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Old 11-10-2012, 07:12 PM   #5
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What I Drive: 01' Yellow ZX3 euro, 04' ZX5 SVT

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Sounds like you have a clogged or damaged cat to me. When mine broke into pieces and clogged the pipe the exhaust note was much much quieter and I eventually had to damn near floor it just to keep up with traffic. That was when I decided to put my header on and sure enough when I took the cat off it was broken. You could even see where it was glowing red hot at one point, it discolored the metal so bad. Felt like I gain 40hp when I hollowed it out lol
I started out with nothing and I still have most of it left

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