You should be concerned. No way I'd use that muffler.a bit concerned about the restriction from stock 2.75" dual inlets down to 2.25" dual inlets.
Fairly certain his was dual-in, dual-out. His was terribly restricted internally--I think he said that the internal tubes were 2".Are you saying my stock muffler is so restricted inside the box?
I don't know about YOUR muffler.
My '97 had a totally-blown-out aftermarket muffler in place when I bought it. I therefore haven't seen the OEM muffler with my own eyes.
Kinda depends on the engine, the rest of the exhaust system, overall system backpressure, location of the "H" or "X", and probably a dozen more variables.On dyno the x pipe is only one makes a power difference usually above 5000. H didn't do much at all
Nicest thing about a crossover--any crossover--is that it tends to quiet the blat-blat-blat of a dual exhaust with no crossover (except the little one across the intake manifold.) Makes it easier to USE the horsepower you have without attracting attention from hand-wringers, busybodies, and Law Enforcement.