Outer Limits 4x4 Board

i have a 3litre gu nissan and i want to put a 3 inch straight through exhaust on it is it a good thing or a bad thing will it give it more horse power or will i lose some

If you buy a good one its a good thing, especially if you fit a chip as well.

Youll get more power, until it overboosts and then cuts power.

But illegal unless you install a cat converter in it (that is if you get rid of the original dump pipe which has the cat converter integrated into it)