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2013 Moto En

726 Dirt Bike Applications Intake Duration Exhaust Duration Model Year Lift (mm) (mm) Lift (mm) (mm) P/N Honda (Cont.) C RF450R / Stage 2 2007 10.1 248 8.8 270 13-9083 • Single-cam motor • Excellent midrange and top end increase • Improve Throttle response • Uses stock auto-decompression mechanism • Uses stock valve springs C RF450R / Stage 3 2007 10.4 254 9.1 265 13-9084 • Single-cam motor • More top-end power then Stage 2 • Will work with supermoto and big bores/strokeres • Uses stock auto-decompression mechanism • Uses stock valve springs C RF450R / Stage 1 2008 9.6 238 8.8 270 13-9095 C RF450X / Stage 1 08-13 • Single-cam motor • Excellent for bottom-end • Uses stock auto-decompression mechanism • Uses stock valve springs C RF450R / Stage 2 2008 10.1 248 8.8 270 13-9094 C RF450X / Stage 2 08-13 • Single-cam motor • Good midrange and top end gain • Uses stock auto-decompression mechanism • Uses stock valve springs C RF450R / Stage 3 2008 10.4 254 9.1 265 13-9096 C RF450X / Stage 3 08-12 • Single-cam motor • Single-cam motor • More top-end power then Stage 2 • Will work with supermoto and big bores/strokeres • Uses stock auto-decompression mechanism • Uses stock valve springs C RF450R / Stage 1 2009 9.6 238 8.7 248 13-9121 • Single-cam motor • Excellent for bottom-end • Uses stock auto-decompression mechanism • Uses stock valve springs C RF450R / Stage 2 2009 10.1 248 8.7 269 13-9122 • Single-cam motor • Good midrange and top end gain • Uses stock auto-decompression mechanism • Uses stock valve springs C RF450R / Stage 3 2009 10.4 252 9 265 13-9123 • Single-cam motor • Single-cam motor • More top-end power then Stage 2 • Will work with supermoto and big bores/strokeres • Uses stock auto-decompression mechanism • Uses stock valve springs C RF 450R / Stage 1 10-12 9.6 238 8.7 248 13-9131 • Improved torque below 9000rpm • Improved peak horsepower over OEM cam • Uses stock auto-decompression mechanism • Uses stock valve springs and rocker CRF 450R / Stage 2 10-12 9.6 238 8.7 248 13-9132 • Improved power from 6,000 to rev limit • Uses stock auto-decompression mechanism • Uses stock valve springs and rocker C RF 450R / Stage 3 10-12 10.4 252 9 265 13-9133 • Best suited for engines requiring more breathing capability • Uses stock auto-decompression mechanism • Uses stock valve springs and rocker XR600 / Stage 1 88-00 8.8mm 258 8.8mm 258 13-9004 XR650L / Stage 1 93-12 8.8mm 258 8.8mm 258 13-9004 • Single-cam motor • Excellent midrange and top end increase • Uses stock valve springs and rockers • Does use stock auto-decompression mechanism


2013 Moto En
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