04SloSnake
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- Nov 11, 2014
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- Japan / Germany
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- R34 Skyline
Actually people have proven the OEM calibration does allow pre-ignition. Tying a catback to a blown motor is stretching at best and is just a way to save money by denying warranty. The piston damage is directly linked to LSPI and that condition exists with stock exhaust as well as a modified exhaust.
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