Alter parameters and fine-tune � wirelessly!
For use with N54 JB4 systems and any JB4 manufactured prior to 2017. Please check board diagrams to properly identify your JB4 before ordering.
Brand:
ES#:
3508698
Mfg#:
JB4-BT
In Stock
$149.00
This product was last offered at the strikethrough price on 05-12-2026
Designed for a wide range of demanding, high performance applications, this battery is reliable, long-lasting, and engineered for high shock and vibration applications.
Increases turbo response & airflow, with less turbo lag. By eliminating the restrictive muffler in the OE intake tube, this allows for more “intake noises”, such as turbo spool and the blow off valve
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Brand:
ES#:
4057527
Mfg#:
026510TMS09KT
Ships in 8 Business Days
ON SALE!
SAVE 20%
$461.99
This product was last offered at the strikethrough price on 06-13-2026
Easy to install, easy to use boost controller - up to 30HP, 40lb/ft gain!
Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3149056
Mfg#:
D440-0010
Ships in 6 Business Days
ON SALE!
SAVE 10%
$285.99
This product was last offered at the strikethrough price on 07-31-2026
Does not include oil cooler. Includes gasket, filter, and plastic cap.
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Whether you're maintaining or repairing your stock engine or looking for added horsepower, we have one of the most comprehensive inventories of engine parts and accessories for German cars. From hard engine parts like connecting rods, pistons, cylinder heads, short blocks, and engine timing parts to performance engine software upgrades; we have you covered.
Lifetime Replacement
