seth0804 5 #1 Posted March 20, 2012 Hello, I have been getting a lot of great help in here!! I want to order a muffler for my kohler engine and what one of the stacks, what size id muffler will fit over a 1 1/4 threaded pipe? Share this post Link to post Share on other sites
SousaKerry 500 #2 Posted March 20, 2012 O.D. of 1.25 pipe is like 1.660" so either you would have to expand a 1.5" pipe or squeeze down a 1.75". I would take a chunk of pipe to the auto parts store and see what fits the best of the available fittings, you may get luckey Share this post Link to post Share on other sites
seth0804 5 #3 Posted March 20, 2012 ok great, thanks for the info Share this post Link to post Share on other sites
bowtiebutler956 649 #4 Posted March 20, 2012 If you have a kohler you probablly have 1" pipe. I got my muffler from Tractor Supply Company for 29.99 about 3 months ago. Here is a pic. Matt :flags-texas: Share this post Link to post Share on other sites
