Originally there was a straight piece of pipe welded to connect the Frankenstien Motorworks header to the rest of the stock exhaust system on my Mr2 Spyder.

It didn't sound too good and the original catalytic convertor was half broken and smelled bad.

I got a Magnaflow 14210 muffler for the car. The intensity is just right; below 3k rpm its as loud as most other cars but sounds a bit nicer. After 4k rpm it really shines and makes a nice deep rumble you can hear inside the car.

Because the pathway is mostly cleared up, the small amount of fuel that is dumped into the exhaust on deceleration makes a nice pop when the car is warmed up, and sometimes a few pops in a row. Exciting.

The catalytic convertor is a Yonaka high flow 400 CEL 2.5" universal cat. Contrary to popular belief, there is little to no HP loss with modern catalytic convertors, and the smell of exhaust without one is very unpleasant.

The exhaust tip was just a trapezoid shaped stainless steel tip. I think it looks nice. That's it.

00:00 10' comparison
00:20 driveway till 4k rpm
00:59 top down tunnel pull
01:07 2' rev measurement