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Needed Tranny Upgrades

983 views 5 replies 5 participants last post by  leonard_is300  
#1 ·
Hey I am looking to supercharge my IS with the PLP Supercharger kit after new years and I was wondering if since it only produces around 280 to the wheels, will I need to built up my tranny with a VB, tranny cooler, and sprang upgrade or would just the vb uprgrade be ok. Thanks for the help.
 
#2 ·
vb will be fine, it is said that it can hold perfectly for 350, but for me my sprag broke but i don't know how much i was pushing, but i was at 9 psi so.. mid to low 300's? but for you 280, vb is perfectly just fine with the tranny cooler