[macncheese]

Anyone who wasnt happy with the aesthetics of the Supertrapp, this might change your mind (or strengthen your arguement). Looks like you can get the cap in different colors. The driveby sounds pretty decent.

LINK

[Chrono]

Well im just about sold...

[CUTiger3]

It does sound good

[Garfield]

Double check, but I'm not quite sure the adjustability is the same.
But yes, these do look nicer. Although, I'm not sure if they'll change color also.

I think you can put the different color caps on the one I have as well.

Check 'em out!

[jlm]

i have my supertrapp for sale, complete with an all stainless mandrel bent connector to sleeve onto the straight section of the stock pipe and with hanger bracket

[Chrono]

hm... which would give the most performance? in all the supertrapp photos i can find on a mini their all exiting at an angle if you see my point, would it not be a possibility to have it run straight out in the center position?

[flyboy2160]

chrono,

although i doubt if the single bend in the pipe like garfield has costs any power, i've also been thinking about running the supertrapp straight out the back.

obviously, something has to be done with battery box. i'm considering cutting off the lower part of the battery box, leaving about a 2" vertical flange of the original sidewalls in place. the lower cut off 5 sided piece might slide up inside those walls. a few fasteners and some sealant throught the sidewalls would give a nice closeout and would allow the fastener holes on the bottom to be used for hanging the muffler. i haven't measured anything yet, so i don't know if this will work; it's just an idea.

i don't know if the stock battery could just be mounted on the "raised" bottom under some insulation(i don't know if the cable will make it, since the cable routes back down throughthe floor). a smaller, lighter, sealed gel battery remotely mounted might be the way to go.

this seems like a lot of work, and i may just do what garfield did. i want to try using a cooper lower valence (U.S. $25) so i don't have 2 cutouts.

does anybody know if the mcs and cooper lower valences are interchangeable?

[jlm]

here is a pic of the supertrapp with custom hanger and madrel bent S-bend. It brings the tip 18" to right of center and clears the battery box. It attaches to the stock pipe near the tunnel exit and uses the stock hangers.

[Garfield]

As you can see from the photo, the physical part of the Supertrapp is VERY long. So obviously you'd have to cut the battery compartment or run below it which would definitely be too low for me to be comfortable with it, but it would work.
You could certainly come more straight after you go around the battery box, if that's what you're looking for. But, I even used the stock pipe bend and just cut the pipe off at the original muffler.

I wouldn't mind have a new shiny one though, although I just wanted "cheap" horsepower and weight loss(and side location).

Brian

[macncheese]

- The stock cooper valence doesnt fit... but you can buy another Cooper S piece and "piece" it together into a 3 piece unit. Doesnt look great, but doesnt look bad either.

-You can buy Supertrap weld on mufflers that do not have the absorption portion, they are 3"-5" diameter and about 2.5" deep.



--
Cheese

[Garfield]

Actually Cheese, those aren't "mufflers", those are silencers that allow you to use the discs. Kinda like a cap on the end of a pipe. For those, you'd just bring a pipe around the battery box and cap it off with one.

In most states (probably all), that's not legal since it's not a muffler with baffles. Nonetheless, I have some racer friends that run them with those on the street.

Brian

[macncheese]

Quote:

Originally posted by Garfield
Actually Cheese, those aren't "mufflers", those are silencers that allow you to use the discs. Kinda like a cap on the end of a pipe. For those, you'd just bring a pipe around the battery box and cap it off with one.

In most states (probably all), that's not legal since it's not a muffler with baffles. Nonetheless, I have some racer friends that run them with those on the street.

Brian

Why isnt that legal? Whats a baffle? The new neon SRT-4 doesnt even have a muffler from the factory!

--
Cheese

[Garfield]

I find that hard to believe, but I guess it won't be legal in Maryland.
The shop who installed my Supertrapp is an Inspection Station, he's also a top road racer in the Mid-Atlantic. He told me that there was no "noise" restriction in Maryland, as long as you had a muffler with baffles. Baffling is just the part of the muffler that the sound circulates through to deaden, or something like that.
I can understand a turbo'd car needing a muffler less, but to sell a car from the factory without one? I don't think that's going to fly, unless it's real quite in non-muffler terms.

[macncheese]

Brian,
Thats really interesting. The Supertrap discs are probably more of a "baffle" than any other part of the muffler. The long part of the supertraps are absorption mufflers, compared to say a Flowmaster which is a baffled muffler. I can believe they'd say you need to have a baffled muffler and there's really no way of telling without opening the case.

[Garfield]

Perhaps he was using the term "baffle" loosely, I don't know.
Either way he said the Supertrapp is legal and it is a muffler, whereas the disc-cap is not a muffler, just a silencer.

Actually, the discs rebound the flow back into the muffler to help deaden the sound. With no discs, it still muffles effectively, just not as much as with discs in.
My father even said the other day that it's not that much quieter with 8 discs than it is with none on his car. I disagree with him, but it must have some merit.

[macncheese]

Yeah thats why I asked for clarification. Thats a pretty interesting law that makes no sense. All muffler really do is silence. i would think that muffler and silencer would be one and the same. I guess thats legislation for ya.

--
Dave

[Garfield]

Maybe it has to do with being able to "show" someone a muffler to prove that, although it's loud, it could be a lot louder.
Something like that?

The mechanic then mentioned something about the manufacturers sueing the state because the cops went around ticketing individuals for having "loud" cars. Since they weren't testing the cars in a professional manner, they were wrong. So now, apparently, is this "muffler" law.

Can't say I understand it myself. But contrary to what other people thought about me adding the Supertrapp to my car, I have not yet been pulled over or questioned about it by authorities. Honestly, it's just a different sound, not much louder than any other aftermarket "ricer" exhausts.

Brian

[Garfield]

Don't have time to read the site in detail. Can anyone explain the reasoning behind the cap with the hole in the center vs. the one without the hole?
It sounded a tad louder with the hole on the site.

[Mugami]

I havent read the sight but I would imagine is Free flow. and simple common sense. IF any set up that you know would have 2 or more discs then why not put the hole in the back so the air can escape in a straight line. a less restrictive design than making all of it go out in a 90 degree out put. This would allow you to run less discs to have the same volume of output.

[Garfield]

Doesn't make sense to me. Why have two discs if you're opening the hole? That's no longer like two discs. The purpose is the restriction and adjustment of that restriction. If you put a hole in the end, you're no longer restricting the air flow the same amount. Sure, it's still restricted, but not as much, right?

If I take the 8 disc setup I have, and drill a hole in it, it no longer serves the same restrictive purposes.