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cats / performance???
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<table border="0" cellpadding="1" cellspacing="1" width="99%" align="center"> <tr bgcolor="#000000"><td> <table border="0" width="100%" cellpadding="3" cellspacing="0"> <tr bgcolor="#000099"> <td colspan="2" align="left"> <font size="2" color="#ffffff" face="Verdana, Arial"> <b>T O P I C R E V I E W</b> </font></td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>ADMS5OH</b> <br /><small>Member # 1060</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2003,0,6,18,13,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> what effect do catalytic converters have on performance? I have read that removing cats on a near-stock engine will result in a loss of torque but what about a mildly modified engine with longtubes? <br /><br />Is smog the only deciding factor? <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>Quick 88LX</b> <br /><small>Member # 1950</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2003,0,6,18,15,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> No matter what a cat will restrict exhaust flow. If you can swap shorty h-pipes every 2 years, which is NOT hard, then you will be fine. <br /> </font> </td></tr> <tr bgcolor="#dedfdf"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>shade-tree</b> <br /><small>Member # 298</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2003,0,6,21,16,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> I think on a stock motor cats are stealing about 5 HP (assuming they are in good condition).<br /><br />Plugged cats can be quite the performance detriment!<br /><br />as far as torque goes, I think that's a bunch of crap. I don't see torque gains from having corks in your exhaust. <br /> </font> </td></tr> <tr bgcolor="#f7f7f7"> <td valign="top" width="18%"> <font size="2" face="Verdana, Arial"> <b>st5150</b> <br /><small>Member # 51</small> </font></td> <td width="82%"> <font size="1" face="Verdana, Arial"> <img src="https://californiafords.com/ubb/posticon.gif" border="0" alt=" - " /> posted <script language="JavaScript1.3" type="text/javascript"> document.writeln(timestamp(new Date(2003,0,6,21,56,0), dfrm, tfrm, 0, 0, 0, 0)); </script><hr /> </font> <font size="2" face="Verdana, Arial"> </font><blockquote><font size="1" face="Verdana, Arial">quote:</font><hr /><font size="2" face="Verdana, Arial">Originally posted by Quick 88LX:<br /><strong> If you can swap shorty h-pipes every 2 years, which is NOT hard, then you will be fine.</strong></font><hr /></blockquote><font size="2" face="Verdana, Arial">Swapping H pipes every 2 years isn't so bad, but swapping long tubes off and on in a 72 hour period was kinda a pain in the ass <img border="0" title="" alt="[Smile]" src="smile.gif" /> Two years from now, I'm going to try and sneak the long tubes through the system. <br /> </font> </td></tr> </table></td></tr></table> <br /> <br />
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