Manley Platinum Pistons for F8x BMW M2/M3/M4 N55/S55 (647000C-6) Hallman Sold as a set of

Sold as a set of 16 rings for all 4 pistons

and the tube accommodates the factory mass air sensor

which extends 12 ft

it delivers aggressive sound and improved exhaust flow

Manley Platinum Pistons for F8x BMW M2/M3/M4 N55/S55 (647000C-6) Hallman Sold as a set ofManley Pistons offers a set of six Platinum pistons designed for the F8X BMW M2, M3, and M4 models with 3. 0L N55 or S55 engines with stock bore or +0. 5mm over. The Platinum Series features high strength 2618 alloy forgings, advanced cam and barrel skirt profiles, and durable tool steel wrist pins. Included in each set are wrist pins, rings, and round wire locks. Manley pistons are trusted by professional engine builders for their superior