Renntech ECU / Sprint booster or not?


I have been debating on buying a sprint booster but have read many comments from people calling it "snake oil".

I personally LOVED it on that engine , way before I started adding bunch of mods to it ..

Thank you for the kind words, yes it came with it plus.. when I called Bob Brady at Renntech before I bought the car , his words were " That car has everything we offer for the CLS " , car came with the ECU / TCU pulley, Renntech throttle body, ELM , Carbon fiber airboxes, long tube headers, renntech full exhaust mufflers, rear carbon fiber diffuser, Renntech front brakes( 16" rotors ) and rear brakes , last are the 20" renntech 3pc wheels !! those are the only item that will have to change only because chrome is not my first choice ! top it off I Bought the CLS at 34K miles




