I'd go lighting and yes. You should post on somthing SW has out like the chance to win your exhaust. + why would you ask them how to put on someones elses muffler?
Oh Wilson...
I wasnt asking how to put on someone elses muffler, but thanks for the quick laugh.
And thanks to SW for answering my question.
And yes i do personally think from experience i must add that a 1 7/8'' primary with 3'' collector is ideal for power and torque gains through out on these trucks.
I had 2'' longtubes on my 7.0L c6Z and used to get flack since almost everyone ran the smaller primarys. End result was more top end horse and 15ft/lb more torque as well....