Reviewed By Mike S (Rapid City, SD) Reviewed for a 2008 GMC Sierra —5/28/2009 8:19 AM
i purchased the mass-air flow sensor hoping to gain more torque. no difference off idle to 3000 rpm but after the 3000 rpm range look out it realy comes to life. it works well with the k&n FIPK intake, throttle body spacer and edge fusion programmer. hate to turn so many r's to pull my trailer. should have bought a diesel.