I have a 85 Fleetwood Brougham with the HT4100. Would dual exhaust benefit my engine or would I just be wasting my time and money?

I don't think it really worth it. But it could be done. If you just wantto give it a better sound you could just replace the stock muffler witha flowmaster and get rid of the resonator. That would free up restriction and make it sound better.

thanx Fastwood, I might just go with that idea

ok i'm in a similar situation.

i have an 87 brougham delegance, w/ the 5.0L in it. i just bought the car this week and one of the first big ticket items is to change the exhaust b/c its old and the mufflers blown.

i noticed its a single exhaust, so that being said, i want to convert to a dual setup. is this most likely going to need new headers, to an h or x pipe?...or possibly run straight back to two seperate mufflers and tips?...

whats the common setup people go with for this car?

You don't need to get headers just for dual exhaust. The best thing to do is to take it to some different exhaust shops and tell them what you want to do and get some estimates.

does anyone have an estimate about what i could expect to pay for a dual exhaust installed? BTW this is my first post!:woohoo: :littlewes

true duals will be several hundred, maybe 4.
if you just have a muffler installed, about 100

how loud would that muffler be and would it do anything to help performance/gas mileage?

I think that the big body RWD Caddies should've come with dual exhaust. They just don't look right with a single pipe.

1 pipe for each cylinder

Zoomies baby :D