Dual Exhaust question???

[1990LTD]

and yes leo that's what I mean..

[Nathan in MI]

Thanks Nathan. If I had a set of Rustang headers on, would it be a different story?

Yes. With headers, you lose the heat riser valve, so you have full exhaust flow through both sides at all times. Still, in my opinion, the flow improvement makes it a worthwhile addition.

If you'd like to learn a little more about exhaust system theory, take a look at this article:

Exhaust Science Demystified

[1990LTD]

That link is 9 kinds of awesome. thanks!

[Nathan in MI]

Only 9? Gee, I was hoping for 10.

:p

[1990LTD]

It would be 10 if it came and did the work for me

[88Vic]

Is this 9 kinds too?

http://www.popularhotrodding.com/enginemasters/articles/hardcore/0505em_exh/index1.html

[Nathan in MI]

Well, it's the same article, so I'm gonna say probably so.

[1990LTD]

Another stupid exhaust question, but I'm looking at a set of glass packs and don't know how long they can be under our cars..they go from 22-29" and I don't know what degree bend I'd need, either.

[Nathan in MI]

Most auto parts stores should be able to sell you a glasspack that's made to fit right into the stock exhaust system. Just ask for a pair of glasspack mufflers for a '90 Crown Vic. That's what I did, and they fit great.

[1990LTD]

Thanks, but I'm probably going to go one at a time..a better-flowing, decent sounding muffler and a newer/bigger/better tail pipe. When I go duals I'm going to get new headers and duplicate that one on the other side.

[Nathan in MI]

In that case, just buy one muffler instead of two. If you're going to upgrade the tailpipe (not where I'd be starting, but it's up to you), you'll need an adapter to go from the 2" muffler to the 2.25" or 2.5" tailpipe, which will also be available at any local parts store.

[1990LTD]

I didn't mean that I just wanted to put a big tailpipe on it - I want to replace everything from the Y pipe back