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TIAL 002622 V60.228P Wastegate 60mm .228 bar (3.31 psi) Purple Photo-0
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TIAL 002674 V60-1.048 Wastegate 60mm 1.048 bar (15.21 psi) Silver Photo-0
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TIAL 001932 MV-SA MVS wastegate all spring - silver Photo-0 TIAL 001932 MV-SA MVS wastegate all spring - silver
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TIAL 002017 MVSVS MVS Valve Seat Photo-0
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TIAL 002647 V60.592P Wastegate 60mm .592 bar (8.60 psi) Purple Photo-0
In stock Save 20%
TIAL 001059 Outlet Flange V50/60 for Wastegate Photo-0
TIALTIAL 001059 Outlet Flange V50/60 for Wastegate
Sale priceAED 91.03 Regular priceAED 113.79
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TIAL 000545 10MMAF Air Fitting Kit for TIAL Wastegates Photo-0 TIAL 000545 10MMAF Air Fitting Kit for TIAL Wastegates Photo-1
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TIAL 002954 MVS-P Wastegate 38mm, all springs, purple Photo-0
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TIAL 002950 MV-R P Wastegate 44mm, all springs, purple Photo-0
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TIAL 004088 MVR.8B Wastegate 44mm .8 Bar (11.60 psi) Blue Photo-0
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TIAL 000643 3844DIAASM Wastegate 38/41/44mm Diaphragm Asm Photo-0
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TIAL 003888 MVS.5BK Wastegate 38mm .5 Bar (7.25 psi) Black Photo-0
In stock Save 20%
TIAL 001990 MVSDIAASM DIAPHRAGM ASM Photo-0
TIALTIAL 001990 MVSDIAASM DIAPHRAGM ASM
Sale priceAED 176.53 Regular priceAED 220.66
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TIAL 001931 MVS Wastegate 38mm, all springs, silver Photo-0
In stock Save 20%
TIAL 001838 LG BLUE SPRING: 1.0 Bar/14.50 psi for WG38/40, .9 Bar/13.05 psi for WG44/46