WHAT ARE THE VANCE AND HINES DYNO NUMBERS?
Here are the Vance and Hines numbers and their relationship to the stock numbers (with the stock YZ250F horsepower numbers in parentheses). RPM HORSEPOWER GAIN/LOSS 7000 24.0 (24.1 stock) -0.1 8000 29.2 (29.0 stock) +0.2 9000 32.2 (32.1 stock) +0.1 10,000 34.5 (33.1 stock) +1.4 11,000 36.4 (35.5 stock) +0.9 12,000 37.2 (36.4 stock) +0.8 WHAT IS ITS DURATION ABOVE 34 HORSEPOWER? 3200 rpm. The Vance and Hines slip-on hit 34 horsepower from 9800 rpm and stayed there to 13,000 rpm. The Vance and Hines pipe stayed above 34 horsepower for 900 rpm more than the stocker WHAT IS THE PEAK HORSEPOWER? 37.3 horsepower at 11,800 rpm. The stock pipe made 36.6 horsepower at peak. WILL IT PASS THE AMA SOUND TEST? Yes. The Vance And Hines XCR slip-on produced 94.3 dB, while the stock exhaust produced 94.5 dB. WHAT’S IT COST? $299.00 (XCR Slip-on), $849.95 (TiPro complete system), $499.00 (stainless/aluminum complete system). WHOM DO I CONTACT? www.vanceandhines.com or (562) 921-7461. MXA TEST RIDER COM
