K-Series Fuel Rail in Satin Black Finish

Fittings sold separately.

Whether upgrading for additional fuel delivery needs, to run upgraded fuel lines, or to simply clean up your engine bay, ACUiTY's K-Series High-Flow Fuel Rail is the most versatile and refined solution available. With it's 1/8 NPT port on top, -8 o-ring boss (ORB) ports on both ends and another -8 ORB port located at the middle of the rail, there are a variety of ways you can set the rail up for your car (see "Fitment Info" for application-specific fitting requirements). Each rail is constructed from 6061-T6 aluminum and has a satin-texture, anodized finish with laser-etched technical info and logos. 

Among the rails' other features are countersunk mounting screw holes and supplied class 10.9+ hardware to replace the OEM studs. Each rail is also supplied with a stainless steel 1/8 NPT plug in case a top-mounted fuel pressure gauge is used. The end locations for the -8 ORB ports have been specifically machined to help reduce the likelihood of wrench damage to the rail's cosmetic finish during installation. As an added bonus rarely found on aftermarket rails, the rail allows the end-user to retain the OEM injector clips if you wish, just for some added peace of mind.

Tons of possible configurations (using optional fittings, sold separately). See the "Fitment Info" tab for a list of fittings by vehicle and configuration.

Side-feed for OEM fuel lines on many vehicles:

Center-feed using a -6AN line:

Return setup with -6AN line for k-swaps and high horsepower applications: 

Return setup with -8AN line for k-swaps and very high horsepower applications:

Multiple fuel pressure gauge mounting options:

Mount a gauge on top using the 1/8 NPT Port, or plug the port if you prefer:

Or mount a gauge on the side of the rail using the 1913-F05 adapter fitting (sold separately):

Design retains OEM injector mounting clips for extra peace of mind:

ACUiTY has made 6 unique fittings (sold separately) available for the rail to help you customize it exactly to your needs. The fittings are as follows:

• 1913-F02: -8 ORB Plug
• 1913-F03: -6AN adapter
• 1913-F04: -8AN adapter
• 1913-F05: 1/8 NPT adapter
• 1913-F06: 5/16" Quick-Disconnect adapter, short
• 1913-F07: 5/16" Quick-Disconnect adapter, long

Each kit includes:

• 1x fuel rail
• 2x class 10.9 mounting screws
• 1x stainless steel 1/8 NPT plug.

Fits most K-Series engines except for the direct-injected K20C and K20B engines

Fitting requirements vary based on application. Please see the application list and fitting requirements below:

• 2001-2005 Civic Si and Type R
  2002-2006 Acura RSX, RSX-S, and Integra Type R
  2012-2015 Honda Civic Si
• With OEM Fuel Line and side-mounted gauge
  (1x) 1913-F02 (-8 ORB Plugs)
  (1x) 1913-F05 (1/8 NPT Adapter)
  (1x) 1913-F06 (5/16" Short Quick-Disconnect Adapter)
• With OEM Fuel Line and top-mounted gauge or no-gauge
  (2x) 1913-F02 (-8 ORB Plugs)
  (1x) 1913-F06 (5/16" Short Quick-Disconnect Adapter)
• With -6AN center-feed or side-feed fuel lines and side-mounted gauge
  (1x) 1913-F02 (-8 ORB Plugs)
  (1x) 1913-F03 (-6AN Adapter)
  (1x) 1913-F05 (1/8 NPT Adapter)
• With -6AN center-feed or side-feed fuel lines and top-mounted gauge or no-gauge
  (2x) 1913-F02 (-8 ORB Plugs)
  (1x) 1913-F03 (-6AN Adapter)
  
• With -6AN return-style fuel lines
  (1x) 1913-F02 (-8 ORB Plugs)
  (2x) 1913-F03 (-6AN Adapter)
• With -8AN return-style fuel lines
  (1x) 1913-F02 (-8 ORB Plugs)
  (2x) 1913-F04 (-8AN Adapter)
• 2006-2011 Honda Civic Si and Type R
• With OEM Fuel Line and side-mounted gauge
  (1x) 1913-F02 (-8 ORB Plugs)
  (1x) 1913-F05 (1/8 NPT Adapter)
  (1x) 1913-F07 (5/16" Long Quick-Disconnect Adapter)
• With OEM Fuel Line and top-mounted gauge or no-gauge
  (2x) 1913-F02 (-8 ORB Plugs)
  (1x) 1913-F07 (5/16" Long Quick-Disconnect Adapter)
• With -6AN center-feed or side-feed fuel lines and side-mounted gauge
  (1x) 1913-F02 (-8 ORB Plugs)
  (1x) 1913-F03 (-6AN Adapter)
  (1x) 1913-F05 (1/8 NPT Adapter)
• With -6AN center-feed or side-feed fuel lines and top-mounted gauge or no-gauge
  (2x) 1913-F02 (-8 ORB Plugs)
  (1x) 1913-F03 (-6AN Adapter)
• With -6AN return-style fuel lines
  (1x) 1913-F02 (-8 ORB Plugs)
  (2x) 1913-F03 (-6AN Adapter)
• With -8AN return-style fuel lines
  (1x) 1913-F02 (-8 ORB Plugs)
  (2x) 1913-F04 (-8AN Adapter)
• K-Swaps
• With -6AN center-feed or side-feed fuel lines and side-mounted gauge
  (1x) 1913-F02 (-8 ORB Plugs)
  (1x) 1913-F03 (-6AN Adapter)
  (1x) 1913-F05 (1/8 NPT Adapter)
• With -6AN center-feed or side-feed fuel lines and top-mounted gauge or no-gauge
  (2x) 1913-F02 (-8 ORB Plugs)
  (1x) 1913-F03 (-6AN Adapter)
• With -6AN return-style fuel lines
  (1x) 1913-F02 (-8 ORB Plugs)
  (2x) 1913-F03 (-6AN Adapter)
• With -8AN return-style fuel lines
  (1x) 1913-F02 (-8 ORB Plugs)
  (2x) 1913-F04 (-8AN Adapter)

Please note that all shipments ship the business day (mon-fri, except on holidays) after they are received. 

