[donnivanntripp]

As I dive into changing my BM550i exhaust setup with an X-pipe, I'm looking for insights on achieving that sweet spot between a robust sound and optimal performance—especially when it comes to back pressure on the N63TU3. Should I lean towards a 3-inch or 2.5-inch ?

Also, contemplating a JB4 or Race Chip down the road. Any experiences combining these with an X-pipe setup? How does it all work? Also possibly going to go Secondary Catless.

Wondering for your ideas/thoughts.