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      10-28-2009, 09:09 PM   #46
Roman@ESS
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Drives: ESS Supercharged E92 M3
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Quote:
Originally Posted by Jonmartin View Post
Well I agree to an extent makes no sense to try to get a custom tune on a stock car to me thats a waste but if you're going all out then things change and imo requires a custom tune. All of my previous experience has proven this since I had a catless system installed as well as pulley,airfilter etc. It made a huge difference for me and a few other people I know but thats just the way it goes.
Correct

If you are running a full catless exhaust system you should benefit from a proper custom tune.
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