Quote Originally Posted by Peter-E36
I haven't asked them for a quote directly but know of others who got quotes which were the same price as a good brand cat-back designed specifically for the car. I'd be more comfortable with that as the company will have had some R&D designing it, and there wouldn't be any issues like the space between the tips or anything else as it's just bolt on.

@Venom: Is that the resonator you deleted with a straight pipe? Results?
Souhans use magnaflow rear silencers off the shelf(which you choose) and then make up pipes between it and the cats, not much R&D involved to be honest it's not exactly rocket surgery so the question there is do you want a magnaflow sound or otherwise.