I Looked at It No to Impressed - First Off 409 SS is Not all that Great - If It's Done with Super Clean Tooling - that has No Contamination , Plus
The system is Sent out for Electro Polishing - which is a Process that in the Industry of manufacturing is like Apply Butter to Toast .. ( BUTT )
Many Cheat and Don't do this any longer as Their All Greedy A. H. ( No One Cares about Workmanship any longer ) Oh , Ya and the Other Half is all New Generation's
Don't Even Know the Difference - so they get Screwed all the Time ..
Looks like all they did was open up Dia. some and Remove 1 Small Resonator . . No Real Pictures , No Real Video , No Sound Video ?_?
Next - They did have Instructions that had a few Pictures . .
I'd Write ask to Speak to the Designed of the Exhaust system , as them about Back Pressure Reduction , and yet Keeping Sound & Resonating to Min. ( Very Basic ?'s )