I purchased a 2007 wolverine 450. My question is, what can I really expect from a slip-on pipe, air filter, and jet kit? I'm not expecting 30mph wheelees, but, what should I expect? Worth the money? Thanks in advance. And yes I'm loving this thing!!!!!!!! Leigh

 

If everything is done correctly, like the jetting after the parts....you might get by for 400 bucks, and gain maybe at most, 10%(2hp or so). Only you can determine if the tradeoff is worth it.

 

You can expect about a 15-25% power gain. It will make a huge difference in the way it runs on both the bottom end and the top end. You could also change your springs in the tranny to get more power also. HMF makes a great pipe for that bike and you can get the whole kit to put it all on. You will most likely need to do some air box mods if you do the pipe. Just be careful on what mods you do for your normal riding conditions. good luck and ride hard

 

I appreciate both of your replys. Do either of you have the wolverine and have you done the mods on them? If not, I'm really looking for someone who went from stock to these mods and what their thought were.

 

When I did the pipe, filter, jet kit I ended up with about 8-10% gains it felt like to me. And it cost me about 425 for the gytr pipe, k&n filter and dynojet kit.

 

I hear the yamaha pipe is very loud as compared to the hfm. True? Also can you feel a 10% increase. I don't mind the money and work, just looking for a bit more power and top end. I do mostly hill and trail riding.

 

I raced a buddy of mine who also has a wolverine 450 both before and after I did my mods. When we were both stock, we were running pretty much dead even. After my pipe, clutch work, jets, and filter, I pull him off the line and keep pulling all the way until I top out.

He also has a grizzly 700, and I raced that before and after too. Stock, he smoked me from start to finish. Now, I get him off the line up until 25-30 and he pulls about 10' ahead of me, and slowly pulls away because he tops out at about 63 and Im done at about 59.

Overall, I definitely think its worth it. This was my first time really modding a quad, so I didnt know what to expect in the performance gains....Im happy with the outcome, and wouldnt change a thing if I were to do it over again.

If you want to hear the difference in the sound of the pipes, go to youtube and type in Wolverine HMF, you should find a few sound clips of 450's with the HMF pipe. Do the same thing for Wolverine GYTR and Im sure you will find a few of wolvys with the GYTR pipe. I listened to both before I decided to go with the HMF, I liked the tone a little better.

 

What is "clutch work" on this machine and what does it do?

 

Check out this post, there is a bit to read....but it covers all the work done to my quad.

http://forums.atvconnection.co...529110&highlight_key=y

 

I actually think the GYTR is a little quiter but I am not completely sure. I have not have a chance to compare them in person so i dont know.

Yes I can definetly feel an improvment in the power throughout the band.

The clutch kit from EPI is for bottom end torque. If you want more top end talk to hauck racing and they will remachine your factory primary clutch to give you more power throughout and a little more top speed.