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Cat or not catted ?
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03-09-2017, 07:05 PM
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ULTRAZLS1
Drives: 14 Silverado LTZ Z71, 16 Camaro SS
Join Date: Nov 2009
Location: Jackson, Michigan
Posts: 4,428
From the graphs ive seen with teds comparison the 1 7/8 slightly beats the 2 inch all the way to peak but does not fall off as much after around 6k or so IIRC.
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