TOP JDM MAZDA RX-7 FD 13B-REW ENGINE FOR SALE SECRETS

Except if other preparations are made, all Pettit Developed engines use the most recent apex seal engineering from Mazda, dual sprung 2mm two piece, these seals use an improved electron beam chill hardening method on the top percentage of the seal exactly where it contacts the rotor housing surface, to our knowledge this technology hasn't designed