Cats on a long-tube header installation is kinda pointless...</P>


If you want long-tube headers, you should be aware they are not smog legal. So, if you live in a smog-free area, you should just not have cats because they are a restriction you can live without. If you have to smog your car, long-tubes won't be a good choice unless you plan on removing them every 2 years to have your car smogged and reinstalling them after the smog. If you have to smog, you are required to have cats as well...</P>

 

cool, more questions</P>


1)what kind of noise difference would there be between full length and equal length headers? would there be a big performance difference? how far up would it move the power curve? cuz i know that the power would go up the rpm range but doint know how big of an "UP" it would be.\</P>


edit: MORE</P>


1)i just heard all the clips of the mustang exhausts and got really confused. but i just have one question from that. ive heard saleen mustangs on the road before and likes that the exhaust was almost unnoticeble at idle but really woke up as the revs climbed. i would like an exhaust like that! what should i keep in mind, what components do those cars use? and please answer the ?'s above thanx!</P><edited><editID>jorge</editID><editDate>37925.5789236111</editDate></edited>