JE Pistons now offers high performance forged pistons for the '94 -'05 Mazda Miata. Low compression (9.0:1) turbo/supercharger compatible pistons are available to suit 83.5mm, 84mm, and 84.5mm bores. High quality carbon steel wrist pins and wire locks are included. Each piston is CNC machined from 2618 aluminum alloy for maximum strength. Additional configurations are available by custom order.

New from SRP, Flat Top and Inverted Dome pistons available in a variety of compression ratios. Generous valve reliefs, a new high-silicon 4032 aluminum F.S.R. forging and up to 100 grams lighter than others on the market. Aimed at the naturally aspirated or moderately boosted street/strip consumer. Includes carbon steel wrist pins, locks and rail supports.

High compression, big bore Nitrous pistons for Open Chamber and 18 degree heads. Vertical and Lateral Gas Ports, forced pin oiling, accept low-friction back-cut .043" top rings. Multiple bore/stroke/rod combinations in stock. Includes .180" thick carbon steel pins, locks and rail supports.

.043, .043, 3.0mm ring ring package has been raised for maximum efficiency. Aggressive, lightweight design for naturally aspirated circle track/drag race up to 650 HP. Competition use only, not for street or nitrous use. Approximately 50 grams lighter than previous Tour Series due to new F.S.R. forging. Includes carbon steel pins and wire locks.

New 100mm (.020" over) "donut dish" for 2004+ WRX STi, 2006+ WRX, 2005+ Forester XT, 2005+ Legacy GT optimizes quench area and provides a stronger crown. Offset pin for quiet operation, double forced pin oilers, accumulator grooves and accepts 1.2mm, 1.2mm and 2.5mm rings.

FEA tested to provide a stronger and more rigid platform, new F.S.R. pistons for 1988+ B16, 1994+ B18 / B20 feature radius-cut valve reliefs, optimized quench, double forced pin oilers, accumulator grooves, and accept 1.0, 1.2, and 2.8mm rings. Nearly 20 new part numbers for turbo, all-motor and Nitrous pistons in bore sizes from 81mm to 85mm and compression ratio's from 8.0:1 to 12.8:1.