I got a deal to buy this hdp pipe and silencer from this guy.. and my 4-wheeler is completly stock.. the pipe will fit any trailblazer 250 from 99-04 and my quad is 2004.. and I was wondering if i will need to rejet my 4-wheeler?If i do i cna just call hdp and get them to send me one the right size. And if you go to http://www.hpd-inc.com/frames/Index.htm and then exhaust and exhaust again.. some of the pipes for the trailblazer 250 say clutch kit required. So will i need to buy a clutch kit for it? The guy said that he did not have to rejet his and it will work fine without a clutch kit. Some other forums people say i will have to rejet it. But i dont know.. Plz help me out

 

You will be ok to call HPD for jetting specs and you will need a clutch kit for that pipe it consists of a HPD red/yellow primary spring,gold Polaris secondary spring and a set of S58 shift weights.Their clutch kit is around $90 but you WILL need it to get you TB to have any lowend at all.I tried several differant combonations and what they recomend is the only thing that really worked.

 

So i will have to get the clutch kit?.. How much faster will this get me going all 2gether with the clutch kit and pipe?

 

4-5mph faster i would say

 

Yes you will need the clutch kit.And TBsleeper may be about right on the topend speed.All I know is my sons TB is a little slower than my 500 but not alot.

 

If anything you must rejet the only way to get full advantage of you pipe is to rejet and a clutch kit. It is also i good idea to get a K&N.