Jump to content


Factory catback restrictive?

Recommended Posts

Just wondering what power the factory cat back can push? I have 4"dump-5"cat, but I am quite happy on how quiet it is off boost and cruising around. 


Currently making 375rwkw but getting it set up for e85. Just wondering if I should replace the factory cat back? 



Share this post

Link to post
Share on other sites

once you go e85 you will be around the 400kw mark. so most guys do get a 3.5inch at least. I would say it will hold you back.


otherwise if you happy with low noise around town try the varex mufflers but not cheap. 

Share this post

Link to post
Share on other sites

@Slowxr6t if you want a response from people in an old thread, you should tag them like I tagged you. That way they will receive a forum notification and in some cases an email notification too.


You literally type the @ symbol and then start typing their name. It'll come up with a list of members, and when you see their name just click on it.

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Donation Box

    Please donate to support the community.
    We appreciate all donations!

FordXR6Turbo.com Powered by Invision Community

  • Create New...