ROSS Racing Pistons (Subaru EJ20 and EJ257 DOHC)
Ross Racing Pistons
FREE Delivery Expected by ,
when ordered within hrs and mins
Application
FREE* SHIPPING ON ORDERS OVER $149
90-DAY HASSLE FREE RETURNS
33,000+ 5 STAR REVIEWS
MAP FITMENT GUARANTEE
- Compression Ratio: Based on factory head and gasket
- Ring Grooves: 99885 = 1.0,1.2,2.8 mm 99726 = 1.5,1.5,3 mm
- Tech-Tip: Turbo applications include taper bore pins
- What's Included: Rings, Locks, Pins (H13 non-tapered bore 52100 Bearing steel)
| ENGINE CODE | BORE | RING GROOVES | STROKE | ROD LGTH | HEAD CC | C.H. | COMP RATIO | DOME VOLUME | GRAM WT. | PART NO. |
| EJ20 ( WRX ) | 3.642 ( 92.5 mm ) | 1.0, 1.2, 2.8 mm | 2.952 | 5.135 | 45.0 | 1.275 | 8.5 | -12.0 | 375 | 99885 |
| EJ25 ( DOHC ) | 3.937 ( 100 mm ) | 1.5, 1.5, 3.0 mm | 3.110 | 5.135 | 48.0 | 1.192 | 8.5 | -22.5 | 387 | 99726 |
