Is it possible at all to take a 4g63t from a gst and put it in a 99 gs?
nopewell, yes.but you don't want to.so nope.
Red 97 Eclipse GS (420a) MTX Custom Garrett T3 Turbo system Megasquirt w/52 lb/hr injectors & a Walbro 255Kicker/Alpine Audio (3 amps, 2 subs) 90 Cav 2.2 TBI auto (winter) <- yeah, it's fast
Evo 8 - 12.3@113 circa 2009 (~330whp)Now with BB Xona Rotor HTZ FP Red and ~450whp2018 MSM Civic SI Ktuner TSP stage 1 w/ Honda hacked headunit.
Use the SEARCH function. This topic has been beat to death on this site. You can do it, but it cost more than its worth. Build your 420a or buy a GST.
1995 Eagle Talon ESiPowered by NX wet kit