finding out pipe diameter ???

[the moose]

so im going to change my muffler to a flow 40 soon ,and im looking for a way to find out the size of the pipes on my 95 1500 with a 305 v8. is there any EASY way to do this without taking off the muffler and measuring? the cat back isnt stock , but looks to be very close to stock diameter ...

what is stock diameter anyway ? thanks

[AZdragger]

use a tape measurer:think::shrug:

probably 2.25 w/ the 305, but not for certain

[oldred95]

I'm thinking it was 2.5 on my bros. 92 but maybe 2.5 was a slip fit, I can't remember.

[97Silverado]

I want to say it is even bigger than that. I know the convertor on those years is 3".

[bamaZ]

Wrap a tape measurer around it and divide that number by pi.

[oldred95]

I want to say it is even bigger than that. I know the convertor on those years is 3".
My converter looks like 3.5 or 4 inch but then it steps down to 2.75 or 3 where the flange is that bolts up to the rest of the exhaust.

[LikeaRock14]

There's been lots of these topics lately.....

Use the Fuggin search button people :cussing:

[CKTA]

3" out of the cat and 3" to the muffler.

[Joe]

Wrap a tape measurer around it and divide that number by pi.
:LOL: You realize how many of these guys have no idea that isn't the pi you eat :LOL:


You guys are assuming his truck has the original factory stuff on it still. Does it Moose :think: