PhRoSTY

I appreciate the feedback man, thank you. This is my personal street vehicle with a K24A1 running a fairly aggressive all-motor setup with 13:1 pistons, Flat Valves, Drag Cartel 3.2 cams (using a stock TB lol) in an 8th Gen Civic Si Chassis... and it's just noisy as all hell. It looks like however I was thinking similarly as yourself, as those are basically the solutions I am attempting. I have ordered ATI Damper and poly/thermal gaskets for Intake Manifold and Throttle to attempt to isolate the throttle also. The USDM Civic Si does come with a brace from the manifold to the block from factory, but just a solid chunk of metal and I have axed that a while ago. I am on my third OEM throttle at this point, and I hope success finds me soon. Thanks again!

Hello, could you tell me if you were able to solve your issue? I am also having this exact problem on two different engines K20 and K24, Factory ECU however, and both are CSS and I fear this is somehow related. I have just ordered the ATI damper before seeing this thread but curious if you had any success? I appreciate your time!