aFe Silver Bullet Throttle Body Spacers TBS Mazda Miata ND 16-19 L4-2.0L - 46-30001 Diff Covers it arrives from the factory

it arrives from the factory with a sound that’s more restrained than it should be

Direct OEM replacement for factory plastic engine cover

Premium Clamps and Silicone Couplings Provide a Secure Seal

& (1) Diesel Fuel Booster

AutoTecknic introduces the OEM-Spec Carbon Engine Cover for the BMW E46 M3 engineered in pre-preg carbon fiber as a direct replacement for the factory plastic unit (OE #11127838754)

aFe Silver Bullet Throttle Body Spacers TBS Mazda Miata ND 16-19 L4-2.0L - 46-30001 Diff Covers it arrives from the factorySilver Bullet throttle body spacers create turbulence in the air flow at the point just prior entry into the engine increasing horsepower, torque and improving throttle response and fuel efficiency. Silver Bullet throttle body spacers are constructed out of durable T 6061 billet aluminum and using a unique serrated helix entry to create turbulence at the manifold while el iminating the annoying whistle found in other helix only throttle spacers.