So spring has finally shown up here in Kansas and it's time to decide on an exhaust upgrade for my 3500 and wow is there a bunch of them on the market now. I won't go into the Stainless Steal (SS) or Aluminized choice since I covered SS here
T-409 and T-304 Exhaust FAQ but I am now wondering about the decision between the 4" or 5" piping. Does anyone have any experience or knowledge about this? My concern with the 5" is clearance problems when I load her down in the back and since I live on a dirt road out in the boonies there's a lot of suspension movement.
At first I was going to just go with the stock look and get the MBRP DPF system but the SS is only the 4" pipe with the 5" being Aluminized.
Then I saw this.
This is the Banks dual and I checked and it safely clears the spare tire, shocks and brake lines but it only comes in the 4" version. They advertise that even being a 4" pipe there's still a 150% improvement in airflow and slashes backpressure up to 98% and the dual tailpipes have 52% more flow area than a single 4" tailpipe. Man I sure like that look.
Any insight would be appreciated