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D.S.S. XPA-Series Piston Rings

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D.S.S. Competition Engine offers a wide range of piston rings—including their popular XPA Series. These steel and iron ring sets are ideal for serious street or wild power adder applications. They're available in countless bore sizes for fitment on V8, L8, and W8 engines. Some rings are file fit, allowing you to control the ring end gap; they can be custom fit for the cylinder by decreasing the ring gap.

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Results 1 - 25 of 126

Xtream Power Adder,Steel Ring set. Gas Nitride, Steel 1.2 MM top ring with 1.2 MM Napier 2nd ring and Std Tension 3MM oil rings. 8 Cylinder set.

Part Number: DMS-RSXP6004030

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Xtream Power Adder,Steel Ring set. Gas Nitride, Steel 1.2 MM top ring with 1.2 MM Napier 2nd ring and Std Tension 3MM oil rings. 8 Cylinder set.

Part Number: DMS-RSXP6004165

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Xtream Power Adder,Steel Ring set. Gas Nitride, Steel 1.2 MM top ring with 1.2 MM Napier 2nd ring and Std Tension 3MM oil rings. 8 Cylinder set.

Part Number: DMS-RSXP6004155

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Xtream Power Adder,Steel Ring set. Gas Nitride, Steel 1.2 MM top ring with 1.2 MM Napier 2nd ring and Std Tension 3MM oil rings. 8 Cylinder set.

Part Number: DMS-RSXP6004040

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

PISTON RING SET

Part Number: DMS-RSXP6003810

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

DSS Racing Performance Gas Nitrided Stainless Steel Ring set.

Part Number: DMS-S0010

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Piston Rings, XPA-Series, Gas Nitrided, 3.700 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: DMS-RSXP2003700

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Xtream Power Adder,Steel Ring set. Gas Nitride, Steel 1.2 MM top ring with 1.2 MM Napier 2nd ring and Std Tension 3MM oil rings. 10 Cylinder set.

Part Number: DMS-RSXP6104035

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Xtream Power Adder,Steel Ring set. Gas Nitride, Steel 1.2 MM top ring with 1.2 MM Napier 2nd ring and Std Tension 3MM oil rings. 10 Cylinder set.

Part Number: DMS-RSXP6104040

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Xtream Power Adder,Steel Ring set. Gas Nitride, Steel 1.2 MM top ring with 1.2 MM Napier 2nd ring and Std Tension 3MM oil rings. 8 Cylinder set.

Part Number: DMS-RSXP6064060

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

DSS Racing Performance Gas Nitrided Stainless Steel Ring set.

Part Number: DMS-S0009

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Piston Rings, XPA-Series, Gas Nitrided, 3.582 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: DMS-RSXP20035825

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Piston Rings, XPA-Series, Gas Nitrided, 3.952 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: DMS-RSXP20035925

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Piston Rings, XPA-Series, Gas Nitrided, 4.030 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: DMS-RSXP20040305

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Piston Rings, XPA-Series, Gas Nitrided, 4.040 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: DMS-RSXP20040405

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Piston Rings, XPA-Series, Gas Nitrided, 4.060 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: DMS-RSXP20040605

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Piston Rings, XPA-Series, Gas Nitrided, 3.572 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: DMS-RSXP20035725

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

Piston Rings, XPA-Series, Gas Nitrided, 3.552 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: DMS-RSXP20035525

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Estimated Ship Date: Jan 12, 2026 if ordered today

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Estimated Ship Date: Jan 12, 2026 if ordered today

DSS Racing Performance Gas Nitrided Stainless Steel Ring set.

Part Number: DMS-S0017

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Estimated Ship Date: Jan 21, 2026 if ordered today

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Estimated Ship Date: Jan 21, 2026 if ordered today

DSS Racing Performance Gas Nitrided Stainless Steel Ring set.

Part Number: DMS-S0019

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Estimated Ship Date: Jan 21, 2026 if ordered today

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Estimated Ship Date: Jan 21, 2026 if ordered today

Piston Rings, XPA-Series, Gas Nitrided, 4.000 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: DMS-RSXP20040005

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

Xtream Power Adder,AP-Steel Ring set. Features AP Steel 1.5mm top ring with Napier 1.5mm 2nd ring and Std Tension 4mm oil rings. 8 Cylinder set.

Part Number: DMS-RSXP4004190

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Estimated Ship Date: Jan 22, 2026 if ordered today

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Estimated Ship Date: Jan 22, 2026 if ordered today

Xtream Power Adder,AP-Steel Ring set. Features AP Steel 1.5mm top ring with Napier 1.5mm 2nd ring and Std Tension 4mm oil rings. 8 Cylinder set.

Part Number: DMS-RSXP4003910

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Estimated Ship Date: Jan 22, 2026 if ordered today

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Estimated Ship Date: Jan 22, 2026 if ordered today

DSS Racing Performance Gas Nitrided Stainless Steel Ring set.

Part Number: DMS-RSXP4063910

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

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Estimated Ship Date: Jan 22, 2026 if ordered today

DSS Racing Performance Gas Nitrided Stainless Steel Ring set.

Part Number: DMS-RSXP6003750

Not Yet Reviewed

Estimated Ship Date: Jan 22, 2026 if ordered today

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Estimated Ship Date: Jan 22, 2026 if ordered today

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