[450.BRYAN.]

I have a 2005 trx it has a cylinder works high competition kit , hot cams stage 2 and new kibble white valves (stock bottom end) i want more power from it want should I do next ??

 

[Bullvine rider!!]

Power is in the head, ported head will really open it up. Make sure someone with lots of experience porting heads, and is very good does it, (dont cheap out) so choose wisely, cuz a bad port job will do the opposite obviously.
This will be my next mod on my 06. But its not cheap. You could also do a big bore kit, the 04/05,s have a good platform for big power.
Keep in mind the bigger the bore the more stress on the cylinder. Me personally i stick with stock bore. But you can do a 470 ish bore kit and keep longevity on the cylinder.
But the head is where its at my friend.

 

[Bullvine rider!!]

I assume you have a full aftermarket exhaust, with an airintake, and jet kit correct? Because going from stock exhaust, filter, jets to a kit will also give more power. What do you have for sn exhaust, air filter, and whats your jet size?

 

[jeremybertrand47]

For low budget power switch sprockets out