You can't VOID your warranty. The only thing they could
Argue would not be covered is the differential and possibly axles. Because they're directly related to the gears being changed. But no. If you buy a GM upgrade kit. From GM
And have GM install it. No issues.
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LSX376 SLP TVS2300 '13 1LE
Full front half protected by Xpel PPF
Instagram:@Failshift
625hp/582tq
1LE Owners Group:
https://www.facebook.com/groups/559684050767758/