I need to get my truck tested and I guess Exhaust Readers is the only place to do it here in the Springs. I recently moved here from California and it's my first test. How friendly are the test facilities with power upgrades? It's a 12V so I can roll the star wheel back to cut the black cloud but right now my check engine light is on from the EGR system being "inoperable". I can fix that before the test but I also have a gov spring kit which will let it go over 3k rpm and I don't want them floating valves on their dyno. Thanks for any input.