK5 GTI enthusiast! Features T304 SS Tig-welded 2.5" tubing and a valved muffler for audible obedience or wide open for glorious exhaust notes!
Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! 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#:
4751031
Mfg#:
006555ECS01EBKT
In Stock
ON SALE!
SAVE 24%
$1710.96
This product was last offered at the strikethrough price on 05-05-2026
Uprated OEM+ turbocharger SuperCore fully compatible with stock turbine housing of original equipment IHI IS38 turbo and Shuenk IS38+
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 For use with stock IHI IS38 or Shuenk IS38+ turbine housings only.
Deepen the exhaust note without replacing the entire exhaust system
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#:
3449956
Mfg#:
CTS-EXH-TP-0007
Ships in 7 Business Days
ON SALE!
SAVE 10%
$179.99
This product was last offered at the strikethrough price on 09-29-2026
Purchase the Fabless Manufacturing MK1 VR6 kit and enjoy all the benefits of the VR6 engine, with the highest quality manufacturing solution on the market.
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 see description for details.
APR performance ignition coils, offering up to 10% more energy output than stock for a stronger, more reliable spark.
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
Brand:
ES#:
5491916
Mfg#:
MS1002664KT
In Stock
ON SALE!
SAVE 10%
$119.99
This product was last offered at the strikethrough price on 09-28-2026
Produce more HP, improve throttle response, and generate more intake/diverter valve volume.
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 CARB certified for sale in all 50 states
Brand:
ES#:
4620327
Mfg#:
65.10.09R
EO#:
D-236-25
Ships in 1 Business Day
$679.00
This product was last offered at the strikethrough price on 09-22-2026
Works as a replacement for most Bosch fuel pressure regulators. Adjustable from 3.3-5 BAR
2X 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
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.
