Quote:
Originally Posted by Megahurtz
Anyone here with the Borla S-type or Atak hearing a rattle sound when cold?
I need to get under the car and check everything but it sounds like the NPP valves may be rattling.
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Check first thats its not an exhaust leak. I had the same "rattle" sound but it wasnt the valves, the mid pipe area had a leak, and with some readjusting of the piping, the rattle vanished. Have your local exhaust shop check, it will take less than 5 minutes easily.