Gt2876
You want more power and you're space limited with the LPE system so you have to get the most out of a baby turbo.
Turbo rebuilders can take a GT2871R and remove the chra (compressor wheel, turbine wheel, etc ) and add a larger chra that will flow more air.
The -11 or -12 CHRA is a Garrett CHRA that will fit in a modified GT2871R. Mike Blouch has used both the -11 and the -12 and will know which one is the best. Jose at FI may have done this also so it's worth a phone call to him also. Jose knows turbos. Either one will boost the airflow up to 50-52lb/mn. So your engine hp could increase to 52 x 10 = 520hp x 2 = 1040total....nothing's perfect maxed out so you should see a gain of roughly 100 engine hp. But you must keep the stock engine size or the backpressure will skyrocket....it's bad enough on stock cubes.
If that's not enough power for you, then you need a different turbo system. T25 turbines are tiny....like trying to cram 10lbs of crap in a 5lb can.


