What be louder.

[crfracer290 10+ year member]

Just curious.

18" Fi Q in a Jeep Cherokee with a pre fab sealed box or a 12" Fi Q in a reg cab truck with a custom ported and tuned box.

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[ultimate157 5,000+ posts]

12

 

[profundus-sanus 10+ year member]

12....

of course its power dependant... but a ported box and much smaller cabin