Firstly, we run a thorough diagnosis on your E30. This is to ensure we're not mapping a car that already has troubles. Then we Dyno (Rolling Road) the car to certify its standard power output.

E46 M3 CSL on Rolling Road.

We run 4 huge fans to imitate real world wind speed.

Then the car is remapped and rolling road'd once more to prove your power gains and where in the rev-range they are most prominent. The process is totally reversible, and usually takes 60-90 minutes. Typical gains are 15bhp and 18ft/lbs of torque.

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The standard E30 M3 system is both restrictive and very expensive to replace from BMW. The Thorney Motorsport exhaust is now recognised as the best in the market for the E30 and is one of our best sellers. Constructed from type 304 stainless steel and benefitting from the usual complete 100% guarantee the system allows us to advance the ECU remap to take advantage of the considerable extra breathing it allows.

BMW E30 M3 TMS Exhaust System

E46 M3 CSL on Rolling Road.

This extra airflow is very noticeable and allows the extra advance on the map   to generate extra power and torque over and above a Power Pack 1. It also sounds fantastic (truly suits the nature of the car) and saves 10kg's in weight over standard.

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The World is your oyster with this engine, there are so many options as regards, induction, engine management systems, head work that we could fill a website just with these, best thing is to give us a call and discuss your requirements.