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EX400rider
12-25-2005, 06:21 PM
wat is the best s/o exhaust for a z400? Also wat is the top speed of a stock z400?
m0n3y
12-26-2005, 09:13 AM
I think the best exhaust for the z400 is the HMF system.A stock z400 goes about 74mph top speed.
trx400exxracer
12-26-2005, 11:56 AM
Yoshimura

the top pro's run them like

Doug Gust for MX
and William Yokley for xc

Even I am going to get one:eek2:
adinocr7
12-29-2005, 02:35 PM
I've got a Yoshimura RS-3 Comp Series exhaust. For the money I think its pretty hard to beat. Bone stock I could slam the throttle in 1st and 2nd gear and it would move out ok. After I put the Yoshi' on it will literally pull the front wheels right over backwards in 2nd if you don't either let off a little or feather the clutch. If you shop around online you can pick this exhaust up for around $360.00 right now.
DanTheMan
12-29-2005, 03:58 PM
theres always going to be diffrent opinions on this matter... i sold my yoshi not to long ago and bought a sparks... bought pipes sound sweet... the yosh had more power up top but the sparks had a lot more power down low to mid... im still playing with jetting and all... I hear HMF is a really good pipe too... so it all depends on where you want you power
Silverfox@C&DRacing
12-29-2005, 04:14 PM
Hmf is a good slipon exhaust and decently priced.
12-29-2005, 08:14 PM
Per dirt wheels ct dynoed with most hp by like .4 or so. I went with pro circuit it was second on their shoot out. bike runs way better.
ALLUWANT
12-30-2005, 09:14 AM
ive always heard yosh is the best for z400. my buddy is runnin there full exhaust and it helped his a lot