few vdos of my gli's HKS silent hiper,
the engine was still on after the reving
//youtu.be/http://www.youtube.com/watch?v=fJ8SlIpUahY
daily driving
//youtu.be/http://www.youtube.com/watch?v=H5jR0U_xP3g
yes the exaust is still in the car
//youtu.be/http://www.youtube.com/watch?v=WuF7ARqao8E