-6 AN Centerfeed Fuel Line for Various K-Series Applications

Whether you are trying to swap out your OEM fuel system for something more robust or just trying to tidy up your engine bay, this center-feed fuel line is as good as it gets. Not only is it compatible with both gasoline and e85, it also features our innovative quick-connect fitting for the firewall connection that makes installation a breeze compared to conventional nut-style fittings used on competing designs. Each hose features a reinforced rubber inner structure with a braided exterior that helps prevent cuts and abrasions to the hose. The 1/4" SAE Quick-Connect firewall side fitting features redundant seals for added protection against leaks, and the -6AN fuel rail side fitting will attach to any -6AN male fitting. For added peace of mind, we pressure test every fuel line after assembly to make sure all connections are pressure-tight. This line is compatible with virtually any K-Series fuel rail that has a center port (when used with an appropriate adapter). If you prefer a side-feed configuration on your fuel rail, this line can also be routed to the port on the side of the fuel rail closer to the gearbox. Since we are all about the fine details, each fuel line comes with a bracket that rigidly affixes the line to the backside of the gearbox to make sure the line isn't moving around during spirited driving or track events. The fuel line can even be unclipped from the bracket to make removal easy when you're servicing other parts of your car in the future. Trusted by pro-am racers and street enthusiasts alike, if you are looking for the best of the best for your car, this is the center-feed fuel line for your build.

• Preassembled Fuel line (-6AN straight connection at fuel rail, 1/4" SAE Quick-Connect connection at firewall)
• Bracket to affix fuel line to gearbox
• M6 hex screw for bracket
• 2x Zip ties (to affix fuel line to bracket) 

You will need a -6AN adapter fitting that is compatible with your rail's center port. This can vary depending on the rail. The part # for ACUiTY's -6AN to -8ORB adapter is 1913-F03.

• '02-'05 Honda Civic Si*/R*
• '02-'06 Acura RSX-S*
• '02-'06 Honda Integra Type R*
• '06-'11 Honda Civic Si*/R*
• '12-'15 Honda Civic Si*✝

* When paired with a centerfeed-compatible fuel rail and -6AN fitting

✝ Requires use of an intake manifold with a gap between the center two runners sufficient to pass fuel line through (RBC or similar)

Click here for a PDF install guide performed on an '06-'11 8th Gen Honda Civic Si

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.