Does it make a difference performance or exhaust wise if you have a hose going from the air intake to the front of the car so that fresher air is going into the engine???
I put one on today because ive seen this on cars before... is it worth it??
Dont necessarily take my word for it, but from what i have read, you can get quite nice gains by performing this mod, both in terms of kw and improved response throughout the rev range. What car have you got?