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View Full Version : Exaust system ??


speedy
12-20-2007, 01:57 AM
I Need a new exaust system, whats the best out for a yfz 450 ???
I was thinking of a whitebrothers.
yfzrider45
12-20-2007, 02:17 PM
I would go with an Nmotion.......I have a full duncan (fatboy4) its EXTREMELY LOUD, but i think Nmotion does a better job!!!

Jonny
ohsobad_chevy
12-20-2007, 03:37 PM
Nmotion makes good stuff, I chose to go with a sparks pipe and I couldn't be happier. Pretty noisy, but I am pleased with the performance. :cool:
ECAYFZ450
12-28-2007, 03:04 PM
DUDE...HANDS DOWN THE CURTIS SPARKS EXHAUST SYSTEM IS THE BEST!!! IT GIVES YOUR POWER THROUGHOUT ALL OF THE GEARS!! I AHVE ONE ON MY YFZ AND I WILL NEVER GO BACK TO ANOTHER EXHAUST!!
trx400EXtreme
12-28-2007, 03:48 PM
Holy caps lock batman!!!!^^^:D no but seriously, ive heard nothing but good things about sparks.
jherbie28
12-28-2007, 06:36 PM
you cant go wrong with a GYTR-complete, made from yamaha, fits perfect.
250exkid
12-29-2007, 03:51 PM
sparks big core x-6 for a built yfz and a x-4 for a stocker
kawiefan
12-29-2007, 05:43 PM
ron woods has a killer exhaust for the yfz
ohsobad_chevy
12-29-2007, 05:44 PM
Originally posted by 250exkid
sparks big core x-6 for a built yfz and a x-4 for a stocker

You wouldn't want to run an x4 on a YFZ, they are made for smaller sport quads, such as the 250's, etc. You can get the x6 in a standard core as well and it will outperform the x4 on the YFZ.
speedy
12-30-2007, 12:31 PM
what do u thinl of the BUB exaust system ??