Originally Posted by KwlAznKid
so you did a straight pipe from ur cats to ur muffler? do you know if the car will still pass smog if you delete secondary cats?
Yes the car will pass smog with Secondary Cats Deleted. I had this done before I got headers. As long as the Primary cats are there you will pass smog.
New - 2013 - 320i - 15% Tint - Future Mods ( BMS Tune, Suspension, Wheels, Exhaust)
Sold - 2007 328i (3-Stage Manifold - BMW Perf Intake w/Scoops - Powerbox - Magnaflow Exhaust - MMW Headers - KW Street Comfort - VMR 701s 19' w/M3 offset - BMW Strut Brace - 330I Brake Conversation - 5% Tint All Around - 8K HID Fog Lights -Angel Eyes)