Im looking for a good street turbo. My current mods are a halfbridge, microtech, 1600 sec, 880 prim, dual walbros, and all other suporting mods. I could be wrong but I'm thinking the gt35r is too small and the gt42r is too big. I'm not familiar with the gt40r, but it is in between those so any info will help. Thanx in advance. o and the car is a FC.

Ryan-

 

there is also a 37R available

 

Garrett/A-Spec do not make a 37R. Garrett makes a GT37xx, but the compressor puts out considerably less CFM than a 35R. AMS makes a supposed "37R", that is really just a re-badged PT-67 BB P-trim