Thread: [For Sale] Fast Intentions High Flow Cats
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Old 08-23-2016, 08:50 PM   #4 (permalink)
callmebatman
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Makes sense. I've had hfc on my previous car and was curious, for your car regarding having the oem cats, test pipe and hfc. Is the testpipe considerably louder than the hfc. Im running oem cats with FI cat back and I wouldn't mind a tad bit more roar

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