Quote:
Originally Posted by BLACK MARKT
I've become a little bored of my M5 so now I'm looking to increase the HP!!
I'm already running the MEISTERSCHAFT GTC + LXR PIPE which I'm extremely happy with ...
So I'm thinking about doing a stage 1 ECU tune with the factory DP's ...
However I've been going back and forth whether I should do the ECU tune or not but honestly I'm afraid of the following :
1. Can my dealer detect it the tune?
2. How reliable is the ECU tune?
3. Will there be a engine light?
4. In California we run 91 octane - will that be a problem?
5. Will I really FEEL a substantial difference?
6. What's the actuall power increase?
WHAT ARE YOU AFRAID OF?
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So what are you going to do when you are bored of your tuned M5?
Also, the car is already significantly traction limited for the amount of power it has in stock form. I would put money into some aftermarket wheels and wider tires before anything else on this car.
Think about it.....what will an ECU tune do? The traction/stability mechansims are just going to kick in that much sooner and make all that extra power completely superfluous. With the DSC off, the stock tires will just spin endlessly and/or create dangerous uncontrolled conditions at higher speed.
My vote is to get more rubber to the ground.