Wastegates

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TIAL 003871 MVR.3BK Wastegate 44mm .3 Bar (4.35 psi) Black Photo-0
TIALTIAL 003871 MVR.3BK Wastegate 44mm .3 Bar (4.35 psi) Black
AED 2,024.56
Special order
TIAL 003985 MVR.8 Wastegate 44mm .8 Bar (11.60 psi) Silver Photo-0
TIALTIAL 003985 MVR.8 Wastegate 44mm .8 Bar (11.60 psi) Silver
AED 2,024.56
Special order
TIAL 003046 MVS1.0BK Wastegate 38mm 1.0 Bar (14.50 psi) Black
TIALTIAL 003046 MVS1.0BK Wastegate 38mm 1.0 Bar (14.50 psi) Black
AED 1,564.38
Special order
TIAL 002890 F38.5BK Wastegate 38mm .5 Bar (7.25 psi) Black
TIALTIAL 002890 F38.5BK Wastegate 38mm .5 Bar (7.25 psi) Black
AED 1,401.27
Special order
TIAL 002913 F38-1.0 Wastegate 38mm 1.0 Bar (14.50 psi) Silver
TIALTIAL 002913 F38-1.0 Wastegate 38mm 1.0 Bar (14.50 psi) Silver
AED 1,401.27
Special order
TIAL 005937 MVR.5P Wastegate 44mm .5 Bar (7.25 psi) Purple Photo-0
TIALTIAL 005937 MVR.5P Wastegate 44mm .5 Bar (7.25 psi) Purple
AED 1,955.53
Special order
TIAL 002885 F38.4BK Wastegate 38mm .4 Bar (5.80 psi) Black
TIALTIAL 002885 F38.4BK Wastegate 38mm .4 Bar (5.80 psi) Black
AED 1,401.27
Special order
TIAL 004327 MVS1.0P Wastegate 38mm 1.0 Bar (14.50 psi) Purple Photo-0
TIALTIAL 004327 MVS1.0P Wastegate 38mm 1.0 Bar (14.50 psi) Purple
AED 1,564.38
Special order
TIAL 002935 F38-1.4BK Wastegate 38mm 1.4 Bar (20.30 psi) Black
TIALTIAL 002935 F38-1.4BK Wastegate 38mm 1.4 Bar (20.30 psi) Black
AED 1,401.27
Special order
TIAL 004250 MVS1.3BK Wastegate 38mm 1.3 Bar (18.85 psi) Black Photo-0
TIALTIAL 004250 MVS1.3BK Wastegate 38mm 1.3 Bar (18.85 psi) Black
AED 1,633.41
Special order
TIAL 003853 MVS.8R Wastegate 38mm .8 Bar (11.60 psi) Red
TIALTIAL 003853 MVS.8R Wastegate 38mm .8 Bar (11.60 psi) Red
AED 1,633.41
Special order
TIAL 004682 MVR-1.1BK Wastegate 44mm 1.1 Bar (15.95 psi) Black Photo-0
TIALTIAL 004682 MVR-1.1BK Wastegate 44mm 1.1 Bar (15.95 psi) Black
AED 2,024.56
Special order
TIAL 003909 MVS.8BK Wastegate 38mm .8 Bar (11.60 psi) Black
TIALTIAL 003909 MVS.8BK Wastegate 38mm .8 Bar (11.60 psi) Black
AED 1,633.41
Special order
TIAL 004605 MVS1.5P Wastegate 38mm 1.5 Bar (21.75 psi) Purple Photo-0
TIALTIAL 004605 MVS1.5P Wastegate 38mm 1.5 Bar (21.75 psi) Purple
AED 1,633.41
Special order
TIAL 004770 MVR.5 Wastegate 44mm .5 Bar (7.25 psi) Silver Photo-0
TIALTIAL 004770 MVR.5 Wastegate 44mm .5 Bar (7.25 psi) Silver
AED 1,955.53
Special order
TIAL 003921 MVR-1.3BK Wastegate 44mm 1.3 Bar (18.85 psi) Black Photo-0
TIALTIAL 003921 MVR-1.3BK Wastegate 44mm 1.3 Bar (18.85 psi) Black
AED 2,024.56
Special order
TIAL 002895 F38.6BK Wastegate 38mm .6 Bar (8.70 psi) Black
TIALTIAL 002895 F38.6BK Wastegate 38mm .6 Bar (8.70 psi) Black
AED 1,401.27
Special order
TIAL 004571 MVR.9P Wastegate 44mm .9 Bar (13.05 psi) Purple Photo-0
TIALTIAL 004571 MVR.9P Wastegate 44mm .9 Bar (13.05 psi) Purple
AED 2,024.56
Special order
TIAL 003973 MVS.6 Wastegate 38mm .6 Bar (8.70 psi) Silver
TIALTIAL 003973 MVS.6 Wastegate 38mm .6 Bar (8.70 psi) Silver
AED 1,633.41
Special order
TIAL 002938 F38-1.5 Wastegate 38mm 1.5 Bar (21.75 psi) Silver
TIALTIAL 002938 F38-1.5 Wastegate 38mm 1.5 Bar (21.75 psi) Silver
AED 1,401.27
Special order
TIAL 001706 F38.3 Wastegate 38mm .3 Bar (3.63 psi) Silver
TIALTIAL 001706 F38.3 Wastegate 38mm .3 Bar (3.63 psi) Silver
AED 1,401.27
Special order
TIAL 003444 MVR-1.0R Wastegate 44mm 1.0 Bar (14.50 psi) Red Photo-0
TIALTIAL 003444 MVR-1.0R Wastegate 44mm 1.0 Bar (14.50 psi) Red
AED 1,955.53
Special order
TIAL 004478 MVR.3 Wastegate 44mm .3 Bar (4.35 psi) Silver Photo-0
TIALTIAL 004478 MVR.3 Wastegate 44mm .3 Bar (4.35 psi) Silver
AED 2,024.56
Special order
TIAL 002918 F38-1.1 Wastegate 38mm 1.1 Bar (14.50 psi) Silver
TIALTIAL 002918 F38-1.1 Wastegate 38mm 1.1 Bar (14.50 psi) Silver
AED 1,401.27
Special order
TIAL 004493 MVR-1.3P Wastegate 44mm 1.3 Bar (18.85 psi) Purple Photo-0
TIALTIAL 004493 MVR-1.3P Wastegate 44mm 1.3 Bar (18.85 psi) Purple
AED 2,024.56
Special order
TIAL 006134 MVS1.1BK Wastegate 38mm 1.1 Bar (15.95 psi) Black
TIALTIAL 006134 MVS1.1BK Wastegate 38mm 1.1 Bar (15.95 psi) Black
AED 1,633.41
Special order
TIAL 003974 MVS.6R Wastegate 38mm .6 Bar (8.70 psi) Red
TIALTIAL 003974 MVS.6R Wastegate 38mm .6 Bar (8.70 psi) Red
AED 1,633.41
Special order
TIAL 002900 F38.7BK Wastegate 38mm .7 Bar (10.15 psi) Black
TIALTIAL 002900 F38.7BK Wastegate 38mm .7 Bar (10.15 psi) Black
AED 1,401.27
Special order
TIAL 002908 F38.9 Wastegate 38mm .9 Bar (13.05 psi) Silver
TIALTIAL 002908 F38.9 Wastegate 38mm .9 Bar (13.05 psi) Silver
AED 1,401.27
Special order
TIAL 002920 F38-1.1BK Wastegate 38mm 1.1 Bar (14.50 psi) Black
TIALTIAL 002920 F38-1.1BK Wastegate 38mm 1.1 Bar (14.50 psi) Black
AED 1,401.27
Special order
TIAL 004476 MVR.4BK Wastegate 44mm .4 Bar (5.80 psi) Black Photo-0
TIALTIAL 004476 MVR.4BK Wastegate 44mm .4 Bar (5.80 psi) Black
AED 2,024.56
Special order
TIAL 004818 MVR.8R Wastegate 44mm .8 Bar (11.60 psi) Red Photo-0
TIALTIAL 004818 MVR.8R Wastegate 44mm .8 Bar (11.60 psi) Red
AED 2,024.56

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.