mp127

I was hitting 0-100kmh in 7.2 secs with stage 1, which I was very happy about. I installed the tt225 injectors and got tuned for 1+, hoping to get into the high 6’s. Now I’m hitting 8.3. I don’t understand what could be the issue, I hit the 7.2 when it was -3 degrees out and 8.3 when it was +5 degrees but with a 20hp difference there’s no possible way an 8 degree difference in temperature is taking a whole second off. Anyone else ever ran into this issue or can tell me what could be happening? Yes I got a smoke test and they fixed the leak and it’s still hitting 8.3.

Cybersombosis

Do you have multi tune from APR on your ECU? Sounds like you are running a stock tune.

mp127

Nope no program switching just flashed to 1+

Cybersombosis

I’d take it back to the dealer who loaded it.

Cybersombosis

Actually how did you come by this stage 1+ tune? Did you buy it second hand then adapt is to your car’s immobilizer using VCDS?