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TeaL97 has one of these on his car and it sounds like absolute Garbage!! if he see's this thread he'll tell you!!
and i see it. my experience?
first off it's a 17957, over 4ltr model. when the flapper is closed its much quieter than the straight thru magnaflow it replaced. when the valve opens (ie @ cam switch) it sounds very much LIKE the magnaflow. very buzzy.
and yes, it rattles. a lot. especially at start up and when ever letting off the gas. such as during shifting or coasting in gear.
i bought it like 5-6 months ago. it only has like 1500 miles on it. WHO wants to BUY IT off me, REALLY CHEAP?
![rolleyes](images/emoji/upset/eye_roll.gif)