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Blackdevil77 · 09-02-2017, 08:20 AM

What is the best way to add about 100 rwhp to the ZL1/LT4? I know on the Hellcats, you can get nearly 100 rwhp from a 2.85 upper pulley and 93 octane tune. What is needed on the ZL1's to match those gains? Saw a ZL1 last night at a dealership and it was absolutely gorgeous.

09-02-2017, 08:20 AM	#1
Blackdevil77 Drives: 2008 Pontiac G8 GT, Shelby GT500 Join Date: Mar 2011 Location: Long Island, New York Posts: 1,376	Best Way To Add 100 RWHP What is the best way to add about 100 rwhp to the ZL1/LT4? I know on the Hellcats, you can get nearly 100 rwhp from a 2.85 upper pulley and 93 octane tune. What is needed on the ZL1's to match those gains? Saw a ZL1 last night at a dealership and it was absolutely gorgeous.