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Boost or bust · 01-01-2018, 10:50 AM

2018 ZL1 with Tony Mamo ported throttle body and Rotofab CAI. These are the only mods. Which NGK plugs are best for this nearly stock set up and which would I install if I up the boost with the new Whipple 2.9 liter kit?
My confusion is: why do most people install the 6510 (LTR7IX) instead of 3689 (TR6IX)?

01-01-2018, 10:50 AM	#1
Boost or bust Drives: 2018 ZL1 M6 Join Date: Dec 2017 Location: CA Posts: 301	Which plugs do I need? 2018 ZL1 with Tony Mamo ported throttle body and Rotofab CAI. These are the only mods. Which NGK plugs are best for this nearly stock set up and which would I install if I up the boost with the new Whipple 2.9 liter kit? My confusion is: why do most people install the 6510 (LTR7IX) instead of 3689 (TR6IX)?