Automotive Parts and Accessories: CP Pistons Forged Pistons Subaru EJ257 WRX STI 3.927 (99.75mm) Bore / +0.010(+0.25mm) Size / 8.2:1 Compression Ratio - CP Pistons
Automotive Parts and Accessories: CP Pistons SC7420 Piston and Ring Set for Subaru (Set of 4) - CP Pistons
Automotive Parts and Accessories: CP Pistons Forged Pistons Subaru EJ20 WRX 3.622 (92.0mm) Bore / STD Size / 8.5:1 Compression Ratio - CP Pistons
Automotive Parts and Accessories: Manley Platinum Series Forged Pistons for the Subaru EJ257 100.0mm / +0.5mm Size / 9.8:1 Compression Ratio - Manley
Automotive Parts and Accessories: CP Pistons Forged Pistons Subaru EJ20 WRX 3.661 (93.0mm) Bore / +0.040(+1.0mm) Size / 8.5:1 Compression Ratio - CP Pistons
Automotive Parts and Accessories: Wiseco K598M100AP 100mm Bore 4V Piston Set for Subaru EJ257 - Wiseco
Automotive Parts and Accessories: Supertech Pistons - IMPREZA - - - P4-SU9950-N1 - ALL - Supertech Performance
Automotive Parts and Accessories: JE Pistons and Rings 99.75 Bore 8.5:1 Comp for Subaru EJ257 Block W/ EJ20 Head - JE Pistons
Automotive Parts and Accessories: Cosworth Forged Piston Set 99.50 for Subaru 2.5 STI WRX EJ25 04+ - Cosworth
Automotive Parts and Accessories: Manley Platinum Series Forged Pistons for the Subaru EJ257 99.75mm/ +0.25mm Size / 8.5:1 Compression Ratio - Manley
Automotive Parts and Accessories: CP Pistons Forged Pistons Subaru EJ257 WRX STI 3.9175 (99.5mm) Bore / STD Size / 8.2:1 Compression Ratio - CP Pistons
Automotive Parts and Accessories: CP Pistons Forged Pistons Subaru EJ257 WRX STI 3.937 (100.0mm) Bore / +0.020(+0.5mm) Size / 8.2:1 Compression Ratio - CP Pistons
Automotive Parts and Accessories: Wiseco Subaru EJ257 WRX/STI 4v Dish -19cc 99.5 Piston Shelf Stock Kit - Wiseco
Automotive Parts and Accessories: Godspeed Forged Aluminum 29g Type 3 50mm Lug Wheel Nuts 20 Pcs Set M12x1.5mm Gold Color - Godspeed
Automotive Parts and Accessories: Godspeed Forged Aluminum 29g Type 3 50mm Lug Wheel Nuts 20 Pcs Set M12x1.25mm Black Color - Godspeed
Automotive Parts and Accessories: CP Pistons SC7400 Piston and Ring Set for Subaru - CP Pistons
Automotive Parts and Accessories: CP Pistons SC7426 Piston and Ring Set for Subaru - CP Pistons
Automotive Parts and Accessories: Manley 620000C-4 Dish Piston with Rings - Manley
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Subaru Forged Pistons Popular Q&A
Q: How do i know if my subaru gc8 ej20 pistons are forged without op...
A: If the engine is factory stock, they are not forged. If the engine is not factory stock there is no other way to tell if they are forged than by open inspection... Read More »
Q: What Are Forged Pistons?
A: Most original equipment manufacturer (or OEM) and aftermarket pistons are cast pistons. These are made through a process called "gravity die casting. Put simply... Read More »
Q: What Are Forged Pistons?
A: Cast Pistons Most original equipment manufacturer (or OEM) and aftermarket pistons are cast pistons. These are made through a process called "gravity die castin... Read More »
Q: What are forged pistons?
A: The difference between a cast and forged piston is the way it is made. A cast piston is made by pouring or injecting molten aluminum into a mold and letting it ... Read More »
Q: What are forged pistons?
A: The difference between a cast and forged piston is the way it is made. A cast piston is made by pouring or injecting molten aluminum into a mold and letting it ... Read More »