tell me about supertrap exhausts

[Beezil]

my suspension project(s) have caused a nasty clearance problem for when I go to route the exhaust.

some of you folks suggested I look at super trap.

I took a look at summit racing's site, and was amazed but the large number of options there....

so i was looking for first hand experience ont he subject....

I'm looking for QUIET!

strange to me that one would reduce the number of discs to achieve this, but I'm wondering which product to choose....

there is one that is a mega-short attatchment that goes on the end of the exhaust tube, and there is also a 'full length' "standard" exhaust assy....

any input?

[XJJPR]

I think you should just install the header upside down and run the pipe out the hood and over the cab!!! :D

hinkley

[Beezil]

Mark is there a jeep forum you aren't on that I could go get some peace and quiet?

jackass! (I love ya though)

seriously, I'm thinkin about popping the exaust through the floorboard, going through the rear bulkhead, and popping on a supertrapp where the spare tire used to be. exhaust exiting just above the rear bumper.....dig it.

[Grant]

Well you can make the Supertrapps as loud or as quiet as you need. Easy to change as needed.

No experience on XJ's though, but they work on every application I've seen them on. Most of the time they have been the small one's on the end of the exhaust for formula type cars racing under a noise restriction.

[AJsArmor]

I've had them on both motorcycles and cars, the shorties are louder than the full length since they do use a packing material inside the tube. You are right on about how to make it quieter, the less discs you have installed, the quieter it will be. It's money well spent, top notch construction and you can tune them quickly and easily.

[Sarge]

Used on bikes all the time. Makes good power. I've seen them on large motors as well.

Sarge

[offroadman83]

How do they sound?

[Lucas]

I've only seen them on my friend's smaller engines (aircooled) and they were loud as crap anyway he tuned it. I think perhaps "quiet" may be relative to the recing applications they are geard toward.
But ive only seen one model, and perhaps the engine was just particularly noisy.

[Fore Wheeler]

I'd run the exhaust through your cage, by the time it went through all that tube it'd be quiet. Use some header wrap to reduce heat. :D

[Beezil]

another jackass......don't stand near any high ledges in Moab, Foreskin

:D

[MaXJohnson]

Back when Brent was posting pics of his chop job, he included some of his floor mods. He raised the floor on the passenger side to accomodate the muffla. Couldn't you do something like that? Going inside seems a little EXTREME. Well... maybe that's why you're doing it! :cool:

[jjchgo]

Originally posted by Fore Wheeler
I'd run the exhaust through your cage, by the time it went through all that tube it'd be quiet. Use some header wrap to reduce heat. :D

teh funny is strong with this one:D

cheers,

jj

[4ward]

The supa trapp you need costs $200+. That's the route I was going until I discovered this. The adaptor plate on the end of your exhaust tubing is NOT the way. It'll always be louder than crapola. Talk to the flower child, we just had this discussion last week.

[XJJPR]

Originally posted by OneTonXJ
The supa trapp you need costs $200+. That's the route I was going until I discovered this. The adaptor plate on the end of your exhaust tubing is NOT the way. It'll always be louder than crapola. Talk to the flower child, we just had this discussion last week.


OT,

Is this anyway to give Beezil crap about wanting to run a non-homemade muffler? Don't we all make our own? I have a homemade one, it's called "NoMuff".

hinkley

[Rev Den]

Beezil,
Sorry if this has been covered...but, have you thought about running the pipe up thru the "bed" and point it up, like a truck?? You could then run a "normal" muffler.

No BS attempted here, just a thought.

Rev

[What Rd]

I can't imagine that routing the exhaust tubing through the cab would ever be anything less than Loud and Hot, no matter what you did to it.
Here's a wild idea (cuz I knows you likes 'em). Get rid of your rock rails, and use some heavy wall tubing as dual-duty rock rails/sidepipes. You could slide baffles into them for noise attenuation. Between the baffles and the heavy walls, they ought to be quiet and would totally solve the lack of room underneath problem.
?

[xjjunkie]

ZOOMIES,,,,,,, with 6 little rain caps on them to tell when a cylinder is dead....

[Beezil]

one snot....

200+???

where do you shop?

I can't even find a super trapp that cost that much....

honestly, I couldn't make sense of yuor last idea either. adaptor plate?

spit it out.

[XJEEPER]

Beez, WonTon, may be right :eek: ......... man that hurts........
I ran dual Trapps on a 4.3 V-6 with headers a few years back and here's what I recall........off idle and around town it was OK as far as noise level, but on the freeway and under throttle, it sounded like a Formula 1 car no matter how I tuned them. They are a tunable glasspack in simple terms.

I did notice a marked improvement in torque when I switched over to dual 3 chamber Flowmasters about a year later......and they were much quieter than the Trapps too.

Did you try Spintech to see if they have something that will fit? They specialize in low profile muffs, oval tubing.....racer stuff. Mil runs a Spintech unit on his XJ and it sounds cool, he makes 275 hp and gets 40 mpg.........would I BS you?

