What Is Harley Davidson Stage 4

Expect to feel exceptional acceleration delivering significant gains and up to a 50 increase in the higher RPM range.

What is harley davidson stage 4. In many cases it would include a larger throttle body injectors depending on the specific model. Those upgraded components feed air through a cast aluminum manifold into a larger 64 mm throttle body. We start with the increased diameter cylinder and high compression pistons as the Stage 3 upgrade kit.

Highest level performance upgrade available to provide a maximum increase in displacement compression and flow. 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. Youll feel the difference as soon as you twist the throttle.

When installed by an authorized Harley-Davidson Dealer within 60 days of the vehicle purchase compliant kits do not impact the vehicles limited warranty. The 114 Torque Cam and 117 Stage 3. Stage 3 Heads Throttle Body.

Tuners carburetor and fuel injection NOS Superchargers Turbos Big Bore and more. A stage one kit is basic air intake and exhaust all the way up to stage 4 which will be a large project such as air intake exhaust larger pistons cam and more. This would be a moderate compression big bore combination.

To start with The stage 4 kit does not come with the compressor heads. This Stage IV Kit was developed to deliver maximum horsepower from the Milwaukee-Eight engine - all the way to the redline. Harley Stage 4.

Expect to feel exceptional acceleration delivering significant gains and up to a 50 increase in the higher RPM range. That is the Stage 4 upgrade. It isnt until 4500 RPM that the Stage 4 really comes to life pouring the power on until it redlines at 6500rpm.