i bought a carsound cat recently, model 94105. i am about to install it and i was wondering if there was a certain direction that the air needs to flow through the cat. is there like a head and toe for the cat, or are both ends the same?

also i didnt kno which side should face the ground, the side with or without the heatshield, thank you very much.

new b16a sir II longblock just put in my motor this past saturday , whoohoooooooo

 

I dont think it would matter which way you decide to install the converter, as for your question about which side to have it facing, I would face the heatshield towards the undercarriage of your car