Quote:
Originally Posted by tomtom72
Jingle Bells Yun!!  
Yes, that phosphate? or Zinc or whatever it was....I remember that. Makes me think I should rethink my choices for motor oil...well that and the link Jim from FLA posted to the oil guy's site.
Tom |
Hi, Tom,
Guess what? I have been reading this thread because my plan is to lose the cat and the factory exhaust manifold and slap on a set of headers. If you remember I have Florida tag and not encumbered by annual smog inspection.
In my opinion, just because it looks like a header and sounds like a header don't mean they all perform the same.
Although my knowledge is limited a successful header design should result in exhaust pulse stacking (at least equal length for all runners from the exhaust port to the collector), runner diameter (not too restrictive and yet not so large to stagnate the flow) and tunning effect (not quite figured out).
Bottom line, whether OBX is a knock off or not how good a knock off is it? The version they copied - how well was it designed?
Well, I gave up and sent an e-mail to Marc asking based on dyno numbers what is the best rwh he has seen between Jeal, Watson and SSW. Hopefully Marc can shed some light on the subject and I can make an intelligent decision.
Either way, exhaust headers and no cats!!!