If I had a car that would take any of the cheap headers floating around on eBay, I might consider getting one and flattening it a bit. This would increase the surface area to volume ratio though and would require good heat wrap to avoid exhaust gas velocity loss from cooling. For example a cheap tubular header with 1.5 inch primaries would be much improved for outputs less than 50HP a cylinder or so by squishing it down to 3/4" in one dimension along most of it's length. I'd pack it with damp sand or similar substance while I was hammering at it, or using clamps on it, and be careful not to stress joints which may crack.
I'm considering getting an older factory header for Wile-E at some point pre-91 Escort GTs with the 1.9 motor came with them. However, I'd need to relocate the cat, get an O2 bung welded in and tweak it a little... so I'm probably not going to try it until I'm needing a new cat. Which I hope shows itself starting to weaken on an emissions test before it's a complete fail (Don't wanna be under pressure to get it done in a couple of days after a fail)
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I remember The RoadWarrior..To understand who he was, you have to go back to another time..the world was powered by the black fuel & the desert sprouted great cities..Gone now, swept away..two mighty warrior tribes went to war & touched off a blaze which engulfed them all. Without fuel, they were nothing..thundering machines sputtered & stopped..Only those mobile enough to scavenge, brutal enough to pillage would survive. The gangs took over the highways, ready to wage war for a tank of juice
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