Supertech Forged Pistons NA/NB 1.8L

(6 reviews) Write a Review
$528.00 $483.00
(You save $45.00)

Includes 4 Pistons - Mazda Miata 1990-1993, 1994-1997, 1999-2005

Supertech Pistons are manufactured from extruded high silicone, enhanced 4032 alloy (with additional Cu, Ni & Mg) that had low thermal expansion, excellent wear resistance and higher thermal conductivity. Supertech Pistons, with this alloy, have withstood up to 42psi of boost, with alcohol, without any problems. A two or three step forging process yields a fine structural grain which are then submitted to several machining steps in state of the art CNC machines. Several heat treatments provide the piston with high tensile strength and evenly distributed hardness. Contact reduction grooves are standard, and pin bores are honed and reamed for precise fit. Wrist pins are constructed of cold extruded chrome moly steel for high strength and used with wire clip locks. Finally, the pistons receive a ‘phosphate dry lubricant’ coating to protect the rings against ‘micro-welding’ and enhance lubrication on the skirt/cylinder area.


**Engine internals can not be returned, regardless if the package has been opened. Special circumstances can be reviewed by request but all internals will be returned to the manufacturer for inspection and a restocking fee will apply**

6 Reviews

  • 5
    High Compression!!!

    Posted by Jocko on May 28th 2019

    Recently Bought the Supertech Forged Pistons 10-5-1 compression for my Miata block. Had them professionally installed and my tech was amazed at the quality of the product. Block had to be modified/bored, but he was happy and I will see how happy I am once the motor is fully assembled!

  • 5

    Posted by Diesel on May 27th 2018

    Ordered these pistons had some questions called fab 9 got answers I was looking for still engine is still under construction but the pistons were exactly what I was looking for so far so good quick note I highly recommend fab 9 and the people there they take there time and work with you and help with any questions and they do respond to emails quickly thanks FAB 9 RICH

  • 5

    Posted by Juan Soto on Apr 15th 2018

    Package came on time as expected. Excellent quality and great customer service. Overall 8/8 experience

  • 5
    quality products!

    Posted by Unknown on Jan 26th 2018

    nicely finished pistons. Seems like very good quality

  • 5
    best bang for the buck

    Posted by Woodsy on Nov 17th 2017

    These pistons are beautifully made. Perfect weights, and everything is nice and clean. Came with wrist pins and clips. Usues the wire style C-clips. I also ordered the wiseco rings to go with them. The rings are exactly what you'd expect from wiseco.... nothing but perfection. A nice file to fit ring.

  • 5
    extremely happy

    Posted by Miguel Bejarano on Feb 9th 2017

    Extremely happy with the product I receive. Price is right and had an amazing experience dealing with the folks from Fab9,