K-Tuned 8AN HP Fuel Pressure Regulator (FPR)
Upgrade your performance fuel system with the K-Tuned 8AN High Pressure Fuel Pressure Regulator, engineered for reliable and precise fuel-pressure control on high-performance Honda and Acura K-Series applications.
Designed for both naturally aspirated and forced-induction setups, this regulator features dual 8 ORB fuel inlet ports, a 6 ORB return port, dedicated 1/8 NPT vacuum and pressure-gauge ports, and an E85/alcohol-compatible diaphragm.
Choose from:
KTD-FPR-08B – FPR Only
Fuel pressure regulator with stainless-steel adjustable mounting bracket.
KTD-FPR-08K – FPR With Fittings & Gauge
Includes the regulator, mounting bracket, required adaptor fittings and 0–100 psi fuel pressure gauge.
✓ Suitable for K-Series engines
✓ N/A and turbo/supercharged applications
✓ E85 & alcohol-based fuel compatible
✓ Dual 8 ORB feed ports
✓ 6 ORB return port
✓ Adjustable stainless-steel mounting bracket
Delivery & Return
We aim to dispatch orders as quickly as possible using reliable UK courier services. Delivery times can vary depending on stock availability, supplier location and the type of product ordered.
Estimated delivery times are shown where available, but these should be treated as a guide rather than a guaranteed delivery date.
Some specialist, made-to-order, imported or supplier-direct performance parts may take longer to arrive. If you need a part by a specific date, we recommend checking availability before ordering.
Once your order has been dispatched, tracking information will be provided where available.
UK Delivery
We deliver throughout the United Kingdom.
Shipping charges are calculated at checkout based on the size, weight and destination of your order. Larger or heavier items may have an additional delivery charge.
Deliveries to the Scottish Highlands, Northern Ireland, Isle of Man, Isle of Wight, Channel Islands and other remote locations may take longer or incur additional charges.
International Delivery
International shipping may be available for selected products and destinations.
Import duties, taxes, customs charges and local handling fees are the responsibility of the customer unless stated otherwise. These charges are not included in the product price or standard shipping cost.
Please check your local import requirements before placing an international order.
Incorrect, Damaged or Faulty Items
Please inspect your order as soon as it arrives.
If your item is damaged in transit, faulty or different from what you ordered, contact us as soon as possible with your order number and clear photographs where relevant.
We will review the issue and advise you of the appropriate next steps.
Vehicle Fitment & Compatibility
It is the customer’s responsibility to check that a product is suitable for their vehicle before installation.
Please verify the vehicle model, year, engine, chassis code, part number and any relevant brake, suspension or drivetrain specification before ordering.
If you are unsure about compatibility, contact us before purchase with your vehicle registration or VIN and the product SKU where possible.
We cannot accept responsibility for incorrect fitment caused by inaccurate vehicle information, non-standard modifications or aftermarket conversions that were not disclosed before purchase.
Special Order & Made-to-Order Products
Some performance parts are specially ordered, imported, customised or manufactured specifically for a customer.
These products may be subject to different cancellation and return conditions. Where applicable, this will be confirmed before the order is processed.
Refunds
Approved refunds are normally issued back to the original payment method after the returned item has been received and inspected.
Original delivery charges and return postage may not be refundable unless the item is faulty, damaged or supplied incorrectly.
Please allow time for your bank or payment provider to process the refund after it has been issued.
Need Help?
If you have any questions about delivery, returns or product compatibility, please contact Performance Car Parts UK before ordering. We will be happy to help you check product details and fitment information.
K-Tuned 8AN High Pressure Fuel Pressure Regulator
Take control of your performance fuel system with the K-Tuned 8AN High Pressure Fuel Pressure Regulator (FPR), available as either the standalone regulator KTD-FPR-08B or the complete KTD-FPR-08K fitting and gauge kit.
Developed for high-performance fuel systems, the K-Tuned FPR provides the fuel-flow capacity and adjustability required for demanding naturally aspirated, turbocharged and supercharged applications.
Its high-flow configuration uses two 8 ORB fuel feed ports positioned at the top of the regulator together with a 6 ORB return port at the bottom. This makes it suitable for a wide range of aftermarket fuel-system configurations while providing the capacity required by many street-performance and basic boosted builds.
Designed for Performance Fuel Systems
Consistent fuel pressure is essential when increasing engine power or upgrading injectors, fuel pumps and fuel rails.
The K-Tuned regulator allows a properly configured return-style fuel system to maintain controlled fuel pressure while accommodating increased fuel-flow requirements.
A dedicated 1/8 NPT vacuum port allows manifold pressure reference, while an additional 1/8 NPT pressure-gauge port provides a convenient location for monitoring fuel pressure.
