Hi all, Keeping the stock GT3576R is there much benefit in going full exhaust versus just replacing the CAT with a bolt a proven in item? I am thinking a full xforce exhaust, 4" dump, 100cpi cat and 3.5" mild steel cat back. Mods are: PW Stage 1 cooler kit, Herrod intake, ID1000 injectors plus either cat only or full exhaust. What are the negatives of going full exhaust? Will boost control be an issue? The benefit of a full exhaust appears to be a bucket load more torque which is worth more to me then a high kw number. Cheers