2.5 Iron Duke TBI Exhaust, (grid-style cat, no muffler)

2.5 Iron Duke TBI Exhaust, (grid-style cat, no muffler) Tube. Duration : 1.27 Mins.

This is as close to open exhaust as I can get in my town. New style grid, or comb style converter with no muffler. 1.75" main to a 2" exit. Sounds like a tractor and leaf blower combined. I also put it under load so you can hear how that sounds. Burns a little oil on start-up because the valve guides are bad. Runs clean after a minute or two.

Keywords: 2.5, 2.5l, Iron, Duke, EFI, TBI, S10, S-10, Skylark, Buick, 1985, 85, exhaust, sound, Corvus, Casull