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Opening up the exhaust allows more airflow in and out of the engine, it will run leaner. Minor changers might add richness on anything but full throttle, but for the
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11-28-2013, 10:05 AM
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#12 (permalink) |
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A True Z Fanatic
 
Join Date: Oct 2011
Location: Tampa
Posts: 4,142
Drives: 13' Magma Red Nismo
Rep Power: 7336   |
Opening up the exhaust allows more airflow in and out of the engine, it will run leaner. Minor changers might add richness on anything but full throttle, but for the most part, it will always be leaner with more breather mods. Running a bit rich is safe and hence, no tune necessary. Running too lean on the other hand, can be bad and why we say "get tuned" after you do intakes, cbe and testpipe, headers, or HFC.
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