After installing my plenum spacer and my Invidia N1 exhaust my ride sounds a lot better, but it now vibrates the gas pedal. Nothing violent just a minor nuisance. Any ideas?

 

Not sure if this relates exactly as I have an actual plenum and not just the spacer, but when I did the plenum I had to do a throttle body relearn and all of those procedures as well as I had to install spacers for the strut bar as when I turned or used gas the plenum would slightly touch the strut bar and caused slight vibration throughout the car.

 

Thanks for the reply. Over the last week the vibration has gone away. I believe it was just the plenum touching the strut bar.

 

mine rubbed the strut bar after install. i increased the tension on the strut bar and that seemed to raise it just a bit. noise is gone.