i would rank the midpipe first as well. when i put my Dinan midpipe on it was a new car with all the added power. the diff would be second in my op. the other stuff is ok but nothing special. i have them except for the fuel and the only things that impressed me was the midpipe and the diff.
but again the diff is not for everyone as you noted. although i have yet to read anyone with the diff that does not like it
Quote:
Originally Posted by swamp2
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The best bang for the buck mods are (roughly in order):
-X pipe with secondary cat delete
-High octane fuel
-ECU software (perhaps matched for the above mods)
-Pulleys
-Titanium cat back exhaust (weight drop and small power bump)
-Increase redline
Some might argue for a high flow air filter but I'm not convinced these actually add power.
With these mods you can count on 30-35 hp gain for about $6k. This car will leave any FD ratio modded stock M3 in the dust.
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