Hey all, I was tuned a while back with my cam gears set at -1,-4. Ive seen a lot of people going with the -3, -3 combo. I was wondering if setting my gears to -3, -3 will screw up my tune at all?? I have the utec with a map sensor installed too. Any help would be awesome!

 

Your AFR will be all ove rthe place if you cahnge it, not not enough to do damage, but it's just not optimal. At least it was what happaned to me after I changed to -4/-1.5. You can try it with -3/-3, if you like teh power and if you can live with the idle, you can then start re-tune your car. It won;t take too long to retune it.