E85 & Alcohol Fuel Compatible
K-Tuned uses a high-quality diaphragm that is suitable for E85 and alcohol-based fuels, making this regulator particularly useful for modified vehicles running alternative performance fuels.
This makes the FPR a suitable choice whether your K-Series build runs conventional petrol or an E85-compatible performance fuel system.
Suitable for Naturally Aspirated & Boosted K-Series Builds
The K-Tuned 8AN FPR can be used across Honda and Acura K-Series engine installations and supports both:
- Naturally aspirated performance builds
- Turbocharged applications
- Supercharged applications
- Upgraded fuel pumps
- Larger injectors
- Aftermarket fuel rails
- Return-style fuel systems
- E85-compatible fuel systems
- Motorsport and performance applications
Its 8 ORB feed and 6 ORB return configuration provides ample capacity for most street-performance setups and basic boosted vehicles.
Adjustable Stainless-Steel Mounting Bracket
Each regulator is supplied with a stainless-steel mounting bracket.
The adjustable mounting arrangement gives installers flexibility when positioning the regulator within modified engine bays where available space and fuel-line routing can vary considerably.
KTD-FPR-08B – Fuel Pressure Regulator Only
Choose KTD-FPR-08B when you already have the appropriate AN fittings and fuel-pressure monitoring equipment for your installation.
This version includes the K-Tuned 8AN high-pressure fuel pressure regulator and stainless-steel mounting hardware without the additional fitting and gauge package.
It is ideal for custom fuel-system builds where the installer wants to select their own fittings and gauge arrangement.
KTD-FPR-08K – Fuel Pressure Regulator With Fittings & Gauge
Choose KTD-FPR-08K for the more complete installation package.
In addition to the regulator and mounting bracket, the kit includes compatible adaptor fittings and a 100 psi fuel-pressure gauge.
The fitting package includes:
- -8AN port plug
- 6AN to 8 ORB adaptor
- 4AN to 6 ORB adaptor
- 0–100 psi fuel pressure gauge
This option is particularly convenient when building or upgrading a complete K-Series fuel system.
Key Features
- Genuine K-Tuned 8AN high-pressure fuel pressure regulator
- Dual 8 ORB fuel feed ports
- 6 ORB fuel return port
- 1/8 NPT vacuum reference port
- 1/8 NPT fuel-pressure gauge port
- E85-compatible internal diaphragm
- Suitable for alcohol-based fuels
- Suitable for naturally aspirated engines
- Suitable for forced-induction applications
- Stainless-steel mounting bracket included
- Adjustable mounting arrangement
- Available as regulator-only or complete fittings-and-gauge kit
- Designed for high-performance fuel systems
Why Upgrade Your Fuel Pressure Regulator?
Modified engines can demand considerably more fuel than a standard fuel system was originally designed to supply.
High-flow fuel pumps, larger injectors, aftermarket fuel rails and forced induction can therefore require an appropriately configured adjustable fuel-pressure regulator.
The K-Tuned 8AN FPR provides a high-flow solution designed for performance fuel systems while giving builders the flexibility required for custom fuel-line routing and installation.
Whether you are building a naturally aspirated K20, turbocharged K24, K-swap project or dedicated track car, the K-Tuned regulator provides a strong foundation for a professionally configured return-style fuel system.
Applications
Designed primarily for Honda and Acura K-Series engines, including compatible K20 and K24 installations.
Suitable for naturally aspirated and forced-induction applications.
Because modified and engine-swapped vehicles can use many different fuel-system configurations, fuel-line sizes, fittings and fuel-pressure requirements should always be confirmed before installation.
Delivery & Returns
UK Delivery
We deliver throughout the United Kingdom using reliable courier services. Delivery times vary depending on stock availability, supplier location, product size and destination.
Shipping charges are calculated at checkout where applicable. Larger, heavier, specialist or supplier-direct items may incur additional delivery charges.
Dispatch Times
We aim to dispatch in-stock products as quickly as possible. Some specialist, imported, made-to-order or supplier-direct performance parts may require additional processing time.
If you require a product by a specific date, please contact us before ordering so availability can be checked.
Tracking
Tracking information will be provided where available once your order has been dispatched.
International Delivery
International shipping may be available for selected products and destinations. Import duties, taxes, customs charges and local handling fees are normally the responsibility of the customer unless otherwise stated.
Returns
Please contact us before returning an item. Products should be returned in accordance with our returns policy and in suitable condition where applicable.
Special-order, made-to-order, customised or imported products may be subject to different cancellation and return conditions.
Damaged, Faulty or Incorrect Items
Please inspect your order as soon as it arrives. If an item is damaged, faulty or different from what you ordered, contact us promptly with your order number and clear photographs where relevant.
Vehicle Fitment
It is the customer’s responsibility to confirm product compatibility before installation. If you are unsure, contact us with your vehicle registration or VIN and the product SKU before ordering.
