Ive had my obx headers on for over a week now. I bought them slightly used off a guy on here for $320 after shipping and paypal fees. I have to say for the money I am highly impressed with the fitment and quality of these things not to mention the nice up in horsepower they have given. The truck is a 2003 rcsb with a 4/6 drop and I averaged 21mpg while driving pretty aggressive to hear the extra noise I paid for. No engine codes no leaks and no bad smelling exhaust. I have to say I'm really impressed. I just wanted to get this out there for future reference to anybody looking to do a header swap.

 

Did you tune it after putting them on

 

No not yet I'm doing a cam swap this weekend then getting it tuned.