Boundary VQ-S2-DE-M High Flow Billet Oil Pump Assembly Nissan VQ35DE 3.5L

The Boundary VQ-S2-DE-M is a high-flow billet oil pump assembly engineered for the Nissan VQ35DE 3.5L engine. Built on a special Nissan OEM housing, this pump features Boundary's mirror-finished billet oil pump gear set and delivers 30% more oil flow than OEM or "hi rev" pumps, providing superior lubrication throughout the entire RPM range.

The stock VQ oil pump gear design is a known weak point, relying on an asymmetric tooth profile that places excessive stress at the root of the teeth. Boundary Engineering started with a clean-sheet design, eliminating that weakness and incorporating a race-proven formulation of billet steel and specialized heat treatment. Unlike OEM pumps that use sintered powdered steel, Boundary's gears are machined from billet steel, offering dramatically higher strength and durability.

Key Features:

• Nissan OEM housing with mirror-finished billet steel oil pump gear set
• 30% greater oil flow than OEM or "hi rev" pump designs
• High-flow billet steel backplate with anti-cavitation properties, deeper porting, and 5th-axis finished ramps
• Stainless Torx head fasteners replace stock hardware
• All fasteners torqued to spec with Loctite applied to prevent loosening or back-out
• Anaerobic sealant applied to critical areas to boost pump-up speed and reduce aeration
• Assembly lubricant applied to all critical surfaces for fast oil flow on startup
• Optional shimming available: +10 PSI (1 shim), +20 PSI (2 shims), +30 PSI (3 shims)
• Blueprinted and issued with a specification sheet
• Validated in multiple extreme-horsepower naturally aspirated and turbocharged applications

Every Boundary pump undergoes a rigorous quality process including complete disassembly, ultrasonic cleaning, air blast, hand inspection, and hand de-burring before final assembly. The VQ-S2-DE-M is a proven upgrade for performance-oriented street and track builds on Nissan VQ35DE-powered vehicles.