why get custom? it wont help power wise.. the 2.5 inch pipework on the manifold is to big anyway if im really honest but thats how there made.. the back box is being added to a 2.25 inch cat back system that will be the only box on the car.. i got it as its the style i want, everyone has cannon style exhausts i wanted the oval back box with that size tailpipe so why buy a custom built one for £200 when i can get one ready built for £50??
if your ging to tell me to loose somthing (going to sound like a cock here) but please at least explain as to why somthing wont work ect.. rather than just say get rid of it..i always listen to peoples points of veiw but i also have my own