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.
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
Dinan's newest in-line tuner that not only gives more power but also many additional features accessible via their free BT phone app - Adds up to 60-75 WHP/WTQ on BMW S58 powered applications!
Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4872006
Mfg#:
D440-0200
Ships on Aug 17, 2026
11% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$843.99
This product was last offered at the strikethrough price on 07-21-2026
Performance software designed to unlock your BMW's potential. Removes top speed limiter, raises rev limit to 7,000rpm, improves throttle response, and improves power output: +15HP +9LB/FT gains!
Brand:
ES#:
3138899
Mfg#:
N3MS41
In Stock
ON SALE!
SAVE 10%
$349.00
This product was last offered at the strikethrough price on 05-02-2026
Dinan's newest in-line tuner that not only gives more power but also many additional features accessible via their free BT phone app - Adds up to 60-75 WHP/WTQ on BMW S58 powered applications and includes a factory matching 4-YR/50k mile warranty!
Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4872005
Mfg#:
D440-0200-W
Ships on Aug 17, 2026
11% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$2643.99
This product was last offered at the strikethrough price on 07-21-2026
All the performance ECU/TCU 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.
