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Old 01-16-2010, 10:39 AM   #2
2SSRS@Gen5diy
 
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Drives: 2014 Z/28 #82+#192, 18ZLE 66Nova
Join Date: Oct 2008
Location: By the lake in AZ
Posts: 15,728
I don't know the wall thickness of ARH but the set from them is that way real quiet in the engine compartment and not to loud in the rear till you go WOT, Buy the way the set i got also had the Ceramic Coatings added to the all the parts.
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