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

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!

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 ...