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Manley Performance 9.8:1 Compression Ratio Pistons | 04-15 Subaru WRX/STI Stroker 99.5mm Standard Bore Size (632500C-4)

Manley Performance 9.8:1 Compression Ratio Pistons | 04-15 Subaru WRX/STI Stroker 99.5mm Standard Bore Size (632500C-4)

SKU:MAN632500C-4

Regular price $7,494.00
Regular price Sale price $7,494.00
(Duties & import taxes included)
Import Duties & Taxes

The displayed price includes import duties and taxes. In principle, no additional payment is required upon delivery. If the shipping carrier nevertheless charges you import duties or taxes upon delivery, please pay the charges first. Shaft Shop will reimburse you for the amount paid.

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Manley has recently released a lineup of Turbo Tuff pistons specifically for the EJ25 engine. By incorporating proven design enhancements from their "Formula-Won" piston forgings, they have created the ultimate Subaru piston that can withstand the harsh conditions of high-boost, high-stress applications while still operating "quietly" enough for a daily driver. < eol>As with all Manley Subaru pistons, these are manufactured from 2618 alloy, feature an offset wrist pin design, include skirt coating, and come with standard 2.500" x 0.180" wall premium chrome moly wrist pins (P/N 42346). A 9310 alloy 0.210" wall pin upgrade is available. Simply order the EXTREME DUTY part numbers in the columns below. These are equipped with 9310 pins (P/N 42546). They include premium steel top rings, Napier-style second rings, and high-tension oil rings for ultimate oil control, along with round wire locks in each set. Recommended clearance: 0.003" for mild boost, 0.0035" for high boost, measured 1.100" from the bottom of the oil ring groove.Manley Subaru EJ257 pistons now include Napier-style second rings and high-tension oil rings (manufactured by Total Seal) for superior oil control.


Before placing your order

〇 Regarding Import Consumption Tax
At the Shaftoya shopping site, we pay the import consumption tax incurred at the time of import on your behalf, so there will be no additional charges beyond the total amount paid at checkout.

Confirmation of Compatibility
Since our entire product database is based on North American vehicles (USDM), please confirm whether the product can be installed on a Japanese domestic vehicle (JDM) before placing your order. (If you are unsure whether a listed product is compatible with your vehicle, please feel free to contact us. Our support team will be happy to look into it for you.)
If you place an order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if products are sorted by selecting the year, manufacturer, and model via the tabs on our top page, it does not necessarily mean they will fit Japanese model vehicles without modification.
All products have been translated into Japanese using translation software. As there may be confusing expressions, please contact us before ordering if you have any questions.

○ Regarding Shipping
Shipping costs are paid at the time of payment. Shipping estimates are calculated automatically once you enter your shipping address on the checkout page. For large items such as body parts, there may occasionally be a significant discrepancy between the automatically calculated shipping cost and the actual shipping cost. In such cases, we will contact you individually via email.

Basically, all products are shipped internationally from our US warehouse. Unlike domestic shipping in Japan, international shipping takes about 7 to 14 days, so please allow sufficient time when placing your order. If you are in a hurry, please contact us in advance to confirm delivery times. Note that all products are transported by air mail. We do not use sea freight.

○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
All products we handle are designed and manufactured outside of Japan. Please understand that they are not compliant with the "Japanese Vehicle Inspection System," and we are unable to provide strength evaluation documents or similar paperwork for these systems. Therefore, all parts are sold for the purpose of "use on circuits, private land, or off-road," and installation and use are at your own risk.

○ Regarding Warranty
Please check the contents of your package immediately upon arrival. As all products are shipped internationally from outside Japan, there is a possibility of shipping damage to the packaging or the product itself. Please understand that we will only provide returns, refunds, or replacements for products with shipping damage, defective products, or incorrect items if notified within 7 days of receipt. Additionally, for products sold through our company, all warranty-related support will be handled "exclusively through us." Please note that we do not provide support through other companies or distributors located within Japan.