Next-Day Shipping Policy:

Shipments are sent only after payment has been received. ACUITY Instruments LLC reserves the right to delay shipments temporarily if credit card fraud is suspected. ACUITY Instruments LLC ships all orders on the next business day. This means that if you purchase the "next day" shipping option, next day shipping will go out the next day, meaning a total transit time of 2-days. Similarly, 2-day shipping takes 3 days since the order is filled the next day. If you require faster shipping, we recommend you contact one of our vendors that carries inventory.

Shipping Options:

Everyone loves lots of shipping options! We offer USPS, UPS, and FedEx shipping options for domestic (within the United States) shipments and USPS, UPS, FedEX and DHL for international shipments. For your convenience, we offer shipping options with transit times as low as 2 business days. At this time, we do not offer next-day shipping options. 

Shipping Insurance and Signature Policy:

Acuity insures all packages it ships. This insurance covers damage to or loss of the product while in transit only. This does not cover theft of the package after delivery. Because of this, a signature is required for delivery of all orders over $100 (before shipping costs). If you will not be available to receive the shipment, many carriers permit the recipient to leave a note on the door instructing them to leave the package. If you choose to do this, please remember that Acuity Instruments LLC cannot insure packages that are stolen.

Free Shipping Options:

Occasionally we offer shipping specials where orders over a certain amount are free. If we are offering this, you will see the free shipping option in your cart at checkout. If no options is visible at checkout, then either there is currently no free shipping offer or you are not in a zone that qualifies for free shipping. Most states in the continental USA qualify when a shipping special is being ordered. There is no choice of carrier for free shipping, but typically we will ship your order will likely ship using either USPS or FedEx. If you'd like a faster delivery, you can opt out of the Free Shipping option in favor of a faster, paid, shipping option.

Taxes on International Shipments:

It is against Acuity's policy to falsify tax documents during the shipment of goods to locations outside of the USA. The tax documents for your shipment will reflect the price you paid for the parts. Please do not contact us requesting us to falsify tax documents so that you do not have to pay taxes on the shipment as we cannot do this.

Guaranteed Times by Carriers and Related Reimbursements:

On some shipping services, like USPS Priority Express, the service provider (USPS, UPS, DHL etc) will offer a shipping reimbursement if the order does not arrive on time. ACUITY does not assume responsibility for tracking these matters. If you suspect your service may have a delivery-time guarantee and was delivered late, please contact us with the order # and delivery info. Please note that a full refund is typically not provided by the carrier. ACUITY does not offer full reimbursement of shipping costs, but ACUITY will pass on 100% of any reimbursement for shipping costs from the carrier to the customer.

Domestic Transit Times:

For orders shipping within the continental USA, USPS First Class shipments will usually take around 5-7 business days for delivery. USPS Priority usually takes closer to 2-4 business days, and Priority Express usually takes about 2 business days. Your exact transit time will vary based on your location. 

International Transit Times:

USPS First Class International shipping is very economical, but the transit time can be very slow. Please allow up to 4 weeks for delivery of orders shipped via USPS First Class International. USPS Priority mail is typically faster, normally taking closer to 2 weeks. USPS GXG is faster still, typically taking only about 1 week. Your exact transit times will vary depending on your location, and it is possible that your exact transit time will exceed the values provided here. For best results on international shipments, however, we recommend avoiding USPS options in favor of FedEx, UPS, or DHL shipping methods.

Warranty Requests

All ACUITY products are covered by a 1-year warranty against manufacturer defect. Please keep a copy of your receipt as a proof of purchase when contacting ACUITY with a warranty request. Please do not ship back any merchandise without a Return Merchandise Authorization (RMA) number. Contact ACUITY to receive an RMA number.

Returns

Customers are responsible for all return shipping charges. Please do not ship back any merchandise without a Return Merchandise Authorization (RMA) number. Contact ACUITY to receive an RMA number.  ACUITY permits returns with no fees if the product is returned within 14 days of delivery, if it is unopened and in its original packaging. If the product has been removed from the original packaging, has not been installed in any way, and requires repackaging but is in 100% sale-able condition (to be determined by ACUITY) a restocking fee will be assessed in an amount equal to the greater of $5 or 10% of the cost of the product. ACUITY will not refund any shipping and handling fees related to a returned purchase. Valid proof of purchase must be provided to receive an RMA number. Any purchases made through one of ACUITY's vendor's are subject to that vendor's return policies. ACUITY cannot accept the return of an item purchased through a vendor without the consent of ACUITY and said vendor. Please Note: If 2 items were ordered and the order qualified for free shipping, but the return of 1 of the 2 items brings the new invoice amount (after your refund) below $100, the original cost of shipping will be debited from your refund, since the order would no longer be eligible for free shipping.