Does anyone have a decent quality recording of what it sounds like without the lunchbox?
I'm assuming this is how some 09 SES manuals were sold with 143 horsepower rather than 140.
The resonator is designed for sound suppression, but it is still a restriction in the exhaust system. Removing this will increase airflow and we all know what that means..
2011 SES 5spd #006 >> SR #213
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