Just Released!
JB4 Piggyback tuning for the I4 AMG and V6 Toyota powered Emira.
Plug and Play type setup.
Wirelessly connected and controlled from your smart phone with the wireless control kit or a wired connection is also available.
Up to 95whp increase on the V6 powered cars!
Up to 69whp increase on the I4 Powered cars!
Click the link below for more details and to order yours!
JB4 Tuning From GRP
AMG I4 Dyno
V6 Dyno
JB4 Piggyback tuning for the I4 AMG and V6 Toyota powered Emira.
Plug and Play type setup.
Wirelessly connected and controlled from your smart phone with the wireless control kit or a wired connection is also available.
Up to 95whp increase on the V6 powered cars!
Up to 69whp increase on the I4 Powered cars!
Click the link below for more details and to order yours!
JB4 Tuning From GRP
AMG I4 Dyno
V6 Dyno