C.T.I.
Black Diamond Piston Rings For 11-19 Subaru 2.5L 94mm FB25 C.T.I. 13-094-02/D00
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Item Condition
Brand New
Brand: C.T.I.
Coating: DLC (Diamond-Like Carbon / Black Diamond)
Engine: 2.5L 2498CC 152 CID H4 DOHC 4-Cylinder
Certifications: ISO 9001 & IATF 16949
Performance DLC Advantage
DLC (Diamond-Like Carbon) coated piston rings deliver superior performance:
Ultra-high hardness: HV0.05 > 2800
Extremely low friction: < 0.04
Reduces internal friction & wear
Improves sealing efficiency
Helps lower fuel consumption
Extends piston ring service life
*Ideal for high-performance builds and long-term reliability.
Vehicle Fitment:
Subaru: Forester, Legacy, Outback
*Confirm engine code, VIN, and bore size before purchase.
Ring Sizes – STD (mm)
1st Ring: 94 × 1 × 2.85
2nd Ring: 94 × 1 × 3.1
Oil Ring: 94 × 2 × 2.5
* Refer to listing photos for exact parts included
What's Included
1 × C.T.I. 13-094-02/D00 DLC Piston Ring Set
Shipping
Ships same business day
USPS or best available carrier
Warranty & Returns
1-Year Warranty (manufacturing defects only)
30-Day Returns
Item must be unused & in original packaging
Shipping costs may apply
Physical damage must be reported within 48 hours
Buyer Responsibility
Buyer is responsible for verifying correct fitment.
If you are unsure about compatibility, message us before ordering.

