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Old 09-02-2018, 10:40 AM   #4
laynlo15
 
Drives: 2022 Lt1 A10
Join Date: Nov 2015
Location: clark, mo
Posts: 8,882
This kit has a solid elbow and at high rpm and lots of boost the rubber elbow can start to collapse, the solid one won't do that. Not sure what the zl1 has.
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