I wanna know what type of full system exhaust would get the best HP gains...I was looking into HMF full system and max hp gained is 5hp, but then I also heard pure polaris slip on is good but Im not to sure if they have a full system...Anyone give me some info and things you used on your predator

 

As for the exhaust I will tell you in my opinion what is the best. Ok.....as for the best performing full system, is the HPD Powermaxx pipe, it has a stainless steel header, and will give 5+hp gains. This one comes in a race or quiet version, with the race version being the best performing of the two. This pipe cost $450. The next in line is the yoshimera full system pipe. It is a nice setup too, not sure on the gains, but it isn't as good as the HPD pipe. It runs about $470. As for the White Brothers/Pure Polaris pipe, it is a slip on. It is the best pipe for the money. It gives good performance, and is cheap too. It runs about $250(maybe a little less). I personally, think the wb pipe is as good as the yoshi pipe, but it isn't a full system. I got the wb pipe, because I think it gives about 3hp, and for the extra $200, I wanted something else than a full system. But bottom line, for the most power and performance all the way through the rpm range, the HPD PowerMaxx pipe is #1, hands down.

 

I think the full system HMF gets 9 hp, thats what it says on there site, if im reading it right its saying 5 hp for the slip on then 4 more with the full system, correct me if im wrong.

 

It may SAY that......but I would think a little differently. Believe me, if you want the hp, get the HPD pipe.

 

Has anyone tried the Pro Circuit T4 yet? I installed the T4 and a Ti4 on a friends Z400 and a KFX400. I tuned the carb to match the pipe with great results. They sound good and have nice power gains. I see that exhaust is offered for the Pred also. Just wondering if any one tried it yet.

 

It is offered, but I think it costs like 700 dollars. Still if you have the money, hpd is the best hp pipe.

 

for the hmf its 5hp for the full kit and half that for the slipon the banshee gets that much from hmf though.