i got a 3200 10 inch lockup for my car they were great fast shipping and an outstanding product. this converter ROCKS its like a whole different car 25 psi in 1.2 seconds from a dead stop with no spool up from break i get 3200 at 5 psi with the brake and 3700 at 10 psi. i would recommend them to anybody and everybody. it spool that te-60 like a stocker. should be in the 11 teens