It will be louder, but not a whole lot. It all really depends on how gutted your stock ones are.
Also, your stock H-pipe is 2 1/4" and most off road pipes are 2 1/2" in diameter. This will greatly help the flow, and inturn make it louder
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NMRA O/C 9516
NA pumpgas stickshift 347 10.65@125.6, 6.73@100, 1.41 60ft
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