996 muffler on a 986?

[Timco]

Originally Posted by Need_for_speed

This was my solution. Sounds great. Looks interesting. Uses the stock muffler. Most importantly, no drone at any speed. It's fairly subdued until you get on the gas, and then it comes alive with a nice growl.

Any plans or build thread on this?

[Need_for_speed]

Originally Posted by Timco

Any plans or build thread on this?

Timco, this is essentially a "Pedro" exhaust and we used the DIY on his website with a few variations. We used 1.5 in stainless instead of 1.25 for a little more rumble. Since 1.5 won't fit between the muffler and the clamps at the U pipe joint, we added another bend, then cut and welded it a little further down on the U pipe.

After we finished the fabrication, we sandblasted the entire assembly then gave it a ceramic coating. The ceramic coating really cuts down on the heat radiation into the trunk. In fact, it works so well, you can actually touch the muffler with your bare hands after a drive. The coating really dresses up the rear end -- sort of a satin-chrome finish.

I'm very, very happy with the sound -- very subdued until you get on the throttle, and then it really roars. Nice little burble at idle. The best part is when you come off the throttle and you get that sexy crackle and pop. No drone at any speed. Materials and ceramic coating came to about $300.

[clickman]

Need sound clip!

[Finnegan]

Originally Posted by Need_for_speed

Timco, this is essentially a "Pedro" exhaust and we used the DIY on his website with a few variations. We used 1.5 in stainless instead of 1.25 for a little more rumble. Since 1.5 won't fit between the muffler and the clamps at the U pipe joint, we added another bend, then cut and welded it a little further down on the U pipe.

Do you happen to have any more pics of the complete system? This sounds like exactly what I'm looking for, but I don't have tools or know-how so I would need to find a shop to do this for me.

[rfuerst911sc]

Previous air cooled 911's I have owned and a 914 I converted to a six I had M & K mufflers. These mufflers are basically a long round cylinder with inlet/outlet pipes. Made of 321 SS they are very light ( 12 pounds ? ) , look great and sound pretty darn good. Not sure what they do for internal baffling. I have sent them an email about two weeks ago if they are considering expanding to the water cooled cars. The answer was yes but not in the immediate future. If I had the metal skills to form the cylinder and weld like they do I would make my own. If you look online at muffler cut away pics a muffler is not that hard to make. Sure you might not get it right the first time but eventually you can get there.
I think the real key on our cars is to stay with a " single can " vs. a " twin can " muffler to eliminate the drone. I am playing with my twin can GHL on " the beast " . So far I have installed two small resonators ( one each side ) and some Car Chemistry exhaust inserts right behind the resonators. The sound is just about where I want it but I still have some drone. Much better than it was but still there. I may go with a set of CC inserts in the twin outlet pipes. If that doesn't get me to where I want to be I will explore making a single can muffler. The factory muffler for me is just too large and heavy.

[Need_for_speed]

Originally Posted by Finnegan

Do you happen to have any more pics of the complete system? This sounds like exactly what I'm looking for, but I don't have tools or know-how so I would need to find a shop to do this for me.

Finnegan, sounds like FD Motorsports might be the perfect solution for you.

FD Motorsports » Fister Exhaust – Boxster

The alternative is to find someone near you that has pretty good welding skills and a mandrel bender. The space is also pretty tight, so fit is crucial or the bypass pipes will run too close to stuff that might melt or vibrate.

I did a lot of research, and my initial goal was to find something lighter than the OEM boat anchor. That's when I discovered that Porsche engineers actually designed it that way on purpose -- the weight and configuration of the system serves to stabilize vibrations and prevent drone. This modification gives you a Porsche Sport Exhaust system for a fraction of the price.

[Finnegan]

Originally Posted by Need_for_speed

Finnegan, sounds like FD Motorsports might be the perfect solution for you.

FD Motorsports » Fister Exhaust – Boxster

Thank you! I'll check that out.

[geraintthomas]

Originally Posted by Finnegan

Do you happen to have any more pics of the complete system? This sounds like exactly what I'm looking for, but I don't have tools or know-how so I would need to find a shop to do this for me.

It's just two pipes that go from the pipes that run into the muffler, which go straight into the tailpipes, 'bypassing' the muffler and letting more sound out.

Check my previous post to hear it