Aftermarket Assassins 2022-Up RZR Pro R 4 Cylinder Header Pipe **5-10 Day Lead Time**

  Looking for a header to complete the look and performance of your AA slip-on exhaust?  Then you need the AA stainless steel Pro R header!  The OEM header is an odd 2 into 2 into 1 design and has many areas to improve upon.  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.  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 tur