Doug's headers fittment

That’s not true at all. I mean sure, if you’re going across a uniform height speedbump that’s wider than your car that might be true, and even then it makes a difference how close the low spot is to the suspension. The worst spot for clearance is halfway between the wheels if you’re taking speed bumps. But realistically, the ground you travel over is never flat, and the more stuff you have at that lower height the more likely you are to bash it on something. Especially if that thing isn’t parallel with the body of the car. You’re a heck of a lot more likely to snag that length of pipe than the point of a collector.



Low profile tires don’t have anything to do with it. My low profile tires are still taller than anything you could get stock. Overall tire height is what you have to pay attention to.
Speed bumps are the worst almost exactly where the flanges are, because the frt on most rides will jounce the most after going over it, and they are directly behind to
do a nice job of catching it. Sure if You are aware the bump is there and have slowed to a crawl, then it is simply the measured clearance no matter what position. It's
crossing the "break-over" such as turning off a street into a driveway or intersecting road that is steeply graded down from the street level that'll getcha in the middle.
I think Rusty's point was simple enuff, if 'Ya plan on slammin' the ride for whatever reason, and by whatever method/means, expect less than stellar clearance from any
of them no matter how good.