[rockwerks]

There was an XJ here in town with the supertrap on it and it sounded just like my flowmaster....not a note different. it worked really well was cut into his rear bumper to keep it out of harms way..built a heat shield for the floor pan all teh way down..header to tube to super trap on the end...

[JJ13]

They are glass packy in the sound department, on v-8's anyway. I like the rockrail idea. You could run the 2" or 2 1/2" exhaust tube through a rockrail with holes in the exhaust tube and and stuff the rock rail full of exhaust packing, and put a small turn down coming out the end if it. :D

[Beezil]

and the rockrail would need to be 3" (square) in order to make it work...

besides which, how do you get through the frame? I'm not cutting a hole to go through it, and I'm certainly not going under it.....and wehre does the muffler go?

this is a trail vehicle.

[REDXJ4FUN]

heres anothe ieda I looked and don't think anyone poped up'I'm not sure how they sound yet since I haven't had to justifi having exasust done yet but I'm wanting to try one..http://www.jegs.com/photos/71094050.jpg.
Super traps are nice for atvs and motorycycles since you czan tune in the power and noise you want but for a a jeep I'd say its a waste for the money. ut hey by kinda coppying a flowmaste and such you could just build your own and make it rock proffvery easy.

[JJ13]

The rock rail would be the muffler, and I figured if you are thinking about routing the exhaust through the cab getting to the rock rail wouldn't be a problem.

[XJJPR]

Beezil,
The rocker is hollow. A 3" pipe would fit nicely.

mark
orgs mfg

[indulf]

beez

whys it have to be a supertrapp?

if you run it up through the floor and out back, why cant you turn a 3ch flowmaster or something similar on its side?

trapps are loud on everything ive heard them on..

indulf

[Beezil]

I dunno really..... i have a 2 chamber FM right now, and i don't wanna use it. space allowences are my main concern, I don't have much....actually, i haven't really PROVEN I don't have the space since I haven't run my rear links yet.....my kite string links tell me it'll be tough!

[indulf]

id rather run it in the bed than mess with a tight fit underneath. seems like it would cut down on the headache.

dynomax makes slimlime round race mufflers that are supposedly pretty quiet. maybe you could check on those for use in the bed in place of a supertrapp.

[CRASH]

How about just running it INTO the cab, and forget about cutting a hole to get it back out? :D

CRASH

[Fore Wheeler]

Originally posted by CRASH
How about just running it INTO the cab, and forget about cutting a hole to get it back out? :D

CRASH

:lmao:

[Lucas]

As long as everyone else is throwing out nutty ideas...
What about making your own combination manifold/muffler. The exhaust dumps straight from the cylinders into a resonator/glasspack/muffler combination that all fits underneath the intake manifold. After it all collects, you only need to worry about snaking the exhaust tubes around your new suspension and out the back/sides.:dunno:

[Beezil]

I don't have room.

[XJJPR]

Open headers will be quiet!

hinkley

Just trying to be as helpful as you, sir!

[Beezil]

I don't have room for open headers

[XJJPR]

Originally posted by Beezil
I don't have room for open headers



Those arms must be getting HUGH!

How many are there now, 10? 12?

hinkley

[et89xj]

I would think the hard part about running the exhaust through the cab would be running the right hand exit from the manifold to the left side of the XJ over the tranny hump. You could run it down the right side but I would think it might get a lil warm for the driver. Boxxing in the floor to fit 2.5" exhuast pipe then wrap the pipe 'might' cut down on the heat. I'm new here and not yet a member so take what I have to say as you want...My two cents would be to chanel the floor pan then run a stock or near stock muffler in back, you can find skinny round mufflers pretty cheap. I think some old motorhomes ran them...andy

[Beezil]

theres two sets of three arms, but each one is triangulated. Only half are welded

[XJJPR]

Originally posted by Beezil
theres two sets of three arms, but each one is triangulated. Only half are welded


Are they going to be welded prior to leaving for Moab?

I did notice the one in the picture of the wishbone installed!

hinkley

[Lincoln]

Why run one. You can get those small racing mufflers and just use two. They don't even have to be next to each other.

Have you looked at the boat mufflers? I bet you could be them to take up less room than a supertrap even running it out the bed.

Crash does have a point though. Even though your a city slicker I don't think we should talk you into suicide just yet. You would need to install one of those fancy RV vents with a fan. That wold look cool, I even know a place where you could get the plastic cover in hot pink.

Later,
Lincoln

[RichP]

Just some ideas:
1. Install an oversized snorkel, run the exhaust pipe 'inside' the snorkel, kind of like the zero clearance piping they use for home furnaces and vented kerosene heaters. You extend the center exhaust out the capped top and perforate the outer pipe for air in below the capped top.

2. Cut the rockers out and install 4x4 steel tube like that guy in germany did.

3. Run dual exhaust 'inside' the frame rails or re-inforce the frame rails with 2x4 tubing as an exhaust pipe.

[XJEEPER]

Wow Rich, #2 just described the worlds first heated rock sliders.....perfect for those chilly Chicago winter days!