AMS Performance -6AN to -6AN Inline Fuel Pulsation Damper

Billet 6061 Aluminum Inline Fuel Pulsation Damper for High-Pressure Fuel Pump NVH Reduction

The AMS Performance AMS.00.07.0002-2 Inline Fuel Pulsation Damper is an engineered solution for reducing fuel line hammering, noise, vibration, and harshness caused by pressure spikes in high-performance fuel systems. Built around a billet 6061 aluminum body with a fully anodized gloss black finish, the AMS.00.07.0002-2 uses an internal high-flow stainless steel valve to absorb rapid pressure pulses generated by the opening and closing of high-pressure fuel injectors and the operation of upgraded high-pressure fuel pumps. The -6AN female inlet to -6AN male outlet configuration integrates cleanly into AN fuel line plumbing commonly used in performance builds. This is a direct bolt-in solution for AMS VR30DDTT fuel system applications and fits any high-performance plumbing setup using -6AN fittings.

Key Features

• Billet 6061 aluminum body with fully anodized gloss black finish for durability and clean aesthetics
• Internal high-flow stainless steel valve absorbs fuel pressure pulses without restricting flow
• -6AN female inlet to -6AN male outlet for direct integration into AN fuel line plumbing
• Eliminates or significantly reduces fuel line hammering noise at idle and across RPM ranges
• Stabilizes fuel pressure for more consistent injector performance under load
• Direct bolt-in for AMS VR30DDTT high-pressure fuel pump applications
• Compatible with gasoline and ethanol fuel blends
• Designed and manufactured by AMS Performance in the USA

Specifications

What's Included

• 1x AMS Performance AMS.00.07.0002-2 inline fuel pulsation damper
• Installation instructions

Note: AN fittings and fuel line are not included. The -6AN female inlet and -6AN male outlet are part of the damper body itself.

Frequently Asked Questions

Fuel line hammering is caused by rapid pressure spikes inside the fuel system generated by the opening and closing of fuel injectors and the pulsing action of high-pressure fuel pumps. In high-performance setups with upgraded pumps or injectors, these spikes are more pronounced and can produce audible ticking or knocking sounds, fluctuating fuel pressure readings, and increased stress on fuel system components. The AMS.00.07.0002-2 uses an internal stainless steel valve that absorbs these pressure pulses before they propagate through the fuel line, reducing or eliminating the noise and pressure variation at the source.

The AMS.00.07.0002-2 is the recommended pulsation damper for vehicles running the AMS Stage 3 High Pressure Fuel Pump on the Infiniti Q50/Q60 VR30DDTT platform and for the Nissan Z with the AMS Stage 3 High Pressure Fuel Pump and AMS Fuel Filter. For Stage 1 and Stage 2 applications on the Q50/Q60 and Z, the AMS.00.07.0002-3 with a 5/16 Quick Connect inlet is the correct part. Verify your specific pump stage before ordering.

The AMS.00.07.0002-2 uses a -6AN female inlet and -6AN male outlet, making it the correct choice for fuel systems already plumbed with -6AN lines. The AMS.00.07.0002-3 uses a 5/16 Quick Connect inlet and -6AN male outlet, which matches the factory fuel line connector format used on specific AMS Stage 1 and Stage 2 pump kits for the Infiniti Q50/Q60 and Nissan Z. Choose the variant that matches your fuel line termination style.

Yes. The AMS.00.07.0002-2 is compatible with any high-performance fuel system plumbed with -6AN fittings where fuel pulsation NVH is a concern. While AMS specifically recommends it for VR30DDTT-based builds, the damper's design is universal to -6AN fuel line plumbing and works on any platform where fuel hammering is present.

No. The internal stainless steel valve is a high-flow design specifically selected to absorb pressure pulses without creating a restriction in the fuel supply line. AMS engineers this damper for high-pressure, high-flow performance applications where any restriction at the high-pressure pump outlet would negatively affect fuel delivery. Flow capacity is maintained at the level required by the pump and injector combination it is designed to work with.

Yes. The billet 6061 aluminum body, anodized finish, and stainless steel internal valve are all compatible with E85 and other ethanol fuel blends. E85 is more corrosive than gasoline and requires components specifically designed to resist ethanol degradation. The materials used in the AMS.00.07.0002-2 are appropriate for long-term use with ethanol fuels.

The -6AN female inlet connects to the high-pressure fuel pump outlet side, and the -6AN male outlet connects toward the fuel rail or injectors. The damper is most effective when placed as close to the source of the pressure pulse as possible, which is typically immediately downstream of the high-pressure fuel pump. Refer to the included installation instructions for the specific orientation and location recommended for your application.

Beyond the audible knocking or ticking, repeated fuel pressure spikes can introduce variation in injector pulse timing and duration, which can affect fueling consistency especially at idle and low RPM. Over time, unchecked pressure spikes can also stress fuel line connections and high-pressure pump components. The AMS.00.07.0002-2 addresses both the noise symptom and the underlying pressure instability, contributing to smoother, more consistent fuel delivery across all operating conditions.

Installation Notes

1. Relieve fuel system pressure before disconnecting any fuel lines to prevent fuel spray.
2. Identify the high-pressure fuel line between the high-pressure fuel pump outlet and the fuel rail on your vehicle.
3. Connect the -6AN female inlet side of the AMS.00.07.0002-2 to the pump outlet fitting using an appropriate -6AN adapter or line.
4. Connect the -6AN male outlet side to the fuel rail inlet line.
5. Ensure all fittings are wrench-tight. Do not overtighten AN fittings as this can damage the sealing flare.
6. Check for fuel leaks with the engine running at idle before performing any performance driving.
7. Inspect the fitting connections for leaks again after the first heat cycle of the engine.

WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.