I would recommend 60mm piping which is about 2.37" as opposed to a 2.5". I have a MMW header with skunk2 exhaust (60mm). I added an aero ar25 resonator and a vibrant ultra quiet resonator in addition to the one that came with the exhaust. Sounds nice with a low rumble but noticeable on wot. Also, the Invidia is 60mm ID not 2.25".

Pete, I havent forgotten about the springs. This is my first post back from my hiatus of almost 3 months. I am planning on getting them installed around mid to end Feb. Can you still do it?

 

yes i can still do it....

 

Thanks Pete. How hard can tuning be? Gotta do alot of learning n reading huh.lol So the AEM F/IC is what i shuld save up for? got it