Whoa. This turbo should give almost instant power then right?TurbochargedSER said:The S14 T28 and the GTiR T28 are essentially the same turbo except for the turbine housing. The S14 has the smaller .64 A/R Turbine housing where as the GTiR has teh .86 A/R turbine housing, but the S14 turbo has a ball bearing center section. The S14 T28 is good for 260 whp! There is no modification needed to run the S14 T28 that I am aware of!