🔥 E9X M3 CUSTOM ECU REMAP — STAGE 1 OR STAGE 2 🔥
Unlock the true potential of your BMW E9X M3 with a fully custom ECU calibration from Modstock Exhaust Modifications.
💻 CUSTOM ECU REMAP — £495
Whether you’re looking for sharper throttle response, improved drivability or increased performance, our custom calibration is tailored specifically to your E9X M3.
🏁 STAGE 1 OR STAGE 2 AVAILABLE
Looking for the complete performance package? We can also upgrade your exhaust system to complement your Stage 2 setup and help get the most from your M3.
⚙️ GTS GEARBOX FLASH AVAILABLE
Take your driving experience further with our GTS gearbox flash, which can also be added as part of our Stage 2 package deal.
📩 Enquire for package prices & availability.
📍 WAYS TO BOOK
🔧 Our Workshop — Epsom, Surrey
Have your car professionally tuned at our dedicated workshop.
🚐 Mobile Workshop — Nationwide
With a number of mobile workshops operating around the country, we can bring our services closer to you.
🏠 Dedicated Driveway Service
Prefer the convenience of having it done at home or work? We can come directly to your home or place of work.
💥 ONE CAR. ONE CALIBRATION. BUILT AROUND YOUR E9X M3.
Whether you want a Stage 1 remap, Stage 2 setup, exhaust upgrade, GTS gearbox flash or a complete package, get in touch with Modstock.
📲 Message us to discuss your car, available upgrades, package options, prices and availability.
MODSTOCK — MORE POWER. MORE CONTROL. MORE FROM YOUR M3.
