What Is Harley Davidson Stage 4

This is the stage that really puts the cherry on top.

What is harley davidson stage 4. Stage 4 bikes are pretty rare on the roads because such upgrades give you huge power but your bike will lose the rideability. Expect to feel exceptional acceleration delivering significant gains and up to a 50 increase in the higher RPM range. All of the gaines are in the upper end of the powerband.

So before you opt for one of our legendary Stage 1 2 or 3 Full House Harley upgrades be sure you know what it is you want when it comes to the performance of your Harley-Davidson. Stage 1 is just air and pipes stage 2 is a cam upgrade. Along with larger throttle body and injectors you will be needing more headwork than what you have done in stage 3.

We start with the increased diameter cylinder and high compression pistons as the Stage 3 upgrade kit. That is the Stage 4 upgrade. Ideal for riders who want the absolute best performance upgrade available.

This would be a moderate compression big bore combination. Tuners carburetor and fuel injection NOS Superchargers Turbos Big Bore and more. I would think with a stage 4 kit the 259E cams 101 higher compression pistions Polished and ported heads 58m throttle body high flow air cleaner fullsac DX pipe and SE tuner I would think this should be closer to 118hp and.

Youre looking at high-flow cylinder heads and the Godzilla of all throttle bodies. It isnt until 4500 RPM that the Stage 4 really comes to life pouring the power on until it redlines at 6500rpm. Stage 3 Heads Throttle Body.

Stop by and see the service dept for all your performance needs. It includes headwork and more cam than a Stage 3. This is a basic explanation and you should reference a Harley dealership or the HD website to get all the specifics for each stage kit.