The E39 M5 Video Guide Blog

Here’s an article written by Larry Webster about an E39 M5 modified none other by Dinan. The shocker is that Dinan was able to turn a perfect car into an even more perfect car.

The modified version increased the torque from 394 to 470 without doing a turbo or a supercharger. Dinan pproached the task in a unique way. First he increased the engine’s breathing by ditching the stock air boxes and airflow meters. This was replaced by better flowing units and shorter but larger-diameter velocity stacks. He then bored out each of the throttle bodies.

Then the exhaust was modified by installing a set of headers that Dinan made himself. This results in a smooth air flow to produce an extra 28 horsepower. A new exhaust system was also installed that produces a hoarse sound and weighs less than 29 pounds compared to the stock system. He also decreased the flywheel’s weight by seven pounds.

And finally, the hardest modification of all. Reprogramming the engine’s computer to make good use of the new engine’s breathing. Should you have the S2-M5 system installed in your E39 M5 by Dinan, you will get a four year or a 50,000 mile warranty too.

Read on at the following site: http://www.caranddriver.com/reviews/car/02q4/dinan_s2-m5-specialty_file

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1. Upgrading your E39 M5
2. Full iPod Connection for the E39 M5
3. How To Connect Sirius Satellite Radio in the E39 M5