Hey whats up guys. I have a question. I plan on keeping my Z NA and drivable. So far the mods i have done are in my sig. My question is this... are the crawford hfc's worth it. For those of u that has it on... does the car get louder. Keep in mind I have dc headers and nismo exhaust on already. I am trying to keep the car street legal as I can. I know the crawford hfc's arent legal but I don't want to attract attention with them on from the popo. I heard that u get 7-10rwhp from them...is that true?

 

So many posts here. Have you done a search, this type of question has been asked dozens of times.

My eshaust system is Crawford Headers, Cats, and Invidia an G200 dual. Would I do it again? YES

The exhaust note is not loud, and you will feel the difference. The stock cat is a double chamber design and very restrictive.

Lou

 

And whats the designed of the crawfords?

 

I have crawford cats on my car and the answer is yes, you will feel a difference especially since you already have the headers and the exhaust. It also keeps the noise down some. I say, do it!

 

http://crawfordz.com/highflowcats.htm

Single chamber.

 

Thanks alot you guys.

 

i just got a set of used ones. i will install them this weekend

 

what di you think of them?