Newbie here. I've mentioned I'm interested in exhaust mods and intake mods (z tube, K&N) - and I appreciate the great advice. I mostly wrench motorcycles nowadays and intake and exhaust mods on my Ducati motorcycle require remapping the ECU to avoid leaning the engine out too much. How does this work on the G? If my G35 is breathing better out of both ends, do I need to have the ECU remapped to avoid toasting my valves? If so, how/where do I do it? Thanks!

 

TechnoSqaure is your answer.

I suspect you're already running lean right out of the box like many of us.