AAM, hands-down. They use aircraft-grade stainless steel, thicker walls than the competition, hence, no rasp. And they fit right up to my Berk CBE, no issues.
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SOLD MY Z MARCH 2018 - another Core OG moves on - new ride 2019 Z Corvette Grand Sport - no mods necessary but already have eyes on HFC and intakes LOL IT NEVER ENDS.
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