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      11-17-2010, 06:04 PM   #100
mineo77
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Drives: 2010 135i,1989 PRO3,2001 530i
Join Date: Aug 2009
Location: Portland,OR

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2010 135i coupe  [3.78]
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Quote:
Originally Posted by bryce View Post
not much power to be had there. catless downpipes is the biggest power gainer as far as exhaust modifications. i run ar design catless downpipes with the stock exhaust, sounds nice and subtle and i'm not losing much power from the secondary cats or muffler. one of these days i'll probably buy a dp-back exhaust, mostly for the sound though. like i said, the biggest restriction is the stock downpipes. get some catless dp's and enjoy the quicker turbo spool up, higher boost capabilities, and the intoxicating "swoosh" sounds
Running full catless set up. Just recently swapped out my AR Catted dp's for Macht Schnell catless. Instant power improvement, didnt expect to notice much difference but overall power is MUCH improved. The cats, even race cats, restrict a lot. sound overall wasnt changed too much, a little more volume but the biggest difference was the power.

GO CATLESS!!!
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