K, so many questions...
yes is 2.5", yes its loud lol, yes I can legally supercharge the miata with moss motor's carb legal kits.
The whole thing of whats illegal and whats not is what changes emissions. Exhaust change isn't ilegal unless its really loud or if you removed a cat, due to emissions. FI systems alter emissions, this is why they're usually not legal, however if you buy a full kit that was designed around keeping the emission levels where they are suppose to be, you're good. Samething applies to motor swaps here, yes they can be legal but its pretty expensive on top of the cost of swapping. You just have to setup the emissions up properly for the motor in question in your car, this takes multiple tests from a state ref and multiple parts you wouldn't need for a illegal swap, but once you pass and get approved, your motor swap is now legal and you can't get s*** from po po.
Lot of explaining. lol. But yeah, I got the exhaust installed, sounds great but is pretty loud. The little muffle does look ricey off the car, but on the car it fits in perfectly. If you through the same size on a larger car, it'd look like a rice fart can for sure. However, the exhaust IS NOT slammed friendly. The res is pretty fat and its placement sits is probably .2" off the ground. I drove maybe 15mi since install and I've already shaved it down a lot. lol. I hope it doesn't get a hole in it but thinking realistically, it probably will.
SLAMMED FO LIFE
