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Old 12-26-2018, 02:42 PM   #26
Markoz28

 
Drives: 18 ZL1 nightfall grey A10
Join Date: Apr 2018
Location: RGV Texas
Posts: 1,527
Straight answer to OP, if you put on headers drive train warranty is gone. Doesn’t matter who puts it on. Tune is required no matter what. Power about 20-30 RWHP. Sound will be louder for sure and if catless very loud. But awesome!!!
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