i have dynatech and love them..went with them because i needed to stay as close to legal as possible..but there are many different lt out there...like pacesetter...and LLP's..all are ALOT cheaper then the dynatech's with the ory.....here is the search for longtube headers where youll find plenty of places to buy from.... silverado long tube headers - Google Search ....also search on this site for this topic...its been covered about a million times..should answer any question yu may have !!!!!!
trevor
kn cai
dynatech supermaxx LT headers/cats
flowmaster thunder series exhaust
nelson performance tune 160* t-stat
full memphis audio minus alpine 10"sub