Quote:
Originally Posted by Spartan268
So from what I found back when I made the thread and the shop I went to, who took it from their ZL1 shop car. Airflow is negligible, asides from the headers, this car has very good airflow from the cats to the back. You can be FBO and you're not leaving much power on the table with a stock catback if any at all. Some top quarter times are with a stock catback. If you're talking about the cats, I wouldn't waste your time on the ZL1 cats and just go straight to some High Flo's or catless pipes.
But yes the shop made a similar remark about the cats being slightly off. Thankfully the exhaust I got marrys up to the secondaries instead so no fitment issues there. Come time for headers (Which I might regret with the Ataks) it should be a good fit.
Did you have some specific plans in mind or just wondering?
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Thanks I was just wondering, I know the OEMs don't like having multiple part numbers, I'm wondering why they needed 2 different ones.