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6 pistons fully coated pistons. They've been lying in the garage for over a decade hence the white bits on the surface of them, it rubs of easily but I want to leave that to you and your engine builder so that theres no chance of damaging the coating.

https://www.ebay.co.uk/itm/373177900160

People are asking me why I'm putting them there so low. It's really because I just have time at the moment. Not taking offers and not ending early on these, the price is low enough and includes brand new RS4 piston rings fitted by the coaters so the coating wasn't scratched.

Coating is for low friction on the skirts and temperature resistance at the top and bottom. Suitable for keeping temperature down at sustained high rpm on the autobahn, vmax or circuits.

Plenum is 35% bigger than standard and directly relates to rpm you can hold boost until.

Comparison of modded S4 manifold (black) to the RS4 manifold (silver)

RS4 manifold has been provisionally sold and the S4 modified one is for sale

https://www.ebay.co.uk/itm/373192610142