4" Cutout?

http://www.ebay.com/ebaymotors/Badla...Q5fAccessories
Last edited by MTBSully; Jan 19, 2009 at 10:23 PM.
depending on your muffler you may or may not see HP gains, but the sound is wicked
I see 1HP open v's closed with my 4" system using a Magnaflow race muffler.
I use a DynoMax 4" cutout and DMH 4" E- setup.






