weird dg pipe question?

[fallguy666]

I bought a full DG system this morning for $40!!!! Went to meet the guy a 6:30 this morning.got the pipe and through it in the bed of my truck without really y looking at it(knew it had to be better than what I was running.lol) got home,slept for a few hours got up and came to work.started wrenching on the 350x got the stock pipe crap off and went to install the new header,got it on with no problems.got the muffler and went to put it on a noticed a supertrapp disc pack on the end!!! Its got four disc in it and looks like it was made for this pipe? Has anyone seen this before?

[90guy]

Yup I just bought a pipe that had the same setup. Took it off it blew a seal at the beginning section of the pipe due to, to much back pressure frim that disk set up.

[fallguy666]

Yeah,I took the all the disc out cause it sounded like crap and way to much back pressure.killed my top end.is this something super trap made for the DG or is it just something that works?

[90guy]

I believe it's just something that just works lol!

[barnett468]

that is a std ole super trap. they were around in the early 70's. the more discs you add the LESS "back pressure" it has.

[barnett468]

you can buy the discs separate.

[LastFoolerInVA]

Yeah,I took the all the disc out cause it sounded like crap and way to much back pressure.killed my top end.is this something super trap made for the DG or is it just something that works?

Taking the disks out adds back-pressure & makes the exhaust quieter... at least that.s how the supertrapps work... the more disks your add, the more free flowing & loud the exhaust will be... I think on supertapps you can add up (12) disks.. I think...

[shortline10]

I thought they were added as a spark arrestor

[fallguy666]

Taking the disks out adds back-pressure & makes the exhaust quieter... at least that.s how the supertrapps work... the more disks your add, the more free flowing & loud the exhaust will be... I think on supertapps you can add up (12) disks.. I think...um....I don't know about that.I took all the disc's out and all there is left is a big hole.I'm pretty sure it was added for the spark arrestor

[C.J]

The more disks you add, the less back pressure, more free flowing, and more of a "top end" pipe it becomes. The less plates, the quieter, bore back pressure, and more "low end" pipe it is.

http://youtu.be/R3_AfJjjfrU


On this DG pipe it's probably just something that works so someone could get around the spark arrestor laws

[fallguy666]

Yeah the guy I bought it from was from Florida. I understand about the disc's, I just took em out as to not have any back pressure. for some reason my 350 didn't like being stopped up like that.

[90guy]

The one I bought had blown the seam out right as it starts to cone bigger. Here is what this one looks like.180036

[C.J]

Yeah the guy I bought it from was from Florida. I understand about the disc's, I just took em out as to not have any back pressure. for some reason my 350 didn't like being stopped up like that.

So you're running with no end cap as well?

[fallguy666]

Nope.lol.just a big hole.now the inside of this pipe doesn't look at all like my buddys DG.its the same system

[90guy]

I took my disks and everything off also. No reason for super trap disks on it. I know they don't belong because the bolt has been cut down to fit correctly.

[JustEnough]

I think the original core is a glasspack and is LOUD, but no core would be louder. Here is what my core looks like and I think it is stock. This is for a 200x and it is 3 3/8" diameter; is it bigger for the 350x?

180112180113

[C.J]

If you want a good sound and it not be STUPID loud, use steel wool to repack it.

[fallguy666]

Where can I get that much steel wool and how tight do I pack it?

[fallguy666]

Any body got any tips on how to get the core out of the pipe?

[yaegerb]

Heat and beat

[fallguy666]

Tried that.lol.something is physically stopping it.I can twist it and move it out bout 1/4"

[yaegerb]

it should just be an interference fit baffle inside the housing. Other than heating the housing red hot and twisting it out I don't know what to tell you. That's how you take apart a powroll and a supertrapp pipe. Maybe someone else has more insight into a DG.

Also, another trick is I take a 1x4 pine board and cut a point on one end. I then stick the 1x4 into the opposite end of the interference fit. A couple taps with a 16lb sledge when the housing is red hot has always busted them out.

[fallguy666]

I think it may be the rivots for the DG logo.gonna drill em out and see

[fallguy666]

Yep,I was rite