04-15 WRX STI Extreme Duty De Stroker 99.5mm Std Size Bore 8 5 1 Comp Ratio Pistons by Manley 632000CE 4

Turbo Tuff Piston Set w/ 8.5:1 Compression Ratio & 99.5mm Bore Size for EJ257

High strength 2618 alloy forgings Manley’s Turbo Tuff series of pistons is built to withstand additional power over Standard/Platinum series. Each piston includes higher strength wrist pins for the best most reliable performance.

Measurements

• Bore Size: 99.5mm
• Oversize: STD
• Rod Length: 5.137”
• Stroke: 1.285”mm
• Comp Distance: -18
• Dome Volume: 51cc
• Comp Ratio: 8.5:1
• Piston Type: Dish
• Piston Weight: 439g
• Associated Ring Set P/N: 46995DT

Please Note: The photo on this listing is generic and may not reflect the exact product you will receive, please refer to measurements listed above to ensure fitment or consult your build advisor.

Applications

• 2004-2021 Subaru WRX / STI
• Engine(s): EJ257

What’s In The Box?

• 4 – Piston(s)
• Piston Wrist Pins & Rings Included

Warranty

• Limited Manufacturers Warranty