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DangerZL1 · 07-10-2013, 08:25 AM

Hennessy does a great job on the ZL1 from reading all the reviews in this forum, but there are also a number of less expensive and well-regarded tuners in TX if you want to shop around.

07-10-2013, 08:25 AM	#3
DangerZL1 Drives: 2023 Black ZL1 Auto Join Date: Oct 2009 Location: FEMA Region 4 Posts: 2,935	Hennessy does a great job on the ZL1 from reading all the reviews in this forum, but there are also a number of less expensive and well-regarded tuners in TX if you want to shop around.