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      01-27-2010, 09:49 AM   #14
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Originally Posted by M3 vert View Post
What gains did you get with powerchip, or in other words what power gains were advertised, and does it feel different? was it worth it knowing you could risk your warranty etc
Judging from my before/after dyno's, I gained about 18 whp and 3 wtq (link to my dyno thread:

I admit that I took a risk. The reason why I went for it was because I wanted to have the missing puzzle that would complete the rest of my bolt-on's.

If you feel even slightly nervous, my advice is to keep the peace of mind in having your M3's factory warranty.
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