I just changed out my Magnaflow 6" 5x8's for a pair of Kooks that are 10" long but 4x8. The race Magnaflows were too loud. I was measured at 106 db. The Kooks sound good and are much quieter. Summit Racing carries them. I'm using 2 1/2" single in/out. My setup is custom so it's all tucked up nice. These fit really well.
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