Billet Short Shifter Box For Mazda Miata MX-5 NA NB 5 6 Speed Gearbox MX5 Turbo Boost it replaces the factory exhaust

it replaces the factory exhaust from the catalytic converter back

Improved tuning flexibility for race applications

Dyno graphs are provided to show the intake's effectiveness against its competitors

QuickStart Guide (A5)

so if you want a lighter or heavier resistance

Billet Short Shifter Box For Mazda Miata MX-5 NA NB 5 6 Speed Gearbox MX5 Turbo Boost it replaces the factory exhaustBillet Short Shifter Box For Mazda MX 5 NA NB 5 6 Speed Gearbox MX5 IRP Compatible with all Mazda MX 5 NA and NB 6 speed gearboxes featuring a standard H pattern shift, this shifter ensures that the coupling system and everything else remains completely untouched. Fits NA NB 5 Speed & NB1 6 Speed: Shaft Tip: 15mm Diameter Turret Hole: 19mm Diameter Installation is a breeze! With only basic knowledge and skills required, it fits the original mounting