SKU: 87612053384

PORT INJECTION KIT, HONDA K20C1

Sale price$118.77 Regular price$131.97
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  • USA
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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Description

PORT INJECTION KIT, HONDA K20C1The Radium Engineering Port Injection Kit (PIK) installs between the intake manifold and the cylinder head. It permits the use of port injectors to add additional fuel on high horsepower K20C1 engines, commonly found in the FK8 Civic Type R. This does NOT replace the OEM direct injection system. The kit includes the PIK adapter plate, custom fuel rail, fuel rail mounting hardware, and OEM Honda gaskets, as shown in the below picture. It is compatible

The Radium Engineering Port Injection Kit (PIK) installs between the intake manifold and the cylinder head. It permits the use of port injectors to add additional fuel on high-horsepower K20C1 engines, commonly found in the FK8 Civic Type-R. This does NOT replace the OEM direct injection system. The kit includes the PIK adapter plate, custom fuel rail, fuel rail mounting hardware, and OEM Honda gaskets, as shown in the below picture. It is compatible with all fuel types including popular alcohol mixtures such as E85.

The fuel rail features a large 0.63" internal diameter bore. It is CNC machined from extruded 6063 aluminum and laser etched for a high quality surface finish. All 4 ports are machined with 8AN ORB (3/4-16 female) threads. Note that the 2 top fuel rail ports will need to be plugged with 14-0150 unless the plastic OEM wiring harness carrier is modified (see below). For a list of all 8AN ORB adapter fittings.

Machined phenolic mounting spacers and washers are included to completely isolate the fuel rail from heat created by the cylinder head and transferred through the mounting bolts. The injectors are at a specific angle to ensure proper spray into the intake ports.

This kit is designed for specific top feed fuel injectors with upper and lower O-ring spacing, as depicted below. The upper and lower injector O-rings must be 14mm diameter. The included fuel rail mounting brackets permit 2 different height fuel injectors to be used.

FUEL INJECTORS ARE NOT SOLD BY RADIUM ENGINEERING AND MUST BE SOURCED ELSEWHERE. Consult the fitment guide below before purchasing injectors.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 87612053384

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4.7 ★★★★★
Based on 9 reviews
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Verified Purchase
JC
Boise, US
★★★★★ 4
Reasonably priced sound deadening
Size: 18 sqft
Easy to cut with a carpet knife. I used a heatgun to make it stickier and more moldable. The foil isn't so thick that you risk cutting yourself like some Dynamat variants.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 12, 2026
D
Verified Purchase
David
Birmingham, US
★★★★★ 5
Works for me
Size: 36 sqft
Sticky so don’t let it touch you or each other but it comes off and works fine.
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Reviewed in the United States on June 7, 2026
A
Verified Purchase
Amazon Customer
Louisville, US
★★★★★ 5
Xxxxxx
Size: 36 sqft
Great
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Reviewed in the United States on June 11, 2026
E
Verified Purchase
eff me
Phoenix, US
★★★★★ 3
great for what im doing. maybe not as good in a vehicle though
Size: 36 sqft
decent product. not as thick as typical sound deadening but definitely cheaper. and for my application, i didnt need a name brand thicker material. i am putting it on our heat and ac vent and intake pipes during our remodel. sound travels from room to room in our old house through these vents and pipes so a little sound deadening goes a long way
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Reviewed in the United States on June 2, 2026
M
Verified Purchase
Miguel
Whiting, US
★★★★★ 5
Quality
Size: 36 sqft
Good item
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Reviewed in the United States on May 30, 2026

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