I'd go with the 90mm. No point in having any airflow restrictions. The tuner should be able to take care of idle,part and wot with either. I assume you're using a chip of some sort?x2!
.....sweet!.....if i get anywhere near that on a safe tune ill be extremely happy!....especialy as an afterthought!
id install it this weekend!,but i have to wait for the injectors and maf,he told me to get a pro m draw through maf,80-90,said to call them and ask wich has the best drivability?,anyone have experience on this?
but i tell you that im exited now!,guess ill post pics of the install soon enough...