Acapulco Bill

For C250 CGI owners, RaceChip offers substantial performance increases, especially in torque. Here is a link:

https://www.racechip-usa.com/chiptun...BlueEF--150kw/

Knightmare69

I think they're the same company that makes the boxes for TMC tuning. I wonder if they're much of a difference in the tune. I see racechip offers different stages seemingly just through the use of a faster/bigger processor?

Amin Skaf

I wish there were dyno numbers from these tunes. The only dyno numbers provided were from BMS....and they showed an 8hp gain on WOT.

Knightmare69

At least from TMC, they said they've dyno'd which is how they got the final figures they quote on their site. Most if not all tuning boxes currently give out pretty much the same figures. If you really wanna see a dyno, search for my thread, I actually had the car dyno'd and posted the results.

Jon@BMS

Just as a tip the tuner boxes that alter MAP & TMAP sensors only for this platform don't work. Tried it along ago. The only solution that works is manually controlling the wastegate solenoid as we do with the JB+. The problem with tuning this application is the turbo is so undersized there isn't much left on the table via aftermarket tuning. So don't expect much.

Where power can be increased is at lower RPM and the JB+ has proven to do a very nice job of that.