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WRX Exhaust Decibel Testing
WRX Exhaust Decibel Testing 01/23/19

COBB TURBO BACK VS STOCK EXHAUST ON A 2018 SUBARU WRX

Stock exhaust vs Cobb Turbo Back Exhaust with decibel readings.

With all know the uproar of California “sideshow” laws that started taking effect on January 1st of this year. We took a full COBB Tuning Turbo Back for a 2018 Subaru WRX and put it to the test.

This is what we sell as our “gentleman exhaust” for clients that want performance without unwanted attention. This car threw down 350whp right before this so no flow restrictions here!

We ran the testing as close as we could to California settings. 19.5” away, exhaust level, at a 45 degree angle, at rpms half of full rev range. The limit for failure is above 95DB. So, these are DB readings we came up with!

Soon we will test other systems under the same conditions and same testing area. This passed with flying colors!

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Competition use only parts are clearly labeled as competition use only in the product listing page and may only be used according to the guidelines posted on our Emissions Notice to Customers in California page