After warming up the engine in my '65 GT (about 300hp) and having a custom 2-1/4" exhaust installed, they cut the pipes (1-3/4"?) off the stock trumpets and custom mated some 2-1/4" up to it. It worked and looked like a champ and if it cost me a few HP it was worth it! As for the grime, it does happen, similar to the way the 5.0L stainless pipes out the back would grime up it you didn't occasionally clean them as well. It really was a non-issue.

I liked them so much that I'd put them on my current fastback build except that it is not a GT, and for some reason, I can't bring myself to add them.

 

Jeff,
The 'Trumpet Exaust Tips' were part of a performance option in 64 and 65, pre GT.
Stainless cleans up nice and the excessive 'carbon' means you are running too rich.
Jim

 

I have some turbo mufflers on my '69. They came with the car. I may replace them at some point, but I have had both Flowmaster 40s and 50s on my '88 351W Bronco with a performance cat. The 40s were nice until I put headers and the high performance cat. Then they were LOUD. I had to change them out to 50s so I could hear the radio. I think with my '69, since it does not have a cat I will also go with 50s so I can still enjoy speaking with my passenger.

 

Yeah, my car already has the trumpets on it. I have not had an issue with the grime, but as stated, I did years ago when it was running rich.

I am really confused now, ugh.

I am curious about the Borlas.
The Magnaflows are getting great reviews.
The Flowmaster has turned almost legendary.
Turbos are always safe.
My buddy's '66 Fastback, in high school, sounded amazing with collectors. His had the best tone to my ears. Actually, i am not sure if they were collectors or just burned out glasspacks.

Remember the days when you would run your glasspack car until it was real hot and then hit the glasspacks with the cold garden hose to break 'em up? Am I dating myself? Geez...I'm only 37.

 

What about Dynomax Super Turbo's I hear they sound pretty awesome?????

 

Wow, that is interesting, I always thought it was a GT exclusive item. That said, I'm going to stick with the standard rear valence without the trumpets or backup lights. It is really kind of silly if I think about it since the suspension, engine and transmission are not stock nor do they look it, but I really want the rest of the vehicle to look like it did as it came from the factory. The only exceptions to that are shoulder belts and probably headrests for safety.

Good info as always!

 

that may have been me...i loved the look, but hated the repro quality. Mine were cut like Jeffs to fit a bigger pipe. As for restriction, no numbers to prove it, but I will maintain I could feel the difference once they were removed. My engine is not stock, but it aint wild either.

The black crap was a combo of running rich down low, the moisture that condenses in the pipes after coldstartsand the use of unleaded fuel. the problem with the trumpets andmy other theory behind the restriction, was that the black crap forced its way out the edges of the cap instead of out the slots. it meant the rear of the car was always covered in crap too. dunno if they were any better in 65.

now running s/steel tips. No crap on the tail, easier to clean and less restrictive. that's my experience for what its worth.

[IMG]local://upfiles/48146/3DC01F8F561540B4BBDCD83968089EB9.jpg[/IMG]