Straight pipe on a 4.0

[GrimJeeper01]

I have a 2000 XJ with a 4.0 and a flowmaster 40 and it started making an awful high pitched growling noise between 1,750 and 2,250 rpm and at idle before it's warmed up. I checked clearances and it isn't vibrating off of anything, the sound actually projects out of the tailpipe. I'm guessing one of the welds on the chambers broke. Does anyone know if it would sound half decent with a straight pipe until I get a new muffler? Thanks, Mike

[xj jimmy]

Loud noises!!!!!!!!!!!!

[sethman15210]

itll work as long as you got a loud stero....... or until the cops pull you over

[GrimJeeper01]

I've got the stereo covered and the cops don't scare me. Lol.

[xj jimmy]

I've got the stereo covered and the cops don't scare me. Lol.


run it

[tjblair]

Just get a $20 glass pack.

[xj jimmy]

^^^^^^^^^^^
Good Call!

[sethman15210]

Do what ya gotta do, but a cheapy cherrybomb would work plus they're like 20 bucks

[Dragonslayer]

^ X2, that's what I'm running till I can scratch together enough bread for a decent ($$$) exhaust.

[GrimJeeper01]

Mine has center inlet offset outlet..can you get an S-shaped glasspack? Lol

[tjblair]

Mine has center inlet offset outlet..can you get an S-shaped glasspack? Lol

Uh, no you can't. Lol but you can put the glasspack on after the cat and then just put a turn down on the back of the glasspack. And take off the rest of the exhaust, until you get the proper muffler.

[jeepjunkie]

im running a strait pipe in place of my muffler but still have the three cat conv from the factory on my 2000TJ .I think it sounds good.its not that loud.

[GrimJeeper01]

Yeah mine's a 2000 too so I've got the three cats as well. Should sound alright without a muffler.

[village_idiot]

get a thrush welded, 40 bucks and they sound good.

[Rubiken]

Uh, no you can't. Lol but you can put the glasspack on after the cat and then just put a turn down on the back of the glasspack. And take off the rest of the exhaust, until you get the proper muffler.

Works great!!

[Sloth_Fratelli]

i ran with nothing cat-back in my 96 xj and it was louder than hell but i never got pulled over. straight pipes make sounds that make my pants fit tighter

[GrimJeeper01]

Lmao. Maybe I'll run to work and bend some pipe this morning. I had a 96 XJ too and I broke the exhaust just behind the cat and it sounded like a friggin beast. Thanks Freddy.

[mxg342]

I just bought a magnaflow cat back kit for $147 out of summit for the 96. It even came with a polished stainless steel tip!

[GrimJeeper01]

How do you like your Magnaflow? I want something relatively loud but I know Magnaflow makes extrememly high quality stuff. Plus my tip IS getting a little dingy..

[mxg342]

you could probably do it cheaper elsewhere. I wanted something simple though. It's not very loud at all.

[GrimJeeper01]

Yeah I bought a dynomax cat-back for it when I first got the Jeep and it was quieter than the stock exhaust. It was on there for about 2 weeks til my Flowmaster got delivered. The tailpipe that came with it is really nice though. I like how it's bent to exit out the corner. I haven't seen too many other XJ's with a corner exit. Only think I'd change is to make it 2.5" instead of 2.25". I think your Magnaflow is a packed muffler so it should get a little louder over time.

[Leady]

I agree with whoever said Thrush muffler, that there is a good cheap muffler I had one on my last yota and I'll probably get another.

[Sloth_Fratelli]

I agree with whoever said Thrush muffler, that there is a good cheap muffler I had one on my last yota and I'll probably get another.

the thrush diddnt do anything on my XJ, just made it sound different not quieter but i guess youd pass inspection with it. when i borrowed giblet's welded, my car sounded like it was a damn tuner so i dont really want one of those again lol

[village_idiot]

the thrush diddnt do anything on my XJ, just made it sound different not quieter but i guess youd pass inspection with it. when i borrowed giblet's welded, my car sounded like it was a damn tuner so i dont really want one of those again lol
i want that back, i need to put it on my sisters new car

[Sloth_Fratelli]

this weekend coming up or if im headed towards butler ill drop it off, its been sitting in my trunk for a while lol

[Leady]

I dunno it sounded good on my 3.0 yota. I've heard them on Nissan hardbodies dumped right before or after the axle and they sounded pretty bad.

All I know is for $30 it isn't real big so you can tuck it up under, it isn't a glasspack and it didn't sound awful on anything I've had so I can't say it isn't a good cheap muffler. Even if you don't like it take it off and sell it and you'd only be out 10 bucks.

[GrimJeeper01]

Lmao! I love the fact that this muffler is becoming like the chicks on the corners in East Liberty after 7pm...everybody get a...well...you already know that one ends. :042:

[muddeprived]

get a thrush welded, 40 bucks and they sound good.

That's what I got. :thumbsup:

[GrimJeeper01]

I put the straight pipe on it and it sounds like a damn tractor.

[joshs1ofakindxj]

Haha! I was just going to post how I think the 4.0L with a straight pipe sounds like a tractor!

[village_idiot]

Haha! I was just going to post how I think the 4.0L with a straight pipe sounds like a tractor!
what about a 4.0 with a tractor muffler from TSC

[JeepSteeler]

I have the Borla stainless setup (with header) on my ZJ. Sounds pretty good. Without carpet it is pretty loud. Fairly deep note like a Flowmaster Delta flow. Nobody is going to mistake it for a 5.0 burble but it's not bad and doesn't rust.

[Sloth_Fratelli]

dude, get stacks.

[GrimJeeper01]

Lmao!! Stacks on an XJ...I love it. I'm gonna hafta put some thought towards that. Dual 7" stacks out the back..gotta make 'em about 8' tall too. :wt:

[Sloth_Fratelli]

i actually saw yesterday at work a ranger with two probably at least 5" stacks coming out the bed and flappers on top. i tried to take a pic but it was too sunny for my cell, it cam out all white