Well if you think it is a wax build up, use some dish liquid "dawn,joy,etc." mixed with warm water and it will cut right through that waxy build up!!

1998.5 CSVT #3617 K&N Custom Intake Custom 2 3/4 Magnaflow cat back Ram HD Power Grip Clutch Energy Suspension Inserts Bosch Platnium + Bf-Goodrich G-force radials "KDWS" Alpine deck CDA-7863 Boston mids More to come: Stock Sucks!!!!