Replace your “Siemens MS41” DME with a tunable racing ECU!
Replace your “Siemens MS41” DME with a tunable racing ECU!
Plug & play power — Gains are 80whp/100wtq on pump gas and up to 150whp/175tq on higher octane or E85 mixtures!
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!
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
07-28-2026
Data Cable to Assist with Bootmod3 Software Installation
10X Entries For Our 25th Anniversary Sweepstakes!
This product was last offered at the strikethrough price on
05-02-2026
Removes top speed limiter, raises rev limit to 8,250rpm, improves throttle response, and improves power output - max gains of 22hp and 16tq!
Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash.
Version 1.
Max gains of up to +69 HP and +55 lb-ft TRQ (Crank); +60 HP and +49 lb-ft TRQ (Wheel)
Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!
Plug & play power — gain up to 40 horsepower on a stock car, 70+ horsepower on a modified car!
Not for sale or use in the state of California.
This product was last offered at the strikethrough price on
05-19-2026
Gains of up to 45hp and 60lb/ft!
Not for sale or use in the state of California.
Unlock the hidden potential from your BMW with a safe and easy to use module from RaceChip
Performance software tuned for M50 manifold, HFM, & high flow injectors
This product was last offered at the strikethrough price on
05-02-2026
Performance software tuned for M50 manifold, HFM, cams, headers & high flow injectors
This product was last offered at the strikethrough price on
05-02-2026
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!
This product was last offered at the strikethrough price on
05-02-2026
Performance software designed to unlock your BMW's potential. Removes top speed limiter, raises rev limit to 8,100rpm, improves throttle response, and improves power output!
Wake up your BMW with dyno-proven gains by Jim Conforti - +24HP +19LB/FT
Satisfaction guaranteed! Includes 30 day money back guarantee and limited lifetime warranty. -- For vehicles with Turner Motorsport 2.5L stroker kit an
This product was last offered at the strikethrough price on
05-02-2026