Tri-Star, I think you have the C320 right? I think that's a 3.2L V6 that made 215 hp and 221 lb-ft stock. The SI chips says it does a lot to that engine, in the range of 20 - 30 so maybe you'll be making 240hp. If so you will feel that. I would put on a Green or K&N filter too. Hard to believe really but maybe the C320 was seriously detuned. I went with the 93 octane code because I use super all the time anyway. That just gives the tuner the opportunity to push the settings a little more. The JLevi/Speed Innovation ECU is a re-flash so (1) you pull out your computer, very easy, and (2) FedEx it to the tuner, then (3) they overwrite the stock fuel and spark maps and throttle position sensitivity, maybe they do more, and then they (4) over-night it back to you and (4) you just snap it back in. You don't buy a new computer and you don't need the dealership for anything. In fact, once the code is rewritten it is near impossible for them to even know without reverse engineering it so it has no effect on your warranty. Nor is the computer "sealed" with sticker like Ford's where if you pull it out you void the warranty. At $500 it's almost a no-brainer if you want a little boost.Tri-Star said:Ok i've read through the post and this seems very interesting but how exactly does it work? Do you replace an ecu chip or have the ecu reflashed? I Once this ecu is reflashed is there anything additional that needs to be done? What would my total HP be for a c320 with this ecu chip? Would I also need to have this installed by a MB dealership?
Also, is there an option to have a S/C put onto my engine? If so where could one be found and how much does it usually run? I'm worried about having additional problems after modding my car.