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Hey guys. Complete noob here. I have an EJ9 D14A3 Civic and recently found out that this engine is almost identical to the D14A4 engine other than being restricted to 75hp by a gasket in the throttle body. My goal here is to gain access to the extra 15HP that my engine is capable of producing!

I've easily managed to locate this gasket but not sure what to do next. I've spent days online trying to find out how to get the extra 15HP out of my engine but I'm not having any luck. Do I simply remove the gasket? Or must I replace it with the gasket from a D14A4 engine? Or something else?

Any help would be greatly appreciated!

Rupert

Hey there,

you simply need to replace your metal gasket with a new gasket you can buy at your local Honda dealer. The part number of the gasket is: 16176-P2A-004

Hellraiser wrote:Hey there,

you simply need to replace your metal gasket with a new gasket you can buy at your local Honda dealer. The part number of the gasket is: 16176-P2A-004

Hi Hellraiser, thanks for the reply. That cleared everything up, thanks for the part number also!

Simply change gasket and you will gain immediately 15hp
viewtopic.php?f=15&t=724&hilit=parts+number

BETEK wrote:Simply change gasket and you will gain immediately 15hp
viewtopic.php?f=15&t=724&hilit=parts+number

Thank you so much for that list, will come in useful