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Features & Product Details
RallySport Direct proudly carries a great selection of CP Pistons for those of you who need a strong and durable piston in a high-horsepower build.
Here, you are looking at the CP Piston Set. These pistons will come provided with rings and wrist pins and are designed to sustain the perils of high horsepower and high boost builds.
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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QUESTIONS & ANSWERS
Q: Forged pistond Anthony2 years agoHello, I am considering purchasing the 100mm CP forged pistons for my 05 STI. I was just wondering, since the bore on my engine is apx. 99.5mm and I'm purchasing oversized pistons; how do I know what to bore my cylinder walls to in order to compensate for the expansion of forged pistons? Thanks in advance! -Anthony
0 of 0 people found the following answer helpful
A: CP piston's to wall clearance is already built into the design. CP's recommended P2W they suggest is .003 on the Subaru engines. You can safely hone the piston bore to 100mm (3.937"). The turn diameter on the piston will be 3.934Brady R @ RallySport Direct 2 years ago
- 0 of 0 people found the following answer helpful