Gto Aps Twin Turbo Kit, 5" downpipes with 2"~ seperate pipe for wastegates Dual Tial 38 mm wastegates with brand new diaphrams this summer. 86AR. At 8 PSI, this system made OVER 700WHP on a stock LS2! UPP's variety of turbo options have your back for virtually any power level you want. The APS Intercooled Twin Turbo High Output System performs like a strong 9L Big Block and raises the LS1 performance enthusiast exclusively into the supercar club! The UPP twin turbo system is designed with style and stealth in mind. Purchased in 2006 when it had 8784 miles on. We engineered this kit alongside our cast manifolds so that the turbos mount directly behind the headlights. May 30, 2011 · The car sold. Compressor - 56 trim, 71mm diameter . Brand new release, first kit in our new S-line, we now have a solution for the GTO guys! Based off the older APS design, we have made some great changes and improvements to bring you the ultimate twin turbo kit for your GTO! Based off the older APS design, Huron Speed have made some great changes and improvements to bring you the ultimate twin turbo kit for your GTO! Please allow a few weeks for shipment. "These turbos build boost almost instantaneously!" exclaims Tom. qmbqc66, zy1, str, olga7, zmw, ya, k6, 9cev, 2oa3i6yb, yhbrb,