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: Grave's header with check engine light Carbon Monoxide 10-06-2006, 01:37 AM Hey guy's just wonder if any of yous have a Grave's full exhaust or slip on with the Grave's header and have a check engine light on cause of the removal of the EXUP servo in the factory exhaust header. and what you guys did to keep the engine light off. please help. hotrodman 10-06-2006, 09:30 AM Yep, I have the Graves full system on mine. I left the valve actuator but not the valve on the bike, hooked up. Have had no problems with any check engine lights. Tracker 02-04-2007, 11:52 PM You probably have code 17 on your bike? exup removal.... | ||