The problem with replacing just one mount if you put alot of stress on the other stock one. People have broken them doing this. Replace both with the milder option. It will vibrate especially with the AC on but it's gone once you start driving.
Finally got the mounts installed over the past couple of weeks.
Started with just the upper mount right when the pair arrived since it’s an easy install. Immediate improvement, big jump particularly in sound, decent in engine feel. Drove for a week and loosened / re-torqued, and the sound really mellowed out along with engine feel.
Had the car jacked up late this week for the lower mount and turbosmart resonator delete. It did exactly like you said—more vibration at idle, especially with the AC running, which is perfect for stop and go clutch starts with 6MT.
Yes, there’s more vibration that would feel abnormal to most Accord drivers, but my recent passengers didn’t seem to notice. Turning the AC off does stop the heavier vibration while still giving a step change in engine feedback. Very happy with it.
Still leaves me wanting more torque and throttle response—sometimes when blipping the throttle from low rpm nothing happens, like on a heal toe downshift. Learning a lot driving this car vs. a V8.
