V8 Quicksilver Cat Replacements
Discussion
Are your sport cats, primary or secondary cat replacements. I understand that later Vantages have 4 cats instead of 2. I have a N420 with 4 cats and a rear sports box which gives a deeper note than standard which I love but was hoping to benefit from the driveability/performance improvement which comes from sports cats or decat pipes without necessarily making the sound level ridiculous. I prefer the deeper burble type of noise like a Corvette. Some vids on You Tube are insanely loud.
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