i drilled mine out with a 1 1/2 half inch hole saw and wow it made a huge diff i do have a 750 in mine thow i would rather drill the stock box then run a after market. and it sounds awesome.
i drilled mine out with a 1 1/2 half inch hole saw and wow it made a huge diff i do have a 750 in mine thow i would rather drill the stock box then run a after market. and it sounds awesome.
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