Are the tailpipes only available for single exhaust?
The only “over the counter” exhaust part(s) that is available (that I know of) for FMJ vehicles are:
- Mufflers (various shapes, sizes, pipe sizes and manufactures)
- The “Canadian” Y-pipe (when available) – which is the Y-pipe without the two pre-cats. Production of this part is intermittent, and I fear, might be close to end of production life. Walker 40430
A Y-pipe with pre-cats (which I’m not sure why one wants this, unless required to due to emissions law). Bosal 0793002
- (Rear) Catalytic Converter (two versions, one with A.I.R. tube from A.I.R. pump, and a version without the A.I.R. tube)
Tube type Bosal 079009 or Eastern Catalytic 20120
No-tube type Eastern Catalytic 70002 (with 1-7/8” inlet) or 20004 (with 2-1/4” inlet)
- The Right tailpipe. Walker 45614 (1-7/8” diameter (48 mm).
Note: there might be some other items (out of production or overruns) available on eBay or other sources, but the above parts are the only ones I know of on today’s part books for small blocks.
I didn't look up anything on /6's.
All the performance parts (factory dual exhaust, etc.) had dried up by the end of the ‘90’s.
It has the appearance that even the rest of the exhaust parts might not be far from also disappearing from the part store shelves/warehouses.
Some older muffler shops have books (not digital) that has data they can use to reproduce a pipe without seeing the car. Most muffler shops do not have these books/manuals.
Any good muffler shop can make great fitting pipes without a stinkn' book.
I have a brand-new tailpipe (Walker 45614, mentioned above) that I’m willing to give away if a person wants to pay freight (or pickup).
I bought it and gave to a muffler shop to make a set of ’80 and up tailpipes at 2¼” diameter. They reversed the pattern to make the Left side. I made these pipes about a decade ago and they have are hanging in my garage rafters. I had these made before I found out about the fuel tank move and fuel filler neck issue - so not sure that I want to use them on my ’86 Fifth Ave – yet. Also, i've hadn’t gotten to the point I need to use them, just yet (the tailpipes are not for sale, at least until I make up my mind on it).
I also had a small block 2¼” Y-pipe made up using an older smaller Y-pipe as a model – but I doubt I will use it either, so it is for sale.
https://www.forfmjbodiesonly.com/classicmopar/threads/the-canadian-y-pipe.5866/ - the lower picture of first post is for sale (very cheap). The above-mentioned Walker 45614 tailpipe is free (plus freight) for anyone who wants it.
For those interested, my ’77 Volare (318 2-bbl automatic), has 2-1/8” downpipes and 2-1/4 Y-pipe exit. The single cat converter (no A.I.R. tube) has a 2-1/4” inlet – but don’t remember the exit size (2-1/8” maybe?). As the exhaust cools down, it doesn’t take up as much space – so having an exhaust system that tapers down some helps to keep the exhaust drown noise down.
The rear cat (with A.I.R. tube) inlet on my ’86 Fifth Ave (318 2-bbl automatic) is 1-7/8”.
Bud