[YenkoYS100]

I remember a magazine from the '80's running a muffler shootout. I believe it was Hot-Rod ? The article was called a "shootout", and had a drawing of a cowboy character, I believe drawing a muffler from a holster.

From my past experiences.......There are ALOT better mufflers made today, than the old Corvair turbo muffler. The old Mopar Hemi mufflers used to be the ones to run, in the past. I owned a '64 Turbo Spyder that I restored in 1987. The Corvair Turbo cars, both early ('62-'64), and late model ('65-'66 the last year for a factory turbo 'vair), had restrictions built into the intake (air-cleaner & carb), and exhaust (muffler w/ more backpressure), to limit the amount of boost that the turbo could build, so as not to blow it up. They had NO wastegates on the cars. Changing to a bigger carb., or removing the muffler, would let the cars make more boost. You just had to be careful to not detonate it to death. That being said, I believe that there is a good amount of backpressure in the Corvair factory turbo mufflers.

Just a little info. for you.
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Rick