I run the same ones on my car to pass the rules for my index class and yes they are very loud
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96 camaro,LT4 solidroller 383,single plane intake with 90mm accufab tb,afr 210cc heads,th400 with t brake 5200 ati stall,26 inch et drags
10.62@127(1.43 60ft) 6.68@102 1/8th (all motor)
3325lb race weight
http://videos.streetfire.net/video/S...-DJ_133669.htm