Quote:
Originally Posted by nitjt
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I don't know much about UR, but this thread scares me:
http://www.e90post.com/forums/showthread.php?t=302931
Downpipes without a tune will yield little to no gain. With a tune, you will notice a big difference.
A tune should be your first mod. Bolt ons (downpipes, intercooler, etc... ) don't provide any real gains without a tune.