Dr. Gass NASCAR Inspired Mustangs: $1,400 Shelby GT350 & Fastback Track Car @Stapleton42
Dr. Gass NASCAR Inspired Mustangs: $1,400 Shelby GT350 & Fastback Track Car  @Stapleton42
Uploaded July 2026 | Updated September 2026, 3 days ago
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Boyd Butler aka "Dr Gas" is best known for his innovations in NASCAR exhaust like the X pipe, Y pipe, and scientifically designed Boom Tubes. He is a car guy for life and has pretty epic garage with a few 1960s Mustangs and a 1969 Camaro too! One is a real Shelby GT350 that he bought in 1976 for $1400! It has 1990s NASCAR parts on it and even the original Kodak Racing license plate frame from his days working with the Morgan McClure 4 car team and Sterling Marlin! That story is so crazy it has its own video, along with a full history of Dr Gas Exhaust company and the X pipe Boom Tubes he made famous.

Dr Gas X Pipe BoomTube FULL HISTORY: youtu.be/4n0-ZquLMGQ?si=H_i09YcY1sRZ_1KC
Dr Gas 1995 Daytona 500: youtu.be/HL_spMcptqg?si=Y2mSH0JrUj3l2CS2


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Dr. Gas's NASCAR Inspired Mustangs: $1,400 Shelby GT350 & Fastback Track Car

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