1 and 3/4 Primaries 2.5 Crossover. For 265-400 small block V8 engine with single turbo conversion. Fully mandrel bent tubes made of 16-gauge 304 stainless steel. Head flanges laser-cut from 7/16-inch thick steel plates.
Flanges flattened by hydraulic press for precise and leak-free seal. Flanges chrome plated for corrosion resistance.
All joints TIG welded for resistance against cracking and wearing. Polished surface for extra protection against rusting.