CAMARO6 - View Single Post - ZZP downpipe- 400 cell or offroad?

dekes1 · 06-06-2018, 10:58 AM

I tried both ZZP pieces and the ECM calculated HP difference between the 400cell and straight pipe was 4 HP.
To me, the fact that you have to disable the rear O2 sensor in the tune, are risking a serious fine in most states, and the less obnoxious sound like DarkFangz mentioned, all outweigh the possible 4 HP gain

EDIT: one other note, when i ran the catless version for a few weeks, the exhaust smell was almost too much to handle. It smelled like heaven when i ran some CAM2 103 octane race fuel, but the rest of the time it gave me a headache and was not fun with passengers. However, that was on an ATS so maybe the Camaro airflow draft is different.

06-06-2018, 10:58 AM	#9
dekes1 Drives: Camaro like Join Date: Jun 2017 Location: Ohio Posts: 96	I tried both ZZP pieces and the ECM calculated HP difference between the 400cell and straight pipe was 4 HP. To me, the fact that you have to disable the rear O2 sensor in the tune, are risking a serious fine in most states, and the less obnoxious sound like DarkFangz mentioned, all outweigh the possible 4 HP gain EDIT: one other note, when i ran the catless version for a few weeks, the exhaust smell was almost too much to handle. It smelled like heaven when i ran some CAM2 103 octane race fuel, but the rest of the time it gave me a headache and was not fun with passengers. However, that was on an ATS so maybe the Camaro airflow draft is different. Last edited by dekes1; 06-06-2018 at 03:31 PM.