2004+ Subaru WRX STi 99.5mm Grade A Bore Size Turbo Tuff Pistons with Rings - Single by Manley Performance

Manley pistons are machined of high strength 2618 material. Each design is lightweight yet robust enough to deliver long service life. Perfect ring groove to skirt squareness is achieved through our unique "one fixturing" manufacturing method that assures maximum horsepower. Round wire locks, tool steel wrist pins, and rings are included with every set at no additional charge.

Features

• Pin: Extreme .250" Wall
• Bore Size: 99.5mm (Grade A)
• Rod Length: 5.137"
• Stroke: 79mm Standard Stroke (2.5L)
• Comp Distance: 1.209"
• Dome Volume: -22 cc
• Cylinder Head cc: 51
• Compression Ratio: 8.5:1
• Piston Type: Dish
• Weight: 405 Grams
• Ring Set: 46995DT‑1

Benefits

• Thicker Skirt Wall
• Increased Corner Cross Sections
• Formula Won "Strutted" Forging
• Outboard Pin Bosses
• Offset wrist pin for quiet start-ups

Please Note: These pistons feature skirt diameters that correspond to the OEM Grade A or B bores resulting in a piston to wall clearance range of .0023” - .0031”. Check the bore grades on the top of your block and order the appropriate quantities of Grade A or B pistons. (Sold as -1 individual pieces, not sets.)

Applications

• 2004+ Subaru WRX STi

What's In The Box?

• 1 - Pistons
• 1 - Piston Ring Sets
• 1 - Wrist Pins
• 1 - Wire Locks

Warranty

• Manley products, due to their intended use, are sold without warranty.