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  1. WARNING FOR BUYING CATTED DOWNPIPES!!!

    Engine Modifications
    We have a different but related issue: '04 WRX with aftermarket Borla header and exhaust. It has always passed CA smog before, but now the CA Air Resources Board is apparently cracking down - aftermkt equipment has to be CARB certified and smog shops have to check. Although my system fits any...
  2. WARNING FOR BUYING CATTED DOWNPIPES!!!

    Engine Modifications
    We have a different but related issue: '04 WRX with aftermarket Borla header and exhaust. It has always passed CA smog before, but now the CA Air Resources Board is apparently cracking down - aftermkt equipment has to be CARB certified and smog shops have to check. Although my system fits any...
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