The Avanti Exhaust Masterclass: Blueprint-Bent Accuracy vs. Muffler Shop Guesswork
Installing an exhaust system on a 1963–1985 Avanti is a notorious challenge, requiring precise clearances around the steering control valve, oil filter, and X-member frame. In this definitive guide, Dan Booth explains why generic muffler shop pipes often fail and why authentic, blueprint-bent components are the only solution for a rattle-free fit.
Drawing on his background as a journeyman toolmaker and 46 years of Avanti service, Dan breaks down the evolution of the system—from the 5-place Studebaker design to the 6-place Avanti II emissions setup. Discover the pros and cons of aluminized vs. 409 stainless steel, the "secret" 1-7/8" pipe diameters, and why Nostalgic Motor Cars uses custom fitment jigs to ensure every pipe fits like factory-original stock. Includes 10 expert "Tips & Tricks" for a professional installation, including proper clamp placement and achieving the perfect "Nostalgic Rake" tailpipe alignment.