I just purchased a diablosport predator and changed the shift firmness. I was a little disapointed at the firmness but I'm not sure how firm it should be. I really wanted a stiff shift and now I'm thinking about putting a transgo shift kit in to work in conjunction with the diablo. Does anyone have any past experience with the diablo or the transgo ? or both at same time?

 

Changing the firmness of the shifts with the diablosport predator is about as far as you should go. No it doesnt make the car shift super agressively. The trans go wont make the car shift agressively either, just firmer. The trans go kit can seriously shorten the life of you trans to. The 4L60E isnt exactly the strongest tranny out there, most people have enough trouble with the thing getting tourtured throwout its life. The trans go will increase performance, but will kill the trans faster over time.

 

I used the HPP3. I put the firmness to 100%. I really like it. It does get a little rough around town, under normal condtions. But when i really get on it, it responds very well.