Has anyone installed any of the shorty headers. If so what problems did you encounter. Is it a diffucult engine modification? Can it be done with the engine in place? Are they a direct bolt in? I have been looking at the JBA headers. Any thoughts?

I too am looking into shorty headers for my '09 G8. It looks to be a fairly easy task, and best of all will not void factory warranty. Doug Thorley also makes shorties, but I like the JBA's being stainless instead of Thorley's mild steel.

I recently had some shorties installed- Kooks--- Very nice add and they fin in very easy.