I used the flowmaster and glass pack. Seems to work well. I have used both in the past on different cars and both can get loud the key is the glass pack. The flow has a lower tone . My car still gets kind of loud when I get on it but its not bad at highway speeds
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'99 Mystique GS ATX
K&N Glasspack & Flowmaster
UDP(still in box)
15" AR Carerra's
Alpine Sony & JL Audio Sounds
"for when 109 aint so fine" 83 Jag XJ6
