24 replies to this topic

[Justshootme84]

I pose this question to all Bronco owners with a custom exhaust system. I currently have a single catalytic converter, single-in Flowmaster with dual-exits behind the passngr-tire, 2-1/2". I love the sound, it's a deep 40Hz rumble at cruising speed, a really sweet tone. also street-legal in Texas.

I have considered headers, pros and cons, with a y-pipe to a single cat. and my current set-up aft of that, but I really like the dual glasspacks on my '85 Chevy. I know the Bronco t-case interferes with true duals, so it will prolly have to be a custom job for that. Problem is, no muffler shop around will touch headers, let alone the dual exhaust w/ gp's.

Any suggestions are welcome!!!

[Sorny]

Well I have true duals on my 89 Bronc and it seems like a staright forward exhause job. From what I can tell is nothing special had to be done. I also am curently looking at headers and changing my mufflers to glasspacks, and the guy I get to do all my exhaust said he could do it with out a problem. So from what I take is that you don't need custom exhaust.

[Sorny]

Also personally I think that having headers going into single exhaust kind of defeats the purpose oh having headers. Cause headers are supose to make your vehical breath better and having singles with that just doesn't work. That my opinon anyway.

[Justshootme84]

Thanks guys!!! I agree with the headers not getting full benefit with a Y-pipe and single cat. Where you have the dual pipes, is the driver's side routed underneath the transfer case? I guess that's my main concern, interference with that and the driveshaft. You are right, too, that I can install the headers myself. But i don't know what I'll do after that. I fired up the old Chevy yesterday, and I love the sound!!! Vroom!!!

[Sorny]

Well I just had a look at my setup and the pipes are ran on the passenger side above the cross member for the transfercase, both pipes run beside the tansfercase on the passenger side.

[4xfan78]

Sorny mine also run like that on my79. I dont kwon any other way to do it that would be easier.

[grande_guerre]

hey yall, just curious, whats a GP? and would headers be street legal in Alaska(current) and Arizona(moving to)?

[freak]

Justshootme84,here's some picture's of my exhaust.There Hooker headers with 3" mandrel bent pipe that go into 2 Flowmaster 40 series Delteflow mufflers.
http://www.superford...Picture 031.jpg
http://www.superford...Picture 032.jpg
http://www.superford...Picture 033.jpg
http://www.superford...me=DSC00255.JPG

The only thing I wish I would of done different is byt the stainless steel Flowmaster's.

[4xfan78]

Hey GQ you cannot have headers on youre truck in Alaska. I just moved from there 2 years ago. If it did not come from the factory with it you cannot put it on your truck. All emission,exauhst,and engine components have to be on your truck and work properly. If it doesnt you cannot put it on the road(at least thats how it is in anchorage and surrounding cities) good luck.

[grande_guerre]

oh well, I guess it makes sense since i put about 500 dollars into emissions this past fall to make it pass I/M... I guess I'll wait till i'm down south.

[Justshootme84]

Thanks for the pics Freak, that's the set-up I'm looking for, except with glasspacks/ GP's. I listened to your sound clip, and that's way mo' better than what I have now. Only problem I might have is that there are no cat's/ catalytic converters. That's what keeps me from doing that, so I ask you guys that said the pipes are routed above the crossmember on the passenger side. Do y'all have a single cat or 2 cats?

GQ, I have also heard that emissions laws in Alaska are similar to California, you must keep everything stock. It's not as tough here in the country in Texas, but the big cities like Houston & Dallas have emissions or smog testing. Therefore, no local shop will install headers, remove cats, or do any mods that change what is stock equipment on that year model. No inspection station will pass you, either.

I think I'll just run straight pipes up thru the hood on either side of the shaker!!!!

[freak]

To bad you have to run the cats.

[Justshootme84]

Thanks gunner!!! I haven't thought much of the body lift thing, but that would give me more room. Now you know why I want a 78/79 Bronco--no cats!!! I was shocked to find I had two cats on my 84 Bronco when I got the new Flowmaster installed. Of course, both of them fell out on the ground when the shop cut out the old muffler!!!

I decided that after my next inspection (this month in May), I will just go with headers straight into GP's and out the back at an angle. If that's not street legal, then it will just be a trailer hog for racing and on the farm. I just wanted cats for each side, and I don't see that working for me.

[Justshootme84]

Guess I'm just hard-headed, but I think you're on to something there, Gunner!!! Here's a pic of my current set-up: Everything is routed on the passenger side.

http://www.superford...ame=NP208F2.jpg