Stage 3 "Street Demon" series turbo kit with a stainless steel manifold for Toyota 4A-GE and 4A-GZE powered cars, covering 16V bigport and smallport engines plus JDM 20V Silvertop and Blacktop swaps. The package covers the turbo, manifold, intercooler, piping, oiling, and supporting parts in one kit. It works with automatic or manual transmissions and lets you keep A/C and power steering on most models.
Engine Compatibility
- 4A-GE, 4A-GEC, 4A-GELC, and 4A-GZE (16V bigport and smallport)
- JDM Silvertop AE101 20V 4A-GE
- JDM Blacktop AE111 20V 4A-GE
- Does not fit 4A-FE or 7A-FE engines
Vehicle Fitment
- 1985–1987 Toyota Corolla GT-S AE86
- 1985–1989 Toyota MR2 AW11, including supercharged
- 1988–1989 Toyota Corolla FX16 AE82
- 1988–1991 Toyota Corolla GT-S AE92
- 1988 Chevrolet Nova Twin Cam
- 1990–1991 Geo Prizm GSi
Included in the Kit
- T3 turbocharger
- Stainless steel turbo manifold
- Front-mount intercooler
- Aluminum intercooler piping kit
- Turbo oiling kit
- Internal wastegate kit
- Blow-off valve kit
- Manual boost controller kit
- Fuel pressure regulator and filter kit
- Electronic turbo timer
- Battery relocation kit
- Slimline cooling fan
- Oil catch can
- Coolant bung
- Heat wrap
- Cone air filter
Turbocharger
- T3 unit
- 0.57 trim compressor wheel
- 0.50 A/R compressor housing, 0.63 A/R turbine housing
- Wet float bearings, balanced
- 3" inlet / 2" outlet
- 1/8" NPT oil inlet
- Oil fitting gaskets and mounting studs included
Turbo Manifold
- TIG-welded 321 stainless steel
- Tubular design with large primaries
- Thick flanges, ported and polished finish
Intercooler and Piping
- Lightweight aluminum front-mount intercooler, TIG welded
- Aluminum 2.5" piping: (2) 90°, (2) 60°, (2) 45° bends and (2) straight pipes
- (2) 2.5" 90° and (6) 2.5" straight silicone couplers
- (16) stainless worm-gear clamps
- Piping may need light modification to fit
Boost Control
- Internal wastegate kit: bolts to the included turbo, V-band flange and clamp included, pressure starts at 8 psi
- Manual boost controller: CNC-machined anodized aluminum, adjustable, with install kit
- Blow-off valve kit: vents pressure surges on shifts and lift-off, with install kit
Oiling and Fuel
- Turbo oiling kit: oil feed line and fittings, high-temperature 550 psi oil return line, turbo drain, gaskets and hardware
- Adjustable fuel pressure regulator with gauge and -6AN billet aluminum inline filter, with install kit
- Polished oil catch can with install kit
Supporting Parts
- Electronic turbo timer with LED display, auto mode, and pigtail wiring for proper turbo cool-down
- Aluminum battery relocation kit with cables, straps, and hardware
- Slimline reversible push/pull cooling fan, curved blades, 1.25" outer / 2.50" inner thickness, zip-tie mounting tabs
- 38 mm aluminum coolant bung, anodized blue
- Heat wrap, 1" wide x 50 ft roll
- High-flow washable cone air filter
Good to Know
- For 4A-GZE engines, the gasket must be trimmed before installation to clear the alternator bracket.
- Power results depend on boost level, tuning, fueling, and engine condition. High-boost use requires a built engine and supporting modifications.
- Engine management tuning is required. Professional installation is recommended.