ZR-1 Net Registry Forums - View Single Post - LT-5 performance upgrades?

secondchance · 06-29-2017

They are all reputable LT5 tuners. I have been dealing with Marc for 7-8 years and know of one ZR-1 done by Marc - 350/510hp package. Marc is an outstanding gentleman and his 510 hp package makes great car even more so.

06-29-2017	#9
secondchance Join Date: Aug 2006 Location: McLean, VA Posts: 3,730	Re: LT-5 performance upgrades? They are all reputable LT5 tuners. I have been dealing with Marc for 7-8 years and know of one ZR-1 done by Marc - 350/510hp package. Marc is an outstanding gentleman and his 510 hp package makes great car even more so.