Quote:
Originally Posted by madness410
putting catalytic converters in will definitely change the sound and reduce horsepower of your camaro.
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The sound will certainly change, but adding cats will not make any noticeable change in performance (2-3 HP loss is typical, which is less than 1% on a stockish LT1 car).
I would do as BMXer says and climb under there to see what you have. If you aren't sure, snap a few pics and post 'em up, we'll do our best to help.
- Justin