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Quote:
Originally Posted by kampinguru
I have a magnaflow turbo back system on my truck and one thing that does bother me is that there seems to be a drone now when driving at hwy speed. It is constant and I have had it back to try and see if they can get rid of it but it seems to be a permanent thing with the 4 inch exhaust. The exhaust note is quiet though just have this drone inside when driving.
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You might look into putting a resonator before the muffler. From what I have read suppose to get rid of the drone sound.
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2000 7.3 powerstroke. PHP 6 position chip (stock,high idle,60tow,80dd,100hp,no start) . 6637 riffraff filter kit . AIH delete. Oil crossover. 6.0 tranny cooler. In tank mods. Wicked Wheel. EBPV delete. Walker 21470 muffler. Riffraff FRX
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