550XP Muffler Mod Thread

[Tzed250]

My ported 550 puts a grin on my face every time I run it!

 

[Jet47]

After my MM, my 550 is the coolest sounding saw I have ever owned.

 

[Fire8]

What is the best way to get all the metal shaving out

 

[Tzed250]

Compressed air.

 

[Fire8]

Compressed air.

Well if I can find the right size Allen in my tool box its going to happen today

 

[Fire8]

Compressed air.

Does the gasket go between the metel and cyl or muffler and metal

 

[Joe Kidd]

Does the gasket go between the metel and cyl or muffler and metal

Between the metal guard and muff. cyl-metal guard-gasket-muff, in that order.

 

[KenJax Tree]

After my MM, my 550 is the coolest sounding saw I have ever owned.

I've never heard a MM 550 but i like the sound of my MM 372's

 

[Fire8]

Between the metal guard and muff. cyl-metal guard-gasket-muff, in that order.

Thanks 550 done turkey done just waiting on my mastermind 365xt also thanks randy

View attachment 263462

 

[Jet47]

I've never heard a MM 550 but i like the sound of my MM 372's

Its soothing in an angry sort of way.

 

[TK]

Thought I had a vid, I don't. Just this pic.

 

[Tzed250]

For your viewing pleasure:

[video=youtube_share;6vZQcHGODFo]http://youtu.be/6vZQcHGODFo[/video]

 

[Fire8]

After the mm on the 550 today it was like I
Got a new saw for cheap

 

[Tzed250]

After the mm on the 550 today it was like I
Got a new saw for cheap

Didn't know there was a 60 under the hood, huh?.

 

[Fire8]

Didn't know there was a 60 under the hood, huh?.

O I like the way it sounds:msp_biggrin:

 

[A.E. Metal Werx]

I've posted a thread on this muffler mod before but I think it fits well here also. It has been stated numerous times that gutting the whole muffler really makes no difference, I can vouch for that. I ran the saw for a while with just the added port and ran it a lot with style of mod with no power difference and this mod is no louder then one with just another port added. I wanted it be different and this is what I came up with.

 

[born to hunt]

Nice thread. If I do a similar muffler mod, I assume I will need to retune the saw. My 550 xp has auto tune. Will it therefore tune automatically? Does anyone have any experience with this?

 

[KenJax Tree]

It'll retune itself

 

[born to hunt]

Check me on this: I did the MM on the 550xp AT. It sure screams... Maybe too much? Seems to 4 stroke at WOT and as soon as it bites into the wood, it sounds perfect. Runs a bit loud. If this is the way it's supposed to be, I'm thrilled. It seems to have more snort for sure. And the cool factor just went way up!

 

[KenJax Tree]

Thats how its supposed to be. Enjoy!