Quote:
Originally Posted by gsxr750
Most likely the ring damage was caused by the rings never really seating properly or a excessivly lean air fuel mixture and even engine timing could do it or bad engine mapping
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Exactly what i was thinking. Ive found with most brands, its better to just modify the catback if youre going to touch the exhaust and leave it alone there after. Its the one and only mod Ive done on my Z and it will remain that way until the warranty runs out. I dont have extra cash to replace the engine nor the legal help it would take to fight a warranty denial.