Thread: LT1 boost
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Old 07-13-2023, 10:03 PM   #19
Kerry

 
Drives: 2019 2SS Camaro
Join Date: Apr 2012
Location: Al
Posts: 834
I first had the coup then got a vert. The 315 bulges slightly on the 11 rim. I run 18 psi cold all the time. They last seems like twice as long. And grip better too. The 305 with low pressure on an 11 would spin on the rim no problem with the 315
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