audi s5 r8
1-1 of 2 Results
  1. Audi
    Special features: *No droning *noticeably hp & torque gain in mid-high rpm *When valves are opened, much aggressive exhaust sound compare to stock *When valves are closed, sound quieter than stock *Advance vacuum actuated valvetronic technology (On, Off, TPS/RPM Auto) *Quality-wise? Top of the...
1-1 of 2 Results