1. JaseYpk

    "Relief Valve"

    Was browsing and found this: Its a GReddy Relief Valve.. What do they do, is there a stock one fitted, and if so, where, and are they...
  2. P

    need advice. odd noise

    okay... last night was out cruising around. i gave it full throttle in second gear, at spike boost / full boost or 3250ish rpm it developed a loud screaching like sound. its the type of sound i would associate with a slipping belt. it is also similar to the induction note of my hks suction...