Use Coupon Code BOOST10 at Checkout!

Due to high volume of orders, please inquire about inventory if it is not directly listed on the product.

Financing available for as low as 0%.

Wiseco Piston Set 100mm Bore 8.9:1 Compression Ratio - 06-14 WRX / 04+ STI

Dedicated 2618 alloy forgings, offset wrist pins, Nitrided/Napier Steel rings, skirt coatings, complex dish and dome designs, special skirt profiles, and other features insure longevity and power with boosted and nitrous engines. 


  • 8.9:1 Compression Ratio
  • Bore (in):3.937 in.
  • Bore (mm):100.000mm
  • Piston Style. . . Show More >

Related Items