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Old 09-05-2013, 06:20 AM   #1

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Drives: 2018 MBM ZL1 Auto
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High flow cats?

I've been looking for info on high flow cats for the ZL1 but I don't see any posts on the subject. I'm considering upgrading to a ZL1 and am looking for mod options. Would just changing the catalytic converters to high flow improve power and fuel economy on the ZL1 as it does for the SS?
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Old 09-05-2013, 09:34 AM   #2
white ZL1

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I'd also add the question of whether or not any aftermarket converters are going to have the durability of the stock converters?
I'm sure someone has tried some cat delete pipes...I wonder what difference those would make? If none, then aftermarket "high flow" cats won't help either.
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Old 09-05-2013, 09:46 AM   #3
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The Solo HF cats can be installed on the ZL1.
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Old 09-06-2013, 10:36 PM   #4
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Drives: 1. 2010 2SS (sold) 2. 2013 ZL1 M6
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I have the Kooks 1 7/8 headers with their high-flow cats and love them...
710 RWHP; 667 torque

Ported Supercharger, Snout and TB
Rotofab CAI
Kooks 1 7/8” Headers w/ high flow Cats
LPE GT9 Cam,
BTR Springs and Comp Pushrods
160 degree thermostat
2.55" Upper/9.1" Lower SC pulley w/ balancer
LPE solid isolator, ID850 Injectors
LPE heat exchanger w/ fans
Centerforce Dual Friction Clutch
Custom Tune
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