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Hi!

So, a few weeks ago, i excitedly towed my car to the tuner after finishing fitting the parts i had slowly amassed for my 34 GTT. While on the dyno Trent hit a bit of a road block. My cannon exhaust appeared to have the silencer welded into it, and was severly restricting flow and thus power. No dramas i thought, had a straight pipe at home, so the next day i went about fitting it. While it sounded great, i didnt like the look of just one 3" pipe, so i ordered some blast pipes. Once they arrived i went to the local exhaust shop and got them fitted. As i pulled out of the exhaust shop i gave it a kick in the guts and when in high revs it has a strange whine, almost like a bloody vacuum cleaner. Its extremely strange. I bolted the old exhaust on, and it went away. I have no idea what is causing it. Anyone run into this problem before? any advice is appreciated.

Thanks :)

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