ISR's NB 1.8 turbo hardware kit, minus the turbo. You get the schedule 10 bottom-mount manifold, 304 stainless exhaust components, a chassis-specific intercooler with mounting bracket and polished aluminum piping, and the full AN oil/water/drain plumbing — and you supply a bolt-on GT-style T28 (ISR's intended fit) or a similar T25 with simple modifications.
Like the rest of this kit family, it's designed around an aftermarket ECU running a MAP sensor, intercooler routing needs a 2.5-inch hole drilled, and the oil drain welds into the factory pan with the included 10AN bung. If you'd rather not pick a turbo separately, ISR also sells this same kit with its RS T25/28 turbo included.
- Fitment: 1999-2005 Mazda Miata (NB), 1.8L; bolt-on GT-style T28 intended (turbo NOT included)
- Schedule 10 tubular bottom-mount manifold; 304 stainless exhaust components
- Chassis-specific intercooler with bracket; polished aluminum intercooler piping
- AN oil feed/water lines; AN drain line with 10AN aluminum weld bung for the factory oil pan
- Modular hot pipe fits ISR HKS, GReddy and Tial flanges (sold separately); 2.5 in hole must be drilled for intercooler routing
- Designed for aftermarket ECU with MAP sensor
- Kit includes: manifold, intercooler and piping kit, turbine O2 housing and downpipe, oil/water lines with weld bung, AFM delete intake with air filter
- Competition use only (per ISR): legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways; and also for use in other exempted vehicles.
