JBA has introduced their line of headers for the V10. They are "shorty" style, which means they replace the exhaust manifolds only and use the stock Y-pipe. They claim 38hp and 73tq. Compared to the others it seems a bit high but who knows... Worth checking out. Look here: www.jbaracing.com/headers/fordv10.htm www.tirespin.com has them listed for $599.95 JBA lists them for $789. JBA also has 5.4L headers for the Superduty trucks.