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- 1971 Mach 1 w/408C stroker
I have never checked the fuel delivery but I could.
Best Mufflers
- Thread starter 73 SGM Mach
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- 71 Mach 1
Light Pewter Metallic
Originally M-code, now BBF+C6
I think the Hooker Aero Chambers are absolutely fantastic, but as Hemikiller pointed out probably not for everyone. I have 3" ACs on my 71 (BBF) and 2.5" ACs on my 69 (351C-4V). On the 71 I went with Magnaflows, not sure exactly which, but they sounded way too tame to me. In my experience the ACs are loud/aggressive @ high rpm, but much quieter at cruising speed, especially in 4th and 5th on the 69. Right now the 71 is an auto w/ 3.89, so louder all the time.
Tony, google Kindig-it Design exhaust cut outs.
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- My all time favorite vehicle is our 1969 Shelby GT500
I had more drone at highway speeds than I wanted. It would get on my nerves after about 20 minutes of drirving. It remained even after switching to a set of mufflers with more backpressure (and the normal operating temperature of the engine increased by about 2 degrees F). I then decided to have an x-pipe made with some fairly radical bends to help the sound waves a lot of metal sidewall to "crash into" to help the metal tubing absorb and reduce the droning. It was a hail Mary, and the potential from increased back pressure due to the fairly radical turns were not a concern as I am not racing the Mustang competitively.
Anyway, the X-Pipe, even with its radical turns, did the trick. The Mach 1 is now a pleasure to drive, and the exhaust sound is still plenty hearty. I also noticed the normal operating temperature of the engine is back to where it was with the higher flow mufflers, so giving the exhaust gas two escape routes apparently did relieve the back pressure enough to offset the snake like turns the X-Pipe introduced - a pretty good indication that I did not cause additional restriction overall.
For quiet, I like the no-name turbo mufflers.
If you want the flowmaster sound, you can get that for half the price. My local midas exhaust guy uses some clone brand and swears by them. It was still more than the $40 summitracing race mufflers I had him install.
I'm not recommending those in this situation, cause they're probably a tad louder than OP wanted.
If you want the flowmaster sound, you can get that for half the price. My local midas exhaust guy uses some clone brand and swears by them. It was still more than the $40 summitracing race mufflers I had him install.
I'm not recommending those in this situation, cause they're probably a tad louder than OP wanted.Barrysmach1
Member
I am going with Borla Pro XSFor quiet, I like the no-name turbo mufflers.
If you want the flowmaster sound, you can get that for half the price. My local midas exhaust guy uses some clone brand and swears by them. It was still more than the $40 summitracing race mufflers I had him install.
This are what's on my one of my cars. They aren't exactly quiet while driving around. It sounds pretty quite while idling and chopping. They get louder up over 1000rpm. The car has some sort of dynamat under the carpet and its still kinda droney sounding as I cruise around. Definitely does not sound like a 73 muscle car.
Barrysmach1
Member
They look like the shorter style, I am using the long style
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