Will give increased horsepower and torque. This kit is a TRUE BOLT ON, comes complete with A new Cylinder! Keep all your orginal parts!
Aluminum cylinder with a nickel carbide coating. Everything you need to bolt it on and go! No machining is required, simply bolt on and Blast!! We have a full line of BIG BORE KITS. The item "YAMAHA YFZ450 478CC 98MM JE BIG BORE CYLINDER & PISTON KIT 2004-2014" is in sale since Monday, November 13, 2017.This item is in the category "eBay Motors\Parts & Accessories\ATV, Side-by-Side & UTV Parts & Accessories\Engines & Components". The seller is "atvunlimited" and is located in Sunbury, Ohio. This item can be shipped worldwide.