Topic: Performance Stainless catback for $160

[sharpxmen]

so today i took the jeep out for a spin with the new exhaust installed - it's not loud at all, i am surprised since this muffler is a straight thru, no baffles, you can see on the other side no problem - it has a perforated tube inside and is fiberglass packed, has a nice low tone compared to the stock one - it is a bit louder than stock but as a comparison not as loud as my v6 camaro with stock exhaust. I'm happy with the choice to be honest, i was a bit worried about how loud it would be (had my stock muffler broken once at the inlet and it was pain in the ears) but it's fairly quiet so far for this design.

[aw12345]

Problem with glaspacks it that they burn that stuff out in time. Had glasspacks with dual pipes on my old dually that thing sounded like it had open pipes roared something fierce and loved every bit of it

[YJmechanic]

Looks like good work, I remeber when I had fancy mandrel pipes, but rocks like to eat them so eventually I through a flowmaster under there and cheap turndown, now it gets eaten on the trail and doesn't cost much haha but looks good man

[sharpxmen]

Looks like good work, I remeber when I had fancy mandrel pipes, but rocks like to eat them so eventually I through a flowmaster under there and cheap turndown, now it gets eaten on the trail and doesn't cost much haha but looks good man

how would the rocks eat the tailpipe?

[YJmechanic]

I've smashed the tailpiep closed more than once and ripped the whole catback off once, just getting in a bad line, it happens

[sharpxmen]

I've smashed the tailpiep closed more than once and ripped the whole catback off once, just getting in a bad line, it happens

i just don't see how it can happen on a YJ, there's the leaf spring in the way for the rear portion, axle in the middle and to hit it at the join elbow with the muffler you'd be damaging the driveshaft as well so the tailpipe would be the last of your worries. Now, the muffler is more exposed so i can see that being more likely to happen.

[Jeffy]

i just don't see how it can happen on a YJ, there's the leaf spring in the way for the rear portion, axle in the middle and to hit it at the join elbow with the muffler you'd be damaging the driveshaft as well so the tailpipe would be the last of your worries. Now, the muffler is more exposed so i can see that being more likely to happen.

Most exhausts have several inches sticking out past the rear.  Back up into a rock or even a hill and it crushes the tip.   You can also buckle the whole pipe if the rear mount breaks in the process.

[sharpxmen]

Most exhausts have several inches sticking out past the rear.  Back up into a rock or even a hill and it crushes the tip.   You can also buckle the whole pipe if the rear mount breaks in the process.

mine is tucked in behind the hitch mount and above the shackle







i actually ended up using another tip (Banks sent me another one, don't have a picture of that one right now) - it is even higher than this one in the picture (it is 2.5 rather than 2.75'' diameter and cut leveled with the rest of the tailpipe - less turn down that is)

[YJmechanic]

jeffy is spot on to what i meant as usual,  and yeah tucking it in is why i have turndown on it most of the time.  in pa you cant hae the tailpipe tucked in.  it must exit out the back of the vehicle so i have a cheapo tailpipe i use for inspection and then i put the turn down on when i think about it

[sharpxmen]

you could also have a clamp-on tip to be compliant and take it off when on the trail. only problem with turn-down is that would get you lots of exhaust gas to smell, had that happening when the muffler gave up on me.

[YJmechanic]

That is true but the turndown is just shy of the gas tank skid and j have no rear seats or anything so it doesn't bother me really

[chardrc]

you could also have a clamp-on tip to be compliant and take it off when on the trail. only problem with turn-down is that would get you lots of exhaust gas to smell, had that happening when the muffler gave up on me.

we have experienced the opposite (at least on road) if the exhaust tip points straight out the exhaust tends to swirl up and into the cap of the jeep (this is all with no top on of course) but if you have a tip that points down the exhaust goes down and stays out of the cab resulting in no exhaust smell. it doesn't have to point straight down but at-least be angled down.

[sharpxmen]

we have experienced the opposite (at least on road) if the exhaust tip points straight out the exhaust tends to swirl up and into the cap of the jeep (this is all with no top on of course) but if you have a tip that points down the exhaust goes down and stays out of the cab resulting in no exhaust smell. it doesn't have to point straight down but at-least be angled down.

that does make sense
i was referring to having the turndown at the muffler outlet, the smell drove me nuts when that muffler broke but based on what you say it won't make a difference if you're without the tip either.

[neale_rs]

Most exhausts have several inches sticking out past the rear.  Back up into a rock or even a hill and it crushes the tip.   You can also buckle the whole pipe if the rear mount breaks in the process.

Had that buckling happen one time.  Still can't figure out how a rock got up in there!  Be really careful when backing up.

[Jeffy]

we have experienced the opposite (at least on road) if the exhaust tip points straight out the exhaust tends to swirl up and into the cap of the jeep (this is all with no top on of course) but if you have a tip that points down the exhaust goes down and stays out of the cab resulting in no exhaust smell. it doesn't have to point straight down but at-least be angled down.

That's why they have turn downs.  The exhaust hits the pavement and spreads out at ground level.