what size resonator ( inlet / outlet ) it put in 56s to replace removed resonator. i planning a custom exhaust using modification of stock stage 1 system.

 

Please use the search function. This topic has been discussed so many times.[/COLOR]

 

this site has a search function?

I would have never known based on the questions asked daily here!!

I kid....I kid....

 

tried exhaust pipe size and stock exhaust pipe diameter - - came back no results. thanks for the help !

 

the forum searches aren't the best.

on google.com use
"site:www.northamericanmotoring.com exhaust diameter"

its something around 2.1-2.2

easiest way is to take a string, wrap it around the pipe diameter, then do circumference = 2*diameter

Regardless, its not a standard size of 2" or 2.25", so you'll need a sleeve if you're welding an aftermarket resonator to a stock exhaust

 

The other issue is when I search and find 3 threads with answers like this until I find the right answer

 

2.25 is the closest common size that will weld up without being a PITA. That's what I used for my mid section.

 

I did this with my custom exhaust and got a 3 inch, but got the longest resonator I could find to cut down on drone. I ended up using a magnaflow version because it was (14 inch) but noticed many on NAM use vibrant which was significantly shorter.

 

circumference is pi*diameter, so 3.14 instead of 2.

 

Stock pipe is 55mm. 55mm = 2.16535"