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Part number: P4-SU9950-N1
Product Details
Supertech Performance P4-SU9950-N1 Supertech Pistons
Products specifications
Bore 99.50mm
Comp Height 1.208"(30.7mm)
Comp Ratio 10.5:1
Dome/Dish Vol -1cc
Gram Weight 390g
Head CCs 56
Oversized STD
Pin Dia 23mm(.905")
Skirt Round

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.

Compression ratios are computed with .030 head gasket and .010 deck unless indicated in each case.

Supertech Pistons are sold Per Piston. For Example, when order for a 4 Cylinder Model, order Quantity: 4

Reviews
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S
Order 12486. Item was simple to find and the website made it very easy to navigate. I appreciated the ability to pay with paypal and email notifications gave me confidence that everything was taken care of properly.
R
Quick n easy! Istallation is a bit rough but the product is very much worth it.
Y
shipment came on time, and was nicely wrapped.
B
Just received my order! I placed the order Sunday night and received it on Tuesday, super fast shipping! The SS vent caps look great and arrived in perfect condition. Thanks!
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Fitment
Subaru Impreza
2012 Subaru Impreza WRX / WRX Limited / WRX Premium / WRX STI / WRX STI Limited / WRX STI Special Edition / WRX TR
2011 Subaru Impreza WRX / WRX Limited / WRX Premium / WRX STI / WRX STI Limited / WRX STI Special Edition / WRX TR
2010 Subaru Impreza WRX / WRX Limited / WRX Premium / WRX STI / WRX STI Limited / WRX STI Special Edition / WRX TR
2009 Subaru Impreza WRX / WRX Limited / WRX Premium / WRX STI / WRX STI Limited / WRX STI Special Edition / WRX TR
2008 Subaru Impreza WRX / WRX Limited / WRX Premium / WRX STI / WRX STI Limited / WRX STI Special Edition / WRX TR
2007 Subaru Impreza WRX / WRX Limited / WRX Premium / WRX STI / WRX STI Limited / WRX STI Special Edition / WRX TR
2006 Subaru Impreza WRX / WRX Limited / WRX Premium / WRX STI / WRX STI Limited / WRX STI Special Edition / WRX TR
2005 Subaru Impreza WRX STI / WRX STI Limited / WRX STI Special Edition
2004 Subaru Impreza ALL / WRX STI / WRX STI Limited / WRX STI Special Edition
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