MBRP Cat Back
Thread Starter
Instructor
Joined: Nov 2018
Posts: 140
Likes: 53
From: Virginia Beach
MBRP Cat Back
Recently had MBRP 3" Cat Bach system install. 2 days after install spit code P12EA and P12FF. Have to put some type of jumper to make Vette think AFM still hooked up. Do not have factory performance exhaust just AFM. With the jumpers will I need the boxes off the 2 tubes when I take to dealer to install? 2020 C8 LT3 HTC
Last edited by flittlejr; Sep 27, 2023 at 06:32 PM. Reason: Left year off
Pro
Joined: Jul 2021
Posts: 694
Likes: 617
From: Crosslake, MN
Recently had MBRP 3" Cat Bach system install. 2 days after install spit code P12EA and P12FF. Have to put some type of jumper to make Vette think AFM still hooked up. Do not have factory performance exhaust just AFM. With the jumpers will I need the boxes off the 2 tubes when I take to dealer to install? 2020 C8 LT3 HTC
Le Mans Master
Joined: Jan 2006
Posts: 9,050
Likes: 665
From: Norcal
Yep. Paragon simulators are all you need. C8 Corvette AFM & NPP Valve Simulators | Paragon Performance I had the same issue when I put on my MRBP. All I did was climb under the car, plug in simulators, ziptie to bracket, and call it a day. Took all of 10 min. I did get a CEL after the simulators. It was weird. The light would come and go for the first month or so. It was like the car was relearning. Someone mentioned it was thinking they were closed when open, etc. Eventuually went away. I have not seen light in at least 10 months.
