Rb Rumble... i had a 1989 eterna zr4 with 4g63t. mods were turbosmart boost control, blitz dual stage turbo timer, racepro pro series 38ml wastegate, custom made hi flow extractors, an a 3inch tip on factory turbo bak 2 an a quarter inch exhaust. I now own a r32 gts with full gtst running gear an a factory manual rb20det. plans have started on a full after market mod list but as always good things take time... will have pics an vids up soon....