Hi everyone
So I have an 05 kingquad and I blew a hole in the piston. So I'm starting to look at kits to rebuild it and have been looking into big bore kits alittle more, and more.

My first question-
How does the big bore kit work with my efi system? Bigger bore should mean more fuel, correct? So would I need to tune my ecu? Or get bigger injectors. And all said and done what kind of gains am I looking at?

Or do I stay away from all that and stay stock?

My second question-
what is a good brand to look for in pistons for my wheeler...whats a good site for parts that sell GOOD parts. I'm getting tired of eBay and Amazon selling me garbage. I would rather know the brand or the store/site itself and order directly from there.

Thanks guys any advice is much appreciated!

 

I'd stay stock.
If you want to know, call Mickey Dunlap. fourstroketech.net