1Gunner

2020 C43 w/ JB4 + BCM.
94 octane.

ShazV6

good time,what map was this on?

MaverickC43

what does it run stock?

1Gunner

No idea.
Map 3

MaverickC43

Map 2 Logos intake

‘20 C43 jb4 bcm prob 5 gal e85 mixed with 93

Jlbusiness97

I have a JB4 been using it for a while. I'm going to take my car to the Dealer in a couple days, will jb4 be a problem for warranty claims or should be fine?

MaverickC43

People have said that the dealer would need to prove the mod caused the issue in order for them to not cover it. But I will always remove mine before I bring to dealer.
not sure bout others??

C43Mike

Some dealers are more mod friendly than others, my local dealership seems to not care, however they did state they don't see to many of these running around not stock 🤷‍♂️

yamevoy

Does anyone know if it's safe to install downpipes and intake on my stock c43 with a JB4? Do the maps on JB4 allow and make up for the increase in airflow? Or will it be better to get a custom tune?

MaverickC43

Intake is no problem at all!!!
doing an intake and keeping it stock basically is pointless.
theres been discussion about down pipes, but I wasn’t going to get them so I didn’t pay attention.
ask BMS they’ll tell you and help u dial in what’s best if downpipes are compatible.