One of my friends said that he knows somone that bought an 07 wolferine and he told me that the low end was bad..is this true??

 

low end?
like low end torque?
or bottom end of the engine?

Bottom end, parts are parts, should be covered by the dealer
low end torque, while not the greatest can be improved by a clutch kit
and is this a 450 or a 350?

 

low end torque and its a 07 wolverine 450

 

IMO the low end torque is adequate but like ctateusa1 said can be improved with a pipe and clutch kit. I think if any power area is lacking it's the top end.

 

which is the best kind for both clutch and pipe? im new to atv's and how much will that cost??

 

I would get the Epi clutch kit.As far as exhaust there are two choices that I know of
HMF-louder, cheaper(225.-250.)
GYTR-quiter, more expensive(297.00 delivered-350.00 at dealer)
I dont know which one makes more power though.
If you do replace the pipe, and then you have to do a jet kit at the same time to allow more fuel into the added airflow. I would suggest to get a high flow air filter.

 

wow thats gonna be alot of money! lol

 

The epi clutch kit is about 120.00 plus labor if you have to pay someone to do it.
If you want to try it yourself I would suggest looking at this link right here--->epi clutch kit install instructions.
I wrote it after I installed mine, read it all because there are a few really good posts on it and a lot of good information from other people as far as how they liked theirs and problems and solutions with the kit.

 

My wifes is an 06, same bike and its low end is fine. It will climb around in anything.

 

I have about 550 in performance mods done right now with plans to eventually spend another 500 or 600. at rebuild time to replace with a performance cam and hi comp piston or a big bore kit if they have one then.