The 17749 mufflers are my favorite.
Almost as quiet as a factory muffler and great performance.
I run them with a Flowmaster mandrel bent aluminized 2-1/2” system with H-pipe on both of my 1964 A-body Pontiacs.
Not all turbo mufflers are created equal, the cheaper/generic ones can be too loud and annoying.
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1964 Tempest Coupe LS3/4L70E/3.42
1964 Le Mans Convertible 421 HO/TH350/3.08
2002 WS6 Convertible LS1/4L60E/3.23
1966 VW Type 2 Single Cab Pickup 140hp 2276
1956 VW Type 2 Panel Van 36hp 1200
1957 VW Type 1 Beetle 180hp 2276
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