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Manley Performance Platinum Series Piston Set 99.5mm 9.8:1 (Part Number: )
Manley Performance Platinum Series Piston Set 99.5mm 9.8:1 (Part Number: )
Manley Performance Platinum Series Piston Set 99.5mm 9.8:1 (Part Number: )
Manley Performance Platinum Series Piston Set 99.5mm 9.8:1 (Part Number: )
Manley Performance Platinum Series Piston Set 99.5mm 9.8:1 (Part Number: )
Manley Performance Platinum Series Piston Set 99.5mm 9.8:1 (Part Number: )
Manley Performance Platinum Series Piston Set 99.5mm 9.8:1 (Part Number: )
Manley Performance Platinum Series Piston Set 99.5mm 9.8:1
Subaru EJ25 Models (inc. 2004+ STI / 2006-2014 WRX)
Write a Review | 3 Q&As
Part # 612100C-4
$513.04
msrp: $1,166.00

Only 2 left!

Features & Product Details

Made one too many passes at the drag strip? Or is your engine starting to get a little tired? Not a problem. Manley has provided the gear heads with their Platinum Series Piston Set. These slugs are forged, and feature an anti-friction coating. These are perfect for those of you looking to make some serious power.

These particular pistons come in the 99.5mm sizing, and have a 9.8:1 compression ratio. For your convenience they also come supplied with rings, clips, as well as wrist pins. Give your vehicle some extra muscle with a set of Manley Performance Series Pistons.

Specifications

Brand: Manley Performance
Anti-Friction Coating: No
Bore Size: 99.5mm
Compression Ratio: 9.8:1
Head Alteration Required: No
Machining Required: No
Material: Forged
Piston Rings Included: Yes
QTY: 4
Wrist Pin Clips: Yes
Wrist Pins Included: Yes
Mfgr. Warranty: No Warranty
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days


Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
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WARNING: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.

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QUESTIONS & ANSWERS

  • Q: 05 STI block   Diego 12 months ago

    Are these a direct fit for my 05 STI block? The heads do not have to be built correct ?
    • 0 of 0 people found the following answer helpful

      A:  The heads do not have to be built for these and they are a direct drop in but typically you will want to get the block honed to these pistons.

      Tyler G.
        
      Was this answer helpful?
  • Q: Piston  fcbarajas03625382 years ago

    How much power and boost are this rated for? I'm looking to build a motor that can handle 600whp.
  • Q: Manley Platinum Pistons 99.5  michaelkeleman100382 years ago

    Have a 2013 WRX with a new shortblock coming from Subaru. Thinking of dropping these in. Are you able to get these graded by A or B bores? Will I need to fit the rings? Could I use the stock rings?
    • 0 of 0 people found the following answer helpful

      A:  These are not graded by A or B bores since Manley only uses those grades on individual pistons and not the complete sets. You won't need to use stock rings since these come with their own ring set.

      Chris W. @ RallySport Direct 2 years ago  
        
      Was this answer helpful?

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