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Aftermarket Assassins Header Pipe For 2022+ RZR Pro R
 Fits all 2022-Up RZR Pro R 4 Cylinder models
- Looking for a header to complete the look and performance of your AA slip-on exhaust? Â Then you need the AA stainless steel Pro R header! Â The OEM header is an odd 2 into 2 into 1 design and has many areas to improve upon. Â We set out to make a functional header that looks great.
- Nearly 6RWHP peak and over 4 RWHP max gain over the stock header when used with AA ECU flash and AA slip-on exhaust. Â This is nearly 8-9 crank horsepower gains at 60mph and does not lose any bottom end power.
- Excellent low end to top end performance
- Works great with our level 2 tune, clutch kit & other performance products
- Baseline(OEM header) was tested, then we quickly swapped our final header design in place to show the most consistent/real gains in the same hour of each other.
- Engineered to have equal length runners into the collector
- Matches our slip-on exhaust perfectly
- Stainless steel stepped header design for improved flow and longevity
- Hydroblasted finish with rust inhibitor looks great and turns bronze with heat
- Does not use factory heat shielding and should only be used with a slip-on exhaust with no catalytic converter
- Made in-house at our facility in the USA
- Extremely easy installation, bolts in like factory using OEM gaskets/mounting
- Header includes a new gasket where it meets the cylinder head
- Why the AA header over others? Â Â We design, build, and ship everything in house. Â Our header design has straight runners and goes around the frame rail like OEM which simply makes power. Â Other headers may look great and run inside the rail, but they will not perform well because of the sharp bends off the head.
The AA stainless steel Pro R header is designed for all 2022-Up RZR Pro R 4 Cylinder models, offering nearly 6RWHP peak and over 4 RWHP max gain over the stock header when used with AA ECU flash and AA slip-on exhaust. It ensures excellent low end to top end performance, works seamlessly with other performance products, and is engineered for equal length runners into the collector. Made in-house in the USA, it features a hydroblasted finish with rust inhibitor, easy installation using OEM gaskets/mounting, and includes a new gasket where it meets the cylinder head. Built with straight runners for optimal performance, this header stands out for its design, performance, and quality.
 **2-5 Day Lead Time**
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