EJ257· Master Baiter
I've never had a smell issue with catless vehicles when driving them. It's just sitting behind them that always bothered me. Personally, I'd try save money and go catless, since creep won't be an issue, and the illegality is the same.
All things equal, the farther down the exhaust path the catalyst is located, the less restriction it will introduce, at the expense of higher emissions.WRX-maniac said:Thanks for the reply. I have never had such a hard time deciding on a downpipe. But the Xforce one is interesting. It is a bellmouth, plus I can run catted or catless. Just never heard of them before. Also, the cat is very far back on the exhaust stream. So I would I still get the same benefits of a regular catted downpipe where the cat is located closer to the turbo?