les miller

i have an 87 911 taken out to 3.4 with a flowed head. Does anyone know of a high flow catalytic converter for this car. i feel the engine is being strangled.

addictionms

I am not sure that a 3.2 exaust and cat will strangle your car. I was looking at installing a 3.6 in my car and my mechanic (Porsche only shop) told me to keep my 3.2 exaust for the car since it was a better exaust.

You can always find a more free flowing exaust but they usually start with headers and end at the exhaust tips and cost big $$

Bill Verburg

The 3.2 exhaust is better for a transplant only because it will not interfere with 915 clutch actuation like the 964 exhaust will. They are both terrible from an exhaust extraction point of view.