I keep getting a check engine light after install.

[skmazo]

Hi,
I have a 2009 Dodge Challenger R/T 5.7, I April of 2010, I purchased a Kooks complete header and catted connection pipe exhaust system along with the Corsa cat back exhaust system and the Diablo Predator Sport U7135,
From and had it professionally installed at Street Legal Customs, My question to you is, I keep getting a check engine light in the dash after 2 days of installing the program. I checked the error code with the Diablo and it reads P0430 catalyst system efficiency below threshold ( bank 1 ) & ( bank 2 ).
Can the Diablo sport reconfigure this and clear the error code?
If i clear the error code from the Diablo the check engine light returns the next day!.
Can you please help me out with this.
Thank You,
Steve

[Mike_Levy]

Its because of the headers. Headers always throw a light on the Hemis.

[mikel]

You'll need a custom tune to disable those codes.