340LPH High Performance Fuel Pump for Honda Accord and Civic

In this review the 340LPH High Performance Fuel Pump is evaluated for drivers who need a direct-replacement electric pump that also supports upgraded engines. The bottom line: this pump is for Honda owners upgrading fueling for performance or replacement after failure, because it supports up to 600 BHP across naturally aspirated, turbocharged and supercharged setups while retaining OEM-fit intent. The reviewer found the pump's lifetime warranty and USA-based technical support to be the most compelling reasons to consider it for Accord, Civic, Prelude, S2000 and similar models.

Key Features

• High flow capacity: The 340LPH rating gives ample volume for high-power builds and helps maintain pressure under boost for sustained performance.
• Wide application: Specified for many Honda models, it works as a direct replacement or an upgrade for Accord, Civic, Del Sol, Odyssey, Passport, Prelude and S2000 platforms.
• Fuel compatibility: Designed for gasoline or E85 so tuners can switch to ethanol blends without needing a different pump.
• Bypass valve tuning: The bypass valve is set at a relatively high 125.8 psi, offering stable pressure control compared to lower-rated alternatives.
• Lifetime warranty and serialization: Each serialized pump body guarantees a lifetime warranty backed by Kemso, which is a key reassurance for long-term ownership.
• USA-based support: Technical support is provided by US technicians, simplifying troubleshooting and warranty service for domestic buyers.

Who It's For

This pump is best for Honda owners who are upgrading fueling for higher horsepower builds or who want a robust replacement with a long warranty. Enthusiasts running naturally aspirated engines near the high end of stock capability, or those with turbo or supercharger setups up to 600 BHP, will appreciate the high flow and E85 compatibility.

It is less suited to drivers who need a low-flow OEM exact match for mild, stock repairs where simpler, lower-capacity pumps are sufficient. Buyers who are uncertain about fitment should verify vehicle compatibility before purchase, since customers report occasional fit disagreements.

Pros & Cons

Pros

• High flow supports serious power builds up to 600 BHP without immediate starvation concerns.
• Built for gasoline and E85, offering flexibility for tuners and ethanol users.
• Serialized body with a lifetime warranty and USA-based technical support gives strong ownership confidence.
• Many users praised its value, reasonable noise level, and simple installation process.

Cons

• Some buyers reported fitment uncertainty on specific models, so exact vehicle fit should be confirmed prior to installation.
• The pump can be audible during priming for those expecting total silence.

Specifications

Flow Rate	340 LPH
Maximum Support	Up to 600 BHP
Fuel Compatibility	Gasoline and E85
Bypass Valve Pressure	125.8 psi
Warranty	Serialized body with Lifetime warranty
Support	USA-based technicians

Our Verdict

The 340LPH pump is a practical choice for Honda owners who need reliable high-flow fueling with the reassurance of a lifetime warranty and US-based support. It delivers strong value for performance upgrades and E85 conversions, though buyers should double-check fitment for their specific model. For tuners and drivers pushing power toward the 600 BHP range, it is a cost-effective, confidence-inspiring upgrade.

Frequently Asked Questions

Will this pump work with E85?
Yes. The pump is designed for both gasoline and E85 use.

How much power can this pump support?
The manufacturer specifies support up to 600 BHP for naturally aspirated, turbocharged and supercharged setups.

Is there warranty and support?
Yes. Each serialized pump body comes with a lifetime warranty and USA-based technical support.