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CP Piston Set 99.5mm Bore 8.2:1 CR (Part Number: )
CP Piston Set 99.5mm Bore 8.2:1 CR (Part Number: )
CP Piston Set 99.5mm Bore 8.2:1 CR (Part Number: )
CP Piston Set 99.5mm Bore 8.2:1 CR (Part Number: )
CP Piston Set 99.5mm Bore 8.2:1 CR (Part Number: )
CP Piston Set 99.5mm Bore 8.2:1 CR (Part Number: )
CP Piston Set 99.5mm Bore 8.2:1 CR
Subaru EJ25 Turbo Models (inc. 2006-2014 WRX / 2004+ STI)
Read 6 Reviews | 6 Q&As
Part # SC7420
$679.00
msrp: $806.00

In stock! Ships same day

Features & Product Details

CP Subaru pistons are available standard or oversized. They are compatible with oversize valves, higher lift cams and high performance rings. CP pistons represent the highest quality and are engineered for maximum power.

STANDARD FEATURES INCLUDE:
-Deep valve relief depth accommodates high lift camshaft
-Made for +1mm valve sizes
-Custom skirt cam and barrel design
-Accumulator grooves
-High strength aluminum forgings
-High performance rings
-Fully CNC machined and balanced to +/- 1 gram
-Wrist pins included at no additional cost
-Double pin oilers, force fed oil ring
-Pick lock grooves for easy lock removal
-Pin fitting included

Specifications

Brand: CP
Anti-Friction Coating: No
Bore Size: 99.50mm
Compression Ratio: 8.2:1
Head Alteration Required: No
Machining Required: No
Material: Forged
Piston Rings Included: Yes
QTY: 4
Wrist Pin Clips: No
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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REVIEWS & CUSTOMER MEDIA

6 Reviews
5 out of 5 Stars
5 Stars
(6)
4 Stars
(0)
3 Stars
(0)
2 Stars
(0)
1 Stars
(0)
Customer Photos and Videos
No user media. You can upload a photo or video of your install by posting a review.
Forged Piston with other upgrades 3 years ago
kung fu tiger
I just finished 500kms breaking in with my new CP forged pistons, upgraded injectors to 1000cc with DW 300C pump and stage 2 racing clutch. I am very satisfied with the results so far and after 1000 kms more i will have it Dyno tested.
  
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1 of 1 people found the following review helpful
Great pistons 4 years ago
geoffrey97817
Didn't notice any slap when cold. Perfect fit right out of the box.
  
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great product 5 years ago
Subiesuperlover
Piston slap when cold
  
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great product 5 years ago
Subiesuperlover
Piston slap when cold
  
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2 of 2 people found the following review helpful
Amazing! 5 years ago
Evans609
Perfect fit with no issues so far. I have almost 30,000km put on them and havent had any trouble. And as always great service from RSD!
  
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QUESTIONS & ANSWERS

  • Q: Dome cc rating?  JDM2 years ago

    Hey can you guys list the dome cc rating on this item.
    • 0 of 0 people found the following answer helpful

      A:  Hi, Piston CC's for shelf piston SC7420 is -21.0cc's

      CP CARRILLO @
        
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    • 0 of 0 people found the following answer helpful

      A:  The piston CC is -21.0cc dish.

      Connor M. @ RallySport Direct 2 years ago  
        
      Was this answer helpful?
  • Q: Hybrid Build.  Abel Conce5 years ago

    Im building a hybrid 2.5 block with 2.0 heads. i'd like to use oem head gasket; what is the compression with this set.
  • Q: pistons and rods  Marcelo6 years ago

    Do pistons and rods need to be balanced before putting them in the engine?
  • Q: Wrist pin clips  m.hoang916146 years ago

    These do not come with wrist pin clips, why not? And where can I get them If I buy these pistons?
    • 0 of 0 people found the following answer helpful

      A:  I am unsure why they do not include the wrist pin clips. CP suggests you use the OEM Subaru clips which can be purchased from your local dealerships parts department.

      Tanner S. @ RallySport Direct 6 years ago  
        
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    • 0 of 0 people found the following answer helpful

      A:  My CP piston set came with wrist pin clips :S

      rotaxmax3
        
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WRX STI Limited Sedan
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2012 Subaru Impreza WRX STI Limited Sedan
2013 Subaru Impreza WRX STI Limited Sedan
2014 Subaru Impreza WRX STI Limited Sedan
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