06-05-2014, 01:29 PM
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#23 (permalink)
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Base Member
Join Date: Feb 2014
Location: Austin, TX
Age: 41
Posts: 45
Drives: 2013 370Z MBM M6
Rep Power: 14
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This is false. An exhaust doesn't blow an engine. They would lose in court. They may give you **** about it, but if you stick to your guns I would say its not a problem generally. I know a lot of people with STis (my previous car) that have had an engine blow with an exhaust and it was covered.
Quote:
Originally Posted by grandpawmoses
Long version (and maybe a little overly stated):
When you modify an exhaust or intake to be less restrictive, you cause the engine to run leaner (and hotter). The wide band O2 sensors will adjust the ECU to accommodate for this a little but a retune really is needed or you could ruin an engine. The dealer and factory rep is going to look for a reason to deny any "big ticket" warranty repairs.
Not speaking of Nissan but my personal experience with Harley-Davidson: If a bike comes in for an oil change or whatever and the mechanic notices a non Harley modification, the dealer can "flag" the bikes VIN and it can be denied specific warranty repairs in the future. Now the Magnuson-Moss warranty act does protect you because it requires the modification to be directly associated with the problem.
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