Quote:
Originally Posted by desean81
Understood - hence the word catalytic 
I would imagine the mid-pipes get hot eventually? That's why I'm wondering if a pre-heater of sorts would help get them working well quickly?
How do non-turbo cars have their cats setup? I'd think they'd end up further from the motor in an NA configuration? |
The cats in the midpipe don't heat up enough to work properly, that's why the N55 doesn't even have cats in the midpipe.
On a NA car the first set of cats are typically mounted in the exhaust manifold just after the collecter.