Big down pipe (w/ cat delete option)
Stealth and "race" exaust
ECU tuning (for those wanting beyond what Mountune will offer)
Different cold air intake design than Mountunes (looks like they just added more volume to the filter box and another air intake)
Once the limit of the stock turbo/engine is known. Bigger turbo & atleast carrying another brands internals (if they are needed for bigger HP)
Coilovers (if existing ones dont fit)
Im aiming for a reliable 300bhp in this little car.
The widest 15" wheels that fit but don't ruin scrub radius. An affordable AST suspension setup like 949 racing makes for the miata. About 40 more hp if the drivetrain can take it and it can pass basic emissions tests.
Cold air intake, full pipe, not just an elbow
Blow off valve upgrade
downpipe would be nice and free flowing exhaust
hows a gauge pod like the focus st sound? something clean and subtle for the dash