WHAT DOES JDM MAZDA RX-7 FD 13B-REW ENGINE FOR SALE MEAN?

Except if other arrangements are made, all Pettit Created engines use the most recent apex seal technological innovation from Mazda, dual sprung 2mm two piece, these seals use an improved electron beam chill hardening approach on the very best portion of the seal the place it contacts the rotor housing surface area, to our know-how this technology