I run the edge comp box, it is awsome especially with the on the fly setting option. As for exhaust, I guarentee that most guys will say they have a straingt pipe when they really don't have a true straight pipe. A true straight pipe is when the back of the turbo has a 4 inch outlet, most guys have the stock 3 in and about an inch of 3 inch piping after the turbo before it turns to a four.