Vector Motorsports - 2010 SS w/ Kooks Installed

[Dan@VectorMotorsports]

Originally Posted by Bo White

This is one of the reasons why I asked about the header size:
http://ls1tech.com/forums/generation...xperience.html

Good points. Which is why we like to use the 1 3/4" on the bolt on cars, and save the 1 7/8" for the cars with cams, or head/cam, and certainly blowers where they benefit from the increased primary size!