To anyone who has put or had check valves on there turbo cars please let me know on what they do and how to install them.....i called bap geon and my boy ron told me not to go with the 2JZ turbo map sensor, my map sensor clips out at 13psi on the starlet....so some one please let me know something on this

 

They bleed off boost, I would not recomend using the for your setup due to that it will put your ecu in the wrong load table. I would recomed getting a piggy back that will clamp map voltage to prevent boost cut and still be able to tune it.

 

bump