stebro exhaust

[ocelot]

(And before anyone asks, NO, I don't work for STEBRO. I live in SoCal and bought a Racing Muffler from them a couple of months ago and I LOVE it. Big sound, meaty and aggressive.)

So here's the deal: STEBRO sells 4 "systems" for the 986 and they fit both 2.7 and 3.2:

* System 1: Sport Muffler - This one just replaces the stock muffler. And it is about 1/3 the weight of the stock. This is the bigger (thicker) of the two STEBRO mufflers, the one that looks more oval. It has double chambers, makes less noise and less resonance.

* System 2: Racing Muffler - Again, this one just replaces the stocker and its even lighter than the Sport muffler. This is the one that looks rounder, like two long cans. Its basically a straight-pipe with some baffling. Pretty darn loud

* System 3: Sport Muffler (same one as System 1 above) WITH Secondary Cat-delete pipe - this is the System 1 muffler with a straight pipe that replaces the pipe-and-secondary muffler. Connects to the pipe that leads to the Primary Cat and the Header.

* System 4: Racing Muffler (same one as System 2 above) WITH Secondary Cat-delete pipe - this is the System 2 muffler with a straight pipe that replaces the pipe-and-secondary muffler. Connects to the pipe that leads to the Primary Cat and the Header.

Now go re-read the STEBRO weight descriptions of the EXHAUSTS (not just the mufflers) and the weights start to make more sense. The stock muffler and both secondary Cats do weigh about 75 lbs.

Like I said, I don't work for Stebro, but I think they are a class-act. Dan Petschenig, who is the head of the company answered all my e-mails and annoying questions and could not have been cooler.

[ddb]

Not a thing of beauty, but the tips look decent, and that's all you'll see.

Scale at work was flickering between 15 & 16 pounds.

I hope I can get enough time this weekend to install it. I'll report back once it's on.

ddb

[Adam]

It looks like the right side inlet is damaged. Is that just the angle in the picture?

[ddb]

Good eye Adam. As soon as I removed the cardboard protective sleeve I noticed it hadn't done its job. Or it was damaged before it was packed. I do believe the pictures make it look worse than it really is. It shouldn't be difficult to fix before installation.

[Chris_Craft]

I received mine as well. I will hopefully get it installed this week.
I guess they ran out of decals.

[ddb]

I finally wrapped up the install of my Sport Stebro exhaust this evening. It took days to install because I only worked on it for 1.5 hours or so after work, and I'm slow. I haven't driven it, but idling and revving standing still sounds amazing! I haven't had the privilege of hearing in person some of the other popular exhaust systems, so I have nothing to compare the sound to except the stock system. I'll report more after giving it a thorough test on Saturday.

Here are a few pics. I think I can get the tips better centered in the relief of the bumper cover, but don't feel like doing it right now. I also think I need to work on my spoiler. Does it look like the gap between the spoiler and the top of the bumper cover it too big?

yellowboxster01, thanks for starting this thread and turning me on to the Stebro exhaust. I think I'm going to like it a lot.

ddb

[ddb]

Well, I spent a part of the day driving my car for the first time since installing the Stebro Sport exhaust. I really didn't realize what my car was missing (sound) until I desnorked about a month or so ago. Hearing the more pronounced intake noise piqued my interest in a more aggressive exhaust note.

The car now starts with an aggressive, slightly angry growl that was totally missing before. It really sets an audible tone to go along with all of the other benefits that come with driving such a great car.

In my opinion the exhaust is most boisterous right off of idle after starting in first gear. It is honestly louder than I expected, and oh so addictive. I probably drove around for an hour and a half today and never turned on the radio, which has never happened before. I've often read where people say why upgrade the stereo when you can just listen to the engine. I can now understand where they are coming from with the aftermarket exhaust.

It's fun to listen to the deep growl change to a howl as the RPM's rise. When you finally get to a cruising speed and the RPM'S settle to a rather constant speed the exhaust tone mellows to level that is definitely louder and different than stock. Is it offensive? I would say no, at least not after one day of driving. This may change after a 12 hour trip or after more weeks/months behind the wheel.

I did some highway cruising today and the sound really quiets down with the cruise control on and not much load on the engine. When I would bump the cruise up by hitting the stalk once or twice you can really hear an instant change in the exhaust note. This would also happen whenever reaching an uphill grade and the cruise would adjust to maintain a constant speed.

I'm looking forward to hearing what Chris_Craft thinks about his Sport system after switching from GHL. I know I've saved weight with this exhaaust, and hope there are some other benefits like a cooler running engine, etc. My main reason however was for sound, and so far, goal accomplished!

ddb