Quote:
Originally Posted by FRSBRZGT86FAN
The full header and headerback will supposedly be emissions legal when catted correct?
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Quote:
Originally Posted by churchx
Completely legal ones (loudness aside) are only catbacks with both stock cats left untouched. Headerback in way of changed stock frontpipe with it's cat technically isn't legal too, even if one shouldn't see any CELs on it due sensors working only with primary cat in header.
And of course same can be said about headers, catted or no.
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"Legal" is a very loose term and can vary from place to place, best to check your local regulations. As church mentioned, in stricter areas like CA, both cats need to be left stock.