Check the listing for details. AMR RACING CDI Rev Box High Performance Module for Yamaha Raptor 50 04-08 Stage2. Condition: New. Listed at 109.95 USD. AMR RACING REV BOX DETAILS This Part Fits the Following Machines:Yamaha Raptor 502004-2008STAGE 2 AMR PERFORMANCE CDI REV BOX: - Increased Rev Limit! - Increased Horsepower! - Hotter Spark! - Improved Throttle Response - Easier Starting - Works with or without Digital Dash features. - Maximizes your motor's potential. - Easy Plug & Play application, NON-Programmable, installs in minutes. (no connectors or splicing needed) - Will not Damage motor, designed to work well within motor's tolerance) - More Aggressive Timing Curve than stock. - Eliminates stock ignition "cut out" - Industry Leading 2 Year Replacement Warranty. ***DUE TO HIGH VOLUMES OF ORDERS SHIPPING FROM OUR WAREHOUSE, MOST ORDERS CAN TAKE UP TO 5 BUSINESS DAYS TO SHIP, NOT INCLUDING WEEKENDS OR HOLIDAYS. THANK YOU FOR YOUR PATIENCE.***Stage 2 vs. Stage 3: Basically the Stage 3 has a more aggressive timing curve vs the stage 2, and a slightly higher rev limit. Stage 3 users generally notice more low end throttle response. Stage 3 works great on stock motors, even better with after market exhaust/air/ect. Both Stage 2 and Stage 3 operate well within the engine's tolerances. Stage 2 is recommended for bone stock setup with no intentions of adding any aftermarket exhaust or air intake. Stage 3 is recommended for slightly higher performance on a stock setup, and highly recommended for users with aftermarket exhaust/air or have plans for them in future.AMR RACING REV BOX DETAILS This Part Fits the Following Machines:Yamaha Raptor 502004-2008STAGE 2 AMR PERFORMANCE CDI REV BOX: - Increased Rev Limit! - Increased Horsepower! - Hotter Spark! - Improved Throttle Response - Easier Starting - Works with or without Digital Dash features. - Maximizes your motor's potential. - Easy Plug & Play application, NON-Programmable, installs in minutes. (no connectors or splicing needed) - Will not Damage motor, designed to work well within motor's tolerance) - More Aggressive Timing Curve than stock. - Eliminates stock ignition "cut out" - Industry Leading 2 Year Replacement Warranty. ***DUE TO HIGH VOLUMES OF ORDERS SHIPPING FROM OUR WAREHOUSE, MOST ORDERS CAN TAKE UP TO 5 BUSINESS DAYS TO SHIP, NOT INCLUDING WEEKENDS OR HOLIDAYS. THANK YOU FOR YOUR PATIENCE.***Stage 2 vs. Stage 3: Basically the Stage 3 has a more aggressive timing curve vs the stage 2, and a slightly higher rev limit. Stage 3 users generally notice more low end throttle response. Stage 3 works great on stock motors, even better with after market exhaust/air/ect. Both Stage 2 and Stage 3 operate well within the engine's tolerances. Stage 2 is recommended for bone stock setup with no intentions of adding any aftermarket exhaust or air intake. Stage 3 is recommended for slightly higher performance on a stock setup, and highly recommended for users with aftermarket exhaust/air or have plans for them in future.