I have Dynomax Super Turbos that I am planning to put on my car because I want it to not be loud, but I'm surprised to hear folks saying they are efficient and don't hurt power too much. There have been episodes of Engine Masters which show the turbo style mufflers were significantly restrictive and down on power compared to chambered style mufflers. Agree that if you just want something for a cruiser that is a little louder than stock, turbo style mufflers are a great option. But I'd stop short of calling them efficient.
Also FWIW, the 2.5" Dynomax Super Turbo mufflers actually neck down to 2.25" inside, but the Summit brand turbo mufflers are a true 2.5" all the way through.
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Last edited by ZeGermanHam; 05-05-2022 at 02:49 PM.
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