So for those of you guys that have the Catback and the HFC's on their car...How much louder will the car get when both are installed? I have the CBE on right now, just wondering what i should look forward to, as in volume and performance gains. Thanks Guys. BTW the exhaust is great just wanting it to be a little louder.
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'09 370z MB w/ SprtPckg 6MT | FI CBE w/CF Cans|FI HFC's|Injen CAI|All exterior parts blacked out
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