I have the 18" CF set-up on oem cats. And it sound great and good enough for me. I also purchased FI RHFCs but I decided not to install them and will be putting them up for sale shortly. And the sound is DEEP you shouldn't have any problems.
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15' Dodge Charger R/T Pitch Black
14' Base Mag Black ~Fast Intentions TDX 18" RES CF * Stillen GEN 3 * RJM Performance * Kenwood * JBL~SOLD
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