[DanEC]

How well the ERA system flows could depend on the mufflers they use. I fear a 2 inch inlet/outlet muffler may have less than 2 inch tubes inside which would really be a constriction. I own a mid-year Corvette with sidepipes and for years I've heard about how restrictive the original GM versions are with 1-7/8 inch inner baffled cores - even on stock small block cars. Everyone pretty much understands these days with 3-inch systems that you need at least 2-1/2 inch headpipes and mufflers to support a big block motor or high winding small block. I guess a compromise might be to use a compact muffler with 2-1/2 inch nipples, 2-1/2 head pipes to the mufflers, and then neck down after the mufflers to the 2 inch tailpipes. I expect a cross over is out of the question with the main chassis rails.

Dan