I'm trying to figure out which exhaust system to purchase but haven't been able to decide. I see Advanced Diesel has a 4" turbo back system made by BD for $420. Any opinions on this system? Also, does anyone produce a 5" system? Curious about a 5" system because of the shock value. I live in southeast Wisconsin and was also curious if anyone in the area sells a nice system. I would prefer to do the work myself but would consider having it done by a shop that does quality work. I had a system installed on my last Dodge (360) and was very disapointed in the workmanship. Therefore, am a little nervous about going that route. Any opinions are much appreciated. Thanks in advance.
I promise next time I'll have my sig.

