Are any of you running the Cobra power port headers and muffler combination as part of a Stage 1 upgrade on a 103?

I have had good luck with Cobra mufflers on other bikes but have never used their headers.

 

I was running the Cobra true duals with the stock header pipe on my 09 SG. Decided to change out the whole system and run V&H dresser duals and CFR mufflers on my 96". I'm selling the Cobra true dual mufflers if interested.