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doc-bones
12-28-2005, 06:00 PM
What is the best quiet series performance pipe for yfz450?
infantry317
12-28-2005, 06:45 PM
According to dirt wheels, Dubach Dr.D slip-on
Splatter Matter
12-29-2005, 06:49 AM
The Dr.D exhaust is a great exhaust it never let me down.
Wandell
12-29-2005, 08:04 AM
FMF makes a quiet series.
ACEwrench
12-29-2005, 08:07 AM
i guess the CT pipe has alot of hp too.....and since is has a disc set up its pretty quiet...it all has to do with personal pref. though
pick the one YOU like a go with.
crayfz
12-29-2005, 09:43 AM
HMF QRS
jlhughes750
12-29-2005, 12:39 PM
the Dubach (Dr. D) was awsome....only down fall was that lookin at it from the rear its center mounted.....and after I got the rear suspension dialed in, the caliper hit the can......with my Sparks exhaust its mounted off center and does not hit...........but its not really quiet!!!!

later, J
ex kid
12-29-2005, 05:09 PM
Originally posted by jlhughes750
the Dubach (Dr. D) was awsome....only down fall was that lookin at it from the rear its center mounted.....and after I got the rear suspension dialed in, the caliper hit the can......with my Sparks exhaust its mounted off center and does not hit...........but its not really quiet!!!!

later, J


hey JL, who has good deals on Dubach around here?
jlhughes750
12-30-2005, 08:05 AM
Originally posted by ex kid
hey JL, who has good deals on Dubach around here?



I got mine from Doug D directly.........way back when the YFZ first came out....Doug Dubach was an important part of developing the first yz 400's and 426's with Yamaha... he's a championship MX racer!!!
ex kid
12-31-2005, 01:46 PM
Originally posted by jlhughes750
I got mine from Doug D directly.........way back when the YFZ first came out....Doug Dubach was an important part of developing the first yz 400's and 426's with Yamaha... he's a championship MX racer!!!

I've been looking into one for my TRX, thanks dude
prey2none
01-03-2006, 05:38 PM
We run the HMF Qrs on both our YFZ450 and Z400 and the low mellow tone is great and they are great over the stockers for power increase. Great looking pipes at great prices and the guys at HMF are so helpfull. Good luck
bigstorm
01-09-2006, 04:00 PM
pro cicuit quiet core. its a very nice quiet sound.

-storm