Stock Exhaust Diameter?
#3
Lapping = Fapping
iTrader: (13)
Yes. Also 14 gauge. Only the downpipe from the manifold to the first cat is thickwall 11 or 10 gauge 2" OD, which winds up to roughly the same ID as the intermediate pipe. Kinda smart of Mazda, but also kinda small for power levels at anything above stock. And even then I'm thinking 2.25" 11 gauge on a stock 12A would be better.