• Sound Measurement Data:
• Stock DP & Cat with Cobb cat-back - idle - 80db SAE J1169 - 88db
• Cobb DP, Stock Cat, Cobb cat-back - idle - 79db SAE - 93db
• Cobb DP, Cobb catless test pipe, Cobb cat-back - idle - 83db SAE - 98db
• Cobb DP, Cobb high flow cat pipe, Cobb cat-back - idle 80db SAE 94db

The COBB test pipe is a replacement for the factory catalytic converter. Our test pipe will work with the OEM exhaust as well as any exhaust that would keep the factory catalytic converter.

Made of 304 stainless steel with a 3" diameter, the test pipe is available with a high flow cat or catless.

Below are some sound measurements we took within the SAE guidelines.

Stock Exhaust

idle - 74dB

SAE - 81dB

Stock DP & Cat with COBB Cat Back

idle - 80dB

SAE  - 88dB

COBB DP, Stock Cat, COBB Cat Back

idle - 79dB

SAE  - 93dB

COBB DP, COBB Catless Test Pipe, COBB Cat Back

idle - 83dB

SAE - 98dB

COBB DP, COBB high flow Catted Test Pipe, COBB Cat back

idle 80dB

SAE 94dB

Featured Product

COBB Tuning ,Test Pipe The COBB test pipe is a replacement for the factory catalytic converter. Our test pipe will work with the OEM exhaust as well as any exhaust that would keep the factory catalytic converter. Made of 304 stainless steel with a 3" diameter, the test pipe is available with a high flow cat or catless. From: $125.00