I'm looking into getting an exhaust and many people have suggested that i get a custom one made. So how much have you all payed and what diameter piping do you have?
Also what diameter pipping and muffler would you suggest for myself? I'm planning on getting a gt2871r. Thanks

 

go 3" and it was 650 with bends, welding, hangers, muffler, and cat

 

The Milltek exhaust will give you all you need. Custom pieces do add benefit, but do you need the extra 2hp it might make?