Race Manifold Header
#1
Has anyone tried a race manifold header? If so, what results have you seen?? See the attached link for header details..
http://cgi.ebay.com/ebaymotors/ws/eBayISAP...4&category=6770
http://cgi.ebay.com/ebaymotors/ws/eBayISAP...4&category=6770
#6
The RX7 Performance book by Mike Ancas suggests that the stock exhaust manifold is the most restrictive component in the RX7 exhaust. But I do not know anyone that has used one of these after market items to open things up.