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Hondata K20A/K20Z1 Intake Manifold Gasket

Hondata K20A/K20Z1 Intake Manifold Gasket-A1
Hondata K20A/K20Z1 Intake Manifold Gasket-A2
Hondata K20A/K20Z1 Intake Manifold Gasket-A3
Hondata K20A/K20Z1 Intake Manifold Gasket-A4
Images may be for reference only

Hondata K20A/K20Z1 Intake Manifold Gasket

★★★★★ ★★★★★ 33 Reviews

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The Hondata intake manifold gasket (IMG) improves horsepower by reducing the heat transfer from your cylinder head to intake manifold. This gasket fits the Honda/Acura k-series K20 cylinder head which comes on the Acura RSX (DC5), 02-05 Honda Civic Si (EP3), and Honda CRV.

Hondata have developed a special high temperature insulating gasket which replaces the stock intake gasket. This and bypassing several heat sources significantly reduces the transfer of heat from the head to the intake and incoming air giving you up to 5% more power.

Turbocharged cars often use an aluminum intercooler to cool the air compressed by the turbo. The intake manifold is also made of aluminum but because it is heated by the head from combustion and coolant, works in reverse to an intercooler by heating the intake air by as much as 50° C.

Fact: For every 3.3 °C (5° F) rise in intake temperature, air density drops 1%. The hotter the air, the less fuel the computer injects to compensate for reduced oxygen. HondaLogger datalogging software has enabled us to measure intake air temperature under varied driving conditions.

Around town, testing has shown an average drop of around 10 degrees C which is good for around 3 percent power increase. Remember though that 3 percent power increase is difficult to feel. You'd feel a greater change in performance getting rid of that passenger. In certain conditions a 30° C drop has been measured.

The Honda manifold is heated in up to 5 places. From the head, the interior heating takeoff hose, the cold idle valve, the idle control valve and the throttle body heater. The Heatshield gasket kit contains an insulating gasket, and installation instructions. A race version only version with the thermostat bypass blocked is also available.

The graph above shows the results of installing the Heatshield gasket and bypassing the throttle body heating and idle control valve heating. If you examine a Type R intake manifold you will find that most sources of water heating are removed. Further temperature drops are possible when in addition the interior heating hose is blocked. What the graph shows, is that as you open the throttle, the intake temperature drops slowly as it cools the intake. When you descend a hill with the throttle closed or drive around town on a light throttle the temperature climbs quickly. It takes a good 15-20 seconds for the temperature to drop again when you open the throttle. So if you start your 1/4 mile drag with a hot intake manifold - you are only starting to develop maximum power near the end of the run when the intake has been cooled. The Heatshield gasket kit gives you 4-5% more power immediately by lowering the intake temperature.


Brand: Hondata
Part Number: K20A-IMG

Vehicle Fitment

Acura RSX
2002 Acura RSX Automatic 2003 Acura RSX Automatic 2004 Acura RSX Automatic 2005 Acura RSX Automatic 2006 Acura RSX Automatic
2002 Acura RSX Manual 2003 Acura RSX Manual 2004 Acura RSX Manual 2005 Acura RSX Manual 2006 Acura RSX Manual
2002 Acura RSX Type-S 2003 Acura RSX Type-S 2004 Acura RSX Type-S 2005 Acura RSX Type-S 2006 Acura RSX Type-S
Honda Civic
2002 Honda Civic Si Hatchback 2003 Honda Civic Si Hatchback 2004 Honda Civic Si Hatchback 2005 Honda Civic Si Hatchback
Honda CR-V
2002 Honda CR-V All 2003 Honda CR-V All 2004 Honda CR-V All 2005 Honda CR-V All 2006 Honda CR-V All

33 Reviews ★★★★★ ★★★★★

★★★★★ ★★★★★
4.91/5.00 Stars out of 33 Reviews
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5 Most Recent Read All 33 Reviews
8th Gen Civic Si
Kenneth Rodriguez | August 23rd, 2019
Pre modified my RBC manifold ordered the hondata K20z1 gasket best dession ive made.
Hondata intake manifold
Willie | August 15th, 2019
Does what its supposed to do
Deandre Murray | May 11th, 2017
There is no lie told when they say MULTIPLE uses, I have removed my intake manifold Multiple times and every time I bolt it up it seals no problem thanks to this gasket.
Must have
Mark C | June 13th, 2016
This product is such a great, easy and cheap mod! I was running 50*C IAT on 25*C days. The day after I installed this was the hottest day yet this summer at 32*C and my IAT didn't get over 41*C unless at idle... Plus it's a reusable gasket!
Must have
Michael DiDomizio | February 13th, 2015
Great quality piece and a must have when replacing your manifold..
Read All 33 Reviews