[Conr4d]

Long time reader, first time poster.

In the market for a catted down pipe for my 2016 M235i. I’m looking for the greatest power output without a CEL. In terms of power output, which catted down pipe has the greatest horsepower/torque gains? Wagner or Fabspeed?

Both have great reviews on the forum and retailers. However, I’m leaning towards Wagner as it appears to be a better value for the money. Wondering if the Fabspeed w/ “HJS cat” is really worth the extra $600 in terms of power output difference, if any? Any reason to choose one down pipe over the other?

Wanted to point out that I am also going to be running the Bootmod3 Tune, Dinan Exhaust, Dinan Resonator Delete Mid Pipe, Dinan Intake, and Evolution Racewerks Charge Pipe alongside the Catted Down Pipe.