Wirelessly connect your JB4 to your phone!
For JB4 systems produced 2017 and later. Please check board diagrams to properly identify your JB4 before ordering.
Enhance your F Chassis with this beautiful Axle-Back exhaust from Turner. Valved design for an optional release of the naturally amazing performance and sound of your 4-cylinder powered BMW!
10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4781515
Mfg#:
048013LA07KT
In Stock
ON SALE!
SAVE 15%
$635.97
This product was last offered at the strikethrough price on 06-13-2026
Includes Bav Auto Performance Ignition Coils, NGK 94201 Spark Plugs, and dielectric grease for a quick and easy install and upgrade!
10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4423821
Mfg#:
B4846PERFIGNG1KT
In Stock
ON SALE!
SAVE 19%
$229.99
This product was last offered at the strikethrough price on 05-02-2026
A common failure part on B48/B58/S58 fuel systems, the fuel tank breather valve prevents the fuel tank from over pressurizing. Will normally cause CEL when failed.
2X Entries For Our 25th Anniversary Sweepstakes! We Price Match - Give Us A Call or Chat!
Brand:
ES#:
4691047
Mfg#:
13907643106
In Stock
ON SALE!
SAVE 40%
$121.99
This product was last offered at the strikethrough price on 04-15-2026
Everything you need to service your ignition system, featuring Dinan performance ignition coils
Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4608677
Mfg#:
D650-0010KT3
In Stock
$271.99
This product was last offered at the strikethrough price on 07-14-2026
Protect your vehicle's fragile oil pan and under carriage with this 1/8” (3.175mm) thick aluminum skid plate. A rigid skid plate made in the USA with access to the drain plug without removal! Also available in a wrinkle black finish see ES4315747
10X Entries For Our 25th Anniversary Sweepstakes! For RWD production vehicles only
Brand:
ES#:
4324949
Mfg#:
025995TMS10KT
In Stock
ON SALE!
SAVE 10%
$595.99
This product was last offered at the strikethrough price on 06-13-2026
Eliminate intake restriction and improve throttle response and power!
Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes! CARB certified for sale in all 50 states
Brand:
ES#:
3970039
Mfg#:
D760-0048
EO#:
D-176-56
Ships in 5 Business Days
11% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$643.99
This product was last offered at the strikethrough price on 08-18-2026
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
