i know ive looked at this thread a couple of times, and i thought i'd update that list.



by very long exhaust dave does NOT mean it likes a long header. header is short (dunno how short)



what he means by long exhaust is that the pipe after the collector is really long, they actually found that making it longer helped power. its something like 20feet long on a 15foot car.



http://www.mazdatrix.com/faqpics/roadrace/ep120502f.jpg



the other mazdatrix car, bob neils 1st gen has a similar setup, and they had similar findings. more power! with the extra muffler in there, they are also quiet



discuss https://www.nopistons.com/forums/pub...#>/biggrin.gif