Thread: HFC or X-pipe
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      06-08-2010, 01:16 PM   #14
M II
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Drives:
Join Date: Jun 2009
Location: La Habra, CA

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Quote:
Originally Posted by LV-E92M3 View Post
My set up was the Fabspeed HFC/X pipe with stock exhaust for a month.
There's no drone at all and making better sound + performance 20whp gain + no cell since I drove my car for 2k miles ( some people said it pops the engine cheek light, but mine doesn't ) You'll love the Fabspeed pack + stock exhaust system if you are fan of the stock exhaust. I hope you make a right choice!

http://www.m3post.com/forums/showthr...light=fabspeed

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Your car sounds amazing!

It's a great sound even with the use of the stock mufflers. Absolutely aggressive!


Quote:
Originally Posted by J08M3 View Post
well on OEM it does since it's all one piece, but not on the aftermarket systems. Most of the aftermarket x-pipe have you either take off the primary cats, or they have you cut the exhaust behind them and bolt on to them.
On the aftermarket X-pipes, you can choose to run a cat bypass pipe or a set of sport catalysts. The OEM pipe does contain it on one unit, but with the aftermarket options you can play with it a bit in terms of setup.

Last edited by M II; 06-08-2010 at 02:33 PM.