Its something the car does to warm the Cats up faster, I think almost every new car does it but they all make different sounds. Dont worry its normal, you should hear my moms 2010 Forester XT Sounds like the thing is running on two cylinders with no oil.
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2010 Base+Sport 6spd: Stillen G3, FI Non-Resonated CBE, FI Non-Resonated Test Pipes, UpRev Tuned, Custom 24R Oil Cooler, JDM Rear Fog-OEM Harness.
???Whp ???WTQ (Will find out come spring time)
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