Randall: your muffler?

[socratic]

Hey Randall,

Did you drill out your muffler like you said you might? I thought I read somewhere that you did a muffler mod.

If you did, how did you do it and what does it sound like after?

[RandallNeighbour]

I got the muffler last week from a very nice forum member... $25!

Bought a long-nosed electric die grinder on ebay and it came in this week.

Bought some grinding wheels at Home Depot last night. I'm gonna try and work on it tomorrow or Monday night.

I will return to this thread with pix as I do it and let you know what happened.

First thought: Our factory mufflers are HEAVY. Dang. I had no idea.

[RandallNeighbour]

OK, I'm in the middle of this project and man, that steel is thick!

The Morse abrasive cutting wheels I bought from Ace Hardware at 2 bucks each wear down to nothing in a flat 1-2 minute span. I am just barely making a groove inside that muffler thus far.

Finding small enough grinding wheels to fit inside the muffler pipe is not easy. Tons of big ones are available...and cheap.

I'm gonna find more of the small 1.5 inch x 1/4 inch ones and keep working at it. I'll keep you posted.

[Rail26]

That's good to know seing as our mufflers are about 4 large! I can't believe they are so expensive.

[RandallNeighbour]

ok, it's installed!

I grinded and grinded and grinded some more... and then took it over to Hans, who not-so-promptly hammered away at my original exhaust to get it off and put the modified one on. Took about an hour and a half, and he's done it a bunch of times. It would have easily taken me 5 hours considering I had no idea how to do it.

Sounds about 20% louder and has a nice exhaust note. I do wish I had worked harder to put larger holes in it though... now that I have a taste I want more!

Muffler hacks = new chemical dependency problem. I just might have to take it off and do some more hole grinding to get just a little more grunt sound out of it. I'm happy for the time being though.

I recommend this for anyone who has an older boxster, little to no cash, and sense of adventure. I did not experience any power loss from the butt dyno.

Dang, I just remembered I was supposed to take pictures. I forgot. Sorry folks.

[Jeph]

Originally Posted by RandallNeighbour

Dang, I just remembered I was supposed to take pictures. I forgot. Sorry folks.

Redemption is only an audio clip away...