Making Serious Power - Predator 670 Stage 4 Kit
If you're looking to squeeze every last drop of performance out of your V-twin, the predator 670 stage 4 kit is basically the holy grail of upgrades. It's not just a simple bolt-on project that you finish in an afternoon over a couple of beers. We're talking about a total transformation that turns a reliable, workhorse utility engine into a high-revving, fire-breathing monster. Most people start with a Stage 1 or 2, but once you get a taste for that torque, it's hard not to want more. ...