YES< BIG BIG SmileSo burg_855t - just to clarify - you have noticed a significant increase in power after replacing the downpipe with OBX and running through the OEM cat??
I was saying a friend has had trouble passing emissions with aftermarket cats, but his original one passed just fine. Might be something to do with his tune or something to do with our requirements, maybe they're tighter here in Denver than most places. We do have bad smog.I actually have used the OEM cat in two of my past volvos with a OBX dp.
You will have to cut the OBX up to install any cat, oem or aftermarket. Thats why i ended up using the OEM cat in a few cars and lately i have settled on a magnaflow 94109 in the last 3 volvos, including my 05 VR
I never saw the need to save the oem stuff, i dont think i will ever go back to stock considering the HUGE smile i get when the power comes in. Running catless IMHO is just plain silly. Aside from it killing the ozone, it just stinks all the time and i feel its not safe to breathe all that junk in.
Lloyd, if you used the oem cat, you think you will have emissions issues? my 01 c70 HPT manual is running the magnaflow cat with no issues for the past year. I worry the v bands will hang too low. also the OEM cat is going to be 2.25 vs 2.5" on the OBX.