Horsepowerfreaks Goliath?

[kwnate]

You're right it won't make much a difference, until you slap on a big turbo, then it'll be worth it. Anything you can do to improve flow on the exhaust will increase hp and reduce heat. I'll be running a 3.5" dp straight into this 4" with my new setup. If i had 3" or even 3.5" I wouldnt make as much power. If youre not going big, the 3.5 goliath is still big and is stainless, you'll never need a new one.