Thread: Zl1 headers
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Old 09-09-2020, 12:00 PM   #62
laynlo15
 
Drives: 2022 Lt1 A10
Join Date: Nov 2015
Location: clark, mo
Posts: 8,882
I did the 1 7/8 BBK and made plenty of power (somewhere near 875 rwhp) on my Camaro. You still have to push the exhaust thru a 3" collector so I think unless you want to make 900 rwhp and up the 2" is not needed. I'm using Speed Engineering 1 7/8s on my 16 Vette. Smaller the primary the more torque you produce, larger is less. Your restriction is behind the collector. Bigger is not always better
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