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6637 opens up the intake, and you hear all the noises the stock turbo makes. The "Darth Vader" exhale on up-shifts is normal, as is the steady hiss sound at very low RPM's.
The rattlesnake "chuffa-chuffa" sound is surge, and you want to avoid that.
6637 opens up the intake, and you hear all the noises the stock turbo makes. The "Darth Vader" exhale on up-shifts is normal, as is the steady hiss sound at very low RPM's.
The rattlesnake "chuffa-chuffa" sound is surge, and you want to avoid that.
It makes a steady whoosh untill I let off, then it goes away.
07-19-2009, 05:51 PM
