Supertech Nissan 6mm Viton Exhaust Valve Stem Seal - Set of 8 2016-bmw-m235i-esi3077937 and the factory lower bolt

and the factory lower bolt location can be a frustrating bolt to install

Sealed Carbon Fiber Airbox: Minimizes heat soak by preventing hot engine bay air from entering the intake

Remove the 10AN ORB plug to expose the stainless steel baffle and connect a 10AN ORB fitting of your choice to create a custom crankcase venting setup

Shortened transition response will improve initial turn-in making the car more agile and feel lighter

2 x Custom Silicon Hoses with OEM Specification Clamps

Supertech Nissan 6mm Viton Exhaust Valve Stem Seal - Set of 8 2016-bmw-m235i-esi3077937 and the factory lower boltSupertech Nissan 6mm Viton Exhaust Valve Stem Seal Set of 8