Quote:
Originally Posted by Pekka Perkeles
I would guess the (higher WOT) spark advance is the main reason why cats last forever in ZL1 or in ZR1.
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No, it's the material they are made of. Not as high flowing as high flow cats but survive the higher temps.
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2011 SS IOM Vert. ECS Vortech 13+ psi, Water/Meth, ID850’s, ZL1 pump with MSD Voltage Booster, 2800 stall, LT headers, Drag radials, Drag alignment, Cradle Bushings. A million other supporting mods. Tuned by Ted.
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