Thread: Should I remove the resonator AND the cat?

Originally Posted by a98gtp4u

I have a 3 inch catless downpipe with no ubend and 3 inch exhaust all the way back split 2 2.5 inch dynomax mufflers, and believe it or not it sounds really good, its not raspy and its not 2 loud. It has an aggresive roar to it. I never had 2 put an 02 sensor simulator, my check engine light never came on and its been a while now. They did put the 02 sensor a little farther back then what it was originaly tho, maybe thats it.

Weird you didn't get the p0420 "Catalyst System Efficiency Below Threshold (Bank 1)" code.

Do you have a res? Sometimes the rasp is actually reduced by aftermarket exhaust systems, the mufflers specifically.

Originally Posted by a98gtp4u

I have a 3 inch catless downpipe with no ubend and 3 inch exhaust all the way back split 2 2.5 inch dynomax mufflers, and believe it or not it sounds really good, its not raspy and its not 2 loud. It has an aggresive roar to it. I never had 2 put an 02 sensor simulator, my check engine light never came on and its been a while now. They did put the 02 sensor a little farther back then what it was originaly tho, maybe thats it.

Got a video?