steve123
01-21-2008, 11:21 PM
You can cross reference a 525s to the 450mxr and see if the part # are the same, and check the other makers see if they carry 525s pipe. FMF makes a couple of slip-ons for the bike 4.1 and Q/4. Rockymtn.atv for under $280 I think. As well as the power bomb header for $199 from FMF. The 4.1 will give you the most power but not by much. The Q/4 is quieter and they are both about 4.5 lbs. lighter then stok according to FMF, and they allso told me that Q/4 is quieter then stock. I don't know if I would go that far, thats what I have. Wanted something a little quieter then the HMF full on my 06 Outlaw 500/NR520.