luciusad2004
New Member
Hey all. I currently have a b18 swapped EF hatch. For exhaust i have the DC sports headers, a 2.5" high-flow cat, and 2.5 inc no-name brand cat back with can style muffler that was on it when i purchased it. I had left the 2.5" exhaust because i was planning on boost in the future, but now I changed my mind and decided that I don't need (and probably can't afford) the power and I'm aiming to just make a reliable daily / weekend autocross car.
Anyway, my exhaust is just way to loud and I'm looking to replace it in the future and had a few questions.
I'm currently looking in to getting either an ES oval and having a cat back fabricated or purchasing the Invidia N1 cat back. Would this quiet my car at all?
I was also thinking about dropping down to 2 1/4" piping. Would this provide any benefit? It's been my understanding that 2.5" piping is to big for non-turbo applications and doesn't provide optimal flow. I also figured the smaller pipe might quiet her down a little bit.
About the cat, Should i also look in to getting a smaller cat? Is the 2.5 cat if I get smaller piping for the cat back?
Anyone have any other advice or input?
Anyway, my exhaust is just way to loud and I'm looking to replace it in the future and had a few questions.
I'm currently looking in to getting either an ES oval and having a cat back fabricated or purchasing the Invidia N1 cat back. Would this quiet my car at all?
I was also thinking about dropping down to 2 1/4" piping. Would this provide any benefit? It's been my understanding that 2.5" piping is to big for non-turbo applications and doesn't provide optimal flow. I also figured the smaller pipe might quiet her down a little bit.
About the cat, Should i also look in to getting a smaller cat? Is the 2.5 cat if I get smaller piping for the cat back?
Anyone have any other advice or input?