A tired old question..... and I'm sorry - ZR-1 Net Registry Forums

Regimof · 07-08-2017

I looked in the search function... admittedly I am not forum savy...and found not a lot in the results. Funny thing is I'm sure I've seen it here before.

Anyway. Had the yellow car on a lift the other day looking for anything out of whack and doing a diff fluid swap and I kept looking at the exhaust and the 4 cats....and I'm wondering does it need 4 of em? It seems to me that's an early 90s attempt to please the epa and not much else, especially with the lt5 wanting more flow and all. Do people eliminate just 2? Would it garner any gains? It's got a magnaflow cat back on it now if that makes a difference.

I've been talking to DRM about a few goodies next year and intake and headers seem to be The best first step when spring rules around. So either way it's not staying this way for long.

Sorry again for what I assume to be a repeat question.

07-08-2017	#1
Regimof Join Date: Jun 2016 Location: Prior lake Posts: 65	A tired old question..... and I'm sorry I looked in the search function... admittedly I am not forum savy...and found not a lot in the results. Funny thing is I'm sure I've seen it here before. Anyway. Had the yellow car on a lift the other day looking for anything out of whack and doing a diff fluid swap and I kept looking at the exhaust and the 4 cats....and I'm wondering does it need 4 of em? It seems to me that's an early 90s attempt to please the epa and not much else, especially with the lt5 wanting more flow and all. Do people eliminate just 2? Would it garner any gains? It's got a magnaflow cat back on it now if that makes a difference. I've been talking to DRM about a few goodies next year and intake and headers seem to be The best first step when spring rules around. So either way it's not staying this way for long. Sorry again for what I assume to be a repeat question.