Subaru 2004+ Impreza STI , 2005+ Forester XT, Legacy GT, 2006+ WRX EJ257

  • Time Attack FSR Pistons now available!
  • 2618 T6 high tensile forged aluminum
  • JE designs are specifically engineered for extreme applications up to, and including, professional competition. In this environment, the higher compression ratios, highest boost or heavy nitrous usage necessitate the higher tensile strength 2618 aluminum alloy
  • Dome and dishes feature smooth flowing radii for excellent flame travel
  • 1.2 x 1.2 x 2.5mm ring widths
  • .905 x 2.250 straight wall carbon steel wrist pin provided
  • Pin fitting and Tru Arc locks included
  • Rings Now Included
Part # Brand Bore Stroke Rod Deck Head CC Comp. Ratio Comp. Height Crown Vol. Ring Set Head Type Stock Action
291064 JE Pistons 3.937 3.268 5.138 7.913 57.0 8.5 1.130 -21.50 JG4901-3937 Inv Dome/Dish In stock
291064 JE Pistons 3.937 3.268 5.138 7.913 51.0 9.1 1.130 -21.50 JG4901-3937 Inv Dome/Dish In stock
361328 JE Ultra Series 3.927 3.110 5.138 7.913 57.0 8.5 1.209 -16.90 JG4901-3927 Inv Dome/Dish In stock
361328 JE Ultra Series 3.927 3.110 5.138 7.913 57.0 9.1 1.209 -16.90 JG4901-3927 Inv Dome/Dish In stock
296348 JE Pistons 3.927 3.110 5.138 7.913 57.0 8.5 1.209 -17.00 JG4901-3927 Inv Dome/Dish Back Order
296348 JE Pistons 3.927 3.110 5.138 7.913 51.0 9.1 1.209 -17.00 JG4901-3927 Inv Dome/Dish Back Order
291061 JE Pistons 3.918 3.110 5.138 7.913 57.0 8.5 1.209 -16.50 JG4901-3917 Inv Dome/Dish In stock
291061 JE Pistons 3.918 3.110 5.138 7.913 51.0 9.1 1.209 -16.50 JG4901-3917 Inv Dome/Dish In stock
310937 JE Pistons 3.927 3.110 5.138 7.913 51.0 10.3 1.209 -7.30 JG4901-3927 Inv Dome/Dish Back Order
310937 JE Pistons 3.927 3.110 5.138 7.913 57.0 9.5 1.209 -7.30 JG4901-3927 Inv Dome/Dish Back Order
286463 JE Pistons 3.937 3.110 5.138 7.913 57.0 8.8 1.210 -15.10 JG4904-3937 Inv Dome/Dish Back Order
291063 JE Pistons 3.918 3.268 5.138 7.913 57.0 8.5 1.130 -20.70 JG4901-3917 Inv Dome/Dish Back Order
291063 JE Pistons 3.918 3.268 5.138 7.913 51.0 9.1 1.130 -20.70 JG4901-3917 Inv Dome/Dish Back Order
361329 JE Ultra Series 3.937 3.110 5.138 7.913 57.0 8.5 1.209 -17.30 JG4901-3937 Inv Dome/Dish In stock
361329 JE Ultra Series 3.937 3.110 5.138 7.913 57.0 9.1 1.209 -17.30 JG4901-3937 Inv Dome/Dish In stock
361331 JE Ultra Series 3.927 3.110 5.138 7.913 57.0 9.5 1.209 -7.30 JG4901-3927 Inv Dome/Dish Back Order
361331 JE Ultra Series 3.927 3.110 5.138 7.913 57.0 10.3 1.209 -7.30 JG4901-3927 Inv Dome/Dish Back Order
310927 JE Pistons 3.918 3.110 5.138 7.913 57.0 8.8 1.210 -14.10 JG4904-3917 Inv Dome/Dish In stock
310938 JE Pistons 3.937 3.110 5.138 7.913 51.0 10.3 1.209 -7.60 JG4901-3937 Inv Dome/Dish In stock
310938 JE Pistons 3.937 3.110 5.138 7.913 57.0 9.5 1.209 -7.60 JG4901-3937 Inv Dome/Dish In stock
361330 JE Ultra Series 3.918 3.110 5.138 7.913 57.0 9.5 1.209 -7.00 JG4901-3917 Inv Dome/Dish Back Order
361330 JE Ultra Series 3.918 3.110 5.138 7.913 57.0 10.3 1.209 -7.00 JG4901-3917 Inv Dome/Dish Back Order
361327 JE Ultra Series 3.918 3.110 5.138 7.913 57.0 8.5 1.209 -16.50 JG4901-3917 Inv Dome/Dish In stock
361327 JE Ultra Series 3.918 3.110 5.138 7.913 57.0 9.1 1.209 -16.50 JG4901-3917 Inv Dome/Dish In stock
291062 JE Pistons 3.937 3.110 5.138 7.913 57.0 8.5 1.209 -17.40 JG4901-3937 Inv Dome/Dish Back Order
291062 JE Pistons 3.937 3.110 5.138 7.913 51.0 9.1 1.209 -17.40 JG4901-3937 Inv Dome/Dish Back Order
256058 JE Pistons 3.937 - - - - - 1.209 -22.20 JG4901-3937 Inv Dome/Dish Back Order
310936 JE Pistons 3.918 3.110 5.138 7.913 51.0 10.3 1.209 -7.00 JG4901-3917 Inv Dome/Dish Back Order
310936 JE Pistons 3.918 3.110 5.138 7.913 57.0 9.5 1.209 -7.00 JG4901-3917 Inv Dome/Dish Back Order
361332 JE Ultra Series 3.937 3.110 5.138 7.913 57.0 9.5 1.209 -7.60 JG4901-3937 Inv Dome/Dish In stock
361332 JE Ultra Series 3.937 3.110 5.138 7.913 57.0 10.3 1.209 -7.60 JG4901-3937 Inv Dome/Dish In stock
245986 JE Pistons 3.917 - - - - - 1.209 -21.20 JG4901-3917 Inv Dome/Dish Back Order
296352 JE Pistons 3.927 3.268 5.138 7.913 57.0 8.5 1.130 -21.10 JG4901-3927 Inv Dome/Dish In stock
296352 JE Pistons 3.927 3.268 5.138 7.913 51.0 9.1 1.130 -21.10 JG4901-3927 Inv Dome/Dish In stock