My neighbor used to complain about noise, I should put that trumpet muffler on, that’ll show him :-))

Too many guys are obssessed with tuning engines & not chains these days. The biggest performance gain that can be had with bigger saws is how well the chain cuts. And trust me, it takes a lot of messing around & searching to start making magic. But when you do discover that ideal grind for whatever wood you're in, you'll know it. I was lucky to be able to study several old timers who had mastered the square ground chisel bit.

That much power by only a diff exhaust??? CHEESE AND RICE!!! I very much appreciate what you do for the power saw community brother!!

i did a copy of iron horses pipe, the 90 degree style and it definitely pulled better and longer but the noise was a bit much after awhile, however with a good set of muffs (supposed to wear em anyway) it was worth it to me because the single biggest advantage was a good one, it got lots of heat out and ran cleaner. The saw now doesn't get anywhere near as hot under load as it did with the stock muffler and that has to be a good thing for longevity. There was less carbon build up as well.

Them ironhorse style seem to work really well

Try putting two of the megaphone style you made together with the big ends,in theory one would think it would work like the expansion chamber... like to see the results

I like your unbiased evaluation of the mufflers. Not hating on one particular brand, and let's face it we all have our favorite and I'm sure you do to but your not trying to rm it down people's throat. A true benefit to you tube.

Read my mind lol was making myself a pipe for my 372 today and look what the topic was today! Great videos! Keep them coming!

it would be interesting to see just a straight pipe in different lengths. Love the dyno videos . Victor from Sweden

Amazing findings! I'm eager to see what an opened up stock can will do, as they're obviously much more practical. The noise, your poor ears! 🤯

thank you for making these video's.

Man!!! I really appreciate you doing these, kinda wanted to ask but I knew how much work it would take. Thanks for removing the subjective. Best damn video out there on pipes.

I’m so appreciative of you doing these I have tried so many different pipes

Id like to see a dyno video comparing the typical muffler cover options like the barkbox, striaght shot type but with the factory outlet on the main muffler housing plugged using thin metal in place of the spark screen. Then reinstall the screen and run the dyno again and see what this does to the low end of the saw.

Neat to see. I've mostly used opened up stock mufflers but might have to try a straight curved pipe, seems like small difference in length makes big change were the saw could make power

man you must really love your job! it must be nice to do something you really, really enjoy doing everyday

Acàully with a two stroke or deisel. It's not eliminating the muffler that makes the difference. If you ad a expansion chamber like a dirtbikemakes a huge difference. The expansion chamber pulls more air into the cylinder just through natural convection try doing a tuned type pipe and watch the dyno difference u could likely come up with something that people would buy. Just a thought

You are the veritable and venerable Saw Doc.

That puts that debate to bed then 👍🏻 Great content man.

Muffler mods are so effective and easy. Interesting to see what the differences are.