Which twin turbo kit is a better choice for a Z? The APS TT system which gives about 427 hp or the Power Enterprise TT system which gives about 415-420 hp?

 

IMO APS is a more complete and better kit.Just make sure you have a unichip dealer near you to tune it.GRD will be your best bet for tuning.

 

There is no comparing these 2 kits when it comes to quality and or future capability, the APS kit is much better in almost every aspect, more importantly in the design and implementation of it, and this isn't a disrespect of the PE kit, it's just that until someone comes out with a better kit (and it will happen) APS is offering the best one at this time.

If you don't have any future goals above and beyond what either kit delivers to a stock motor and typical tuning, the PE is a good choice as it has a good reputation aside from being choice JDM.

Someone already mentioned to make sure you have a unichip dealer/capable tuner, regardless of what kit you go with, tuning is going to make or break the performance and reliability, so make sure you can trust who does your install/tune.

 

if you are going to go FI do a lot of reading in the FI section of this forum. I wouldn't go off those marketing numbers... a good tunner can give you the most you are comfortable running on stock internals with either kit.