3" high flow or mod stock cat to 3"?

[suprafredde]

Right now my stock cat is a bottleneck since the rest of the system is 3".

Found a direct replacement 3" high flow cat. The easy way.

Or modify the stocker to 3", easy, since I have a 250A Esab welder =)

Flanges and gaskets can be bought at Driftmotion.

Has anyone done a flowtest to see if there is a big difference?

For flow and HP, whats best? (no cat is not an option)

suprafredde

 

[hvyman]

The name "high flow" might mean something.

 

[Poodles]

Stock cat is more than likely worn out/clogged by now anyway...