Wastegates

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TIAL 003867 MVR.5B Wastegate 44mm .5 Bar (7.25 psi) Blue Photo-0
TIALTIAL 003867 MVR.5B Wastegate 44mm .5 Bar (7.25 psi) Blue
AED 1,955.53
Special order
TIAL 004632 MVR.9R Wastegate 44mm .9 Bar (13.05 psi) Red Photo-0
TIALTIAL 004632 MVR.9R Wastegate 44mm .9 Bar (13.05 psi) Red
AED 2,024.56
Special order
TIAL 005184 MVR.9B Wastegate 44mm .9 Bar (13.05 psi) Blue Photo-0
TIALTIAL 005184 MVR.9B Wastegate 44mm .9 Bar (13.05 psi) Blue
AED 2,024.56
Special order
TIAL 004411 MVS.9B Wastegate 38mm .9 Bar (13.05 psi) Blue Photo-0
TIALTIAL 004411 MVS.9B Wastegate 38mm .9 Bar (13.05 psi) Blue
AED 1,633.41
Special order
TIAL 001841 LG YELLOW SPRING: .7 Bar/10.15 psi for WG38/40, .6 Bar/8.70 psi for WG44/46 FV0023376 REV Photo-0 TIAL 001841 LG YELLOW SPRING: .7 Bar/10.15 psi for WG38/40, .6 Bar/8.70 psi for WG44/46 FV0023376 REV Photo-1
TIALTIAL 001841 LG YELLOW SPRING: .7 Bar/10.15 psi for WG38/40, .6 Bar/8.70 psi for WG44/46 FV0023376 REV
AED 134.48
Special order
TIAL 003765 MVS.9BK Wastegate 38mm .9 Bar (13.05 psi) Black Photo-0
TIALTIAL 003765 MVS.9BK Wastegate 38mm .9 Bar (13.05 psi) Black
AED 1,633.41
Special order
TIAL 004349 MVS.7R Wastegate 38mm .7 Bar (10.15 psi) Red Photo-0
TIALTIAL 004349 MVS.7R Wastegate 38mm .7 Bar (10.15 psi) Red
AED 1,633.41
Special order
TIAL 004090 MVS.7BK Wastegate 38mm .7 Bar (10.15 psi) Black Photo-0
TIALTIAL 004090 MVS.7BK Wastegate 38mm .7 Bar (10.15 psi) Black
AED 1,633.41
Special order
TIAL 002665 V60.897B Wastegate 60mm .897 bar (13.02 psi) Blue Photo-0 TIAL 002665 V60.897B Wastegate 60mm .897 bar (13.02 psi) Blue Photo-1
TIALTIAL 002665 V60.897B Wastegate 60mm .897 bar (13.02 psi) Blue
AED 2,667.20
In stock Save 20%
TIAL 001839 LG GREEN SPRING: .9 Bar/13.05 psi for WG38/40, .8 Bar/11.60 psi for WG44/46 FV0023375 REV Photo-0 TIAL 001839 LG GREEN SPRING: .9 Bar/13.05 psi for WG38/40, .8 Bar/11.60 psi for WG44/46 FV0023375 REV Photo-1
TIALTIAL 001839 LG GREEN SPRING: .9 Bar/13.05 psi for WG38/40, .8 Bar/11.60 psi for WG44/46 FV0023375 REV
AED 107.58 AED 134.48
In stock Save 20%
TIAL 001840 LG RED SPRING: .8 Bar/11.60 psi for WG38/40, .7 Bar/10.15 psi for WG44/46 FV0023373 REV Photo-0
TIALTIAL 001840 LG RED SPRING: .8 Bar/11.60 psi for WG38/40, .7 Bar/10.15 psi for WG44/46 FV0023373 REV
AED 107.58 AED 134.48
Special order
GREDDY 11900413 Wastegate Flange; Type-C High Flow Inlet
GREDDYGREDDY 11900413 Wastegate Flange; Type-C High Flow Inlet
AED 72.85
Special order
GREDDY 11501548 External Wastegate; Type C; Spring:0.8-1.2 kg/cm2;Valve:47mm
GREDDYGREDDY 11501548 External Wastegate; Type C; Spring:0.8-1.2 kg/cm2;Valve:47mm
AED 6,216.00
Special order
GREDDY 11501534 External Wastegate; Type R; Valve:47mm;Spring:1.4-On kg/cm2
GREDDYGREDDY 11501534 External Wastegate; Type R; Valve:47mm;Spring:1.4-On kg/cm2
AED 5,244.75
Special order
GREDDY 11501554 External Wastegate; Type C; Valve:47mm;Spring:1.4-On kg/cm2
GREDDYGREDDY 11501554 External Wastegate; Type C; Valve:47mm;Spring:1.4-On kg/cm2
AED 6,216.00
Special order
GREDDY 11501551 External Wastegate; Type C; Valve:47mm;Spring:1.1-1.5 kg/cm2
GREDDYGREDDY 11501551 External Wastegate; Type C; Valve:47mm;Spring:1.1-1.5 kg/cm2
AED 6,216.00
Special order
GREDDY 11900261 Wastegate Spring; For Type R/C/CH External Wastegate; Color:Blue;Pressure:1.1-1.
GREDDYGREDDY 11900261 Wastegate Spring; For Type R/C/CH External Wastegate; Color:Blue;Pressure:1.1-1.
AED 242.81
Special order
GREDDY 11900361 Wastegate Flange; Type-R/C Inlet/Outlet
GREDDYGREDDY 11900361 Wastegate Flange; Type-R/C Inlet/Outlet
AED 72.85
Special order
GREDDY 11501531 External Wastegate; Type R; Valve:47mm;Spring:1.1-1.5 kg/cm2
GREDDYGREDDY 11501531 External Wastegate; Type R; Valve:47mm;Spring:1.1-1.5 kg/cm2
AED 5,244.75
Special order
GREDDY 11501560 External Wastegate; Type CH; Valve:56mm;Spring:1.5+ kg/cm2 spring
GREDDYGREDDY 11501560 External Wastegate; Type CH; Valve:56mm;Spring:1.5+ kg/cm2 spring
AED 6,216.00
Special order
GREDDY 11900311 Wastegate Diaphram; For Type-R/C Wastegate
GREDDYGREDDY 11900311 Wastegate Diaphram; For Type-R/C Wastegate
AED 801.29
Special order
GREDDY 11501528 External Wastegate; Type R; Spring:0.8-1.2 kg/cm2;Valve:47mm
GREDDYGREDDY 11501528 External Wastegate; Type R; Spring:0.8-1.2 kg/cm2;Valve:47mm
AED 5,244.75
Special order
GREDDY 11900260 Wastegate Spring 0,8-1,2, yelow
GREDDYGREDDY 11900260 Wastegate Spring 0,8-1,2, yelow
AED 242.81
Special order
GARRETT 895520-0001 Fitting Water 8mm for Wastegate GVW-40 Photo-0 GARRETT 895520-0001 Fitting Water 8mm for Wastegate GVW-40 Photo-1
GARRETTGARRETT 895520-0001 Fitting Water 8mm for Wastegate GVW-40
AED 32.36
Special order
GARRETT 895518-0002 Washer Crush 8mm for Wastegate GVW-40
GARRETTGARRETT 895518-0002 Washer Crush 8mm for Wastegate GVW-40
AED 4.49
Special order
GARRETT 898344-0008 Spring Valve Black for Wastegate GVW-40 Photo-0 GARRETT 898344-0008 Spring Valve Black for Wastegate GVW-40 Photo-1
GARRETTGARRETT 898344-0008 Spring Valve Black for Wastegate GVW-40
AED 52.13
Special order
GARRETT 898344-0002 Spring Valve Blue for Wastegate GVW-40 Photo-0 GARRETT 898344-0002 Spring Valve Blue for Wastegate GVW-40 Photo-1
GARRETTGARRETT 898344-0002 Spring Valve Blue for Wastegate GVW-40
AED 52.13
Special order
GARRETT 910475-0003 V-band Kit, Inlet 45mm / Outlet 50mm (includes V-band, Bolt, Locknut) for Wastegate GVW-45 Photo-0 GARRETT 910475-0003 V-band Kit, Inlet 45mm / Outlet 50mm (includes V-band, Bolt, Locknut) for Wastegate GVW-45 Photo-1
GARRETTGARRETT 910475-0003 V-band Kit, Inlet 45mm / Outlet 50mm (includes V-band, Bolt, Locknut) for Wastegate GVW-45
AED 368.51
Special order
GARRETT 894649-0002 Flange Outlet Weld 45mm for Wastegate GVW-45 Photo-0 GARRETT 894649-0002 Flange Outlet Weld 45mm for Wastegate GVW-45 Photo-1
GARRETTGARRETT 894649-0002 Flange Outlet Weld 45mm for Wastegate GVW-45
AED 91.68
Special order
GARRETT 910478-0001 Valve / Bushing Kit 40mm (includes valve, bushing; seal washer, O-ring, valve stem nut and seat) for Wastegate GVW-40 Photo-0 GARRETT 910478-0001 Valve / Bushing Kit 40mm (includes valve, bushing; seal washer, O-ring, valve stem nut and seat) for Wastegate GVW-40 Photo-1
GARRETTGARRETT 910478-0001 Valve / Bushing Kit 40mm (includes valve, bushing; seal washer, O-ring, valve stem nut and seat) for Wastegate GVW-40
AED 485.35
Special order
GARRETT 894648-0001 Seat Valve 45mm for Wastegate GVW-45 Photo-0 GARRETT 894648-0001 Seat Valve 45mm for Wastegate GVW-45 Photo-1
GARRETTGARRETT 894648-0001 Seat Valve 45mm for Wastegate GVW-45
AED 145.60
Special order
GARRETT 910476-0002 Diaphragm Kit, 45mm, 50mm (includes Diaphragm assy and valve stem nut) for Wastegate GVW-45 Photo-0 GARRETT 910476-0002 Diaphragm Kit, 45mm, 50mm (includes Diaphragm assy and valve stem nut) for Wastegate GVW-45 Photo-1
GARRETTGARRETT 910476-0002 Diaphragm Kit, 45mm, 50mm (includes Diaphragm assy and valve stem nut) for Wastegate GVW-45
AED 323.57

Mastering Boost Control: A Guide to Wastegates

A wastegate is the brain of your turbo system. Its job is to control boost pressure by diverting excess exhaust gas away from the turbine wheel, protecting your engine from over-boosting. Choosing the right type and size is critical for performance and reliability. This guide will help you select the correct component.

Step 1: External Wastegate (EWG) or Internal Actuator (IWG)?

Your turbo setup dictates your choice. Use our "Product type" filter to find what you need:

  • External Wastegates: The choice for high-horsepower and custom turbo kits. These are standalone units that offer the most precise boost control, preventing issues like boost creep. This is where you'll find the industry-leading products from Tial and Turbosmart.
  • Internal Wastegate Actuators: An essential upgrade for cars with factory turbochargers. The stock actuator is often too weak to handle the increased pressure from an ECU tune. An upgraded actuator holds the wastegate shut, allowing the turbo to build and hold boost reliably.
  • Springs & Accessories: Here you'll find different rate springs to set your base boost pressure, as well as V-band clamps and flanges for installation.

Step 2: Key Selection Criteria

Two parameters are critical for performance:

Parameter Why It's Important General Rule
Size (e.g., 44mm, 60mm) Must be large enough to flow enough exhaust gas to control boost. Too small = boost creep. Bigger engine displacement and higher power targets require a larger wastegate.
Spring Pressure (e.g., 7 psi / 0.5 bar) Determines the minimum boost pressure your system can run. Choose a spring pressure equal to your desired minimum boost level. Higher boost levels are then achieved using a boost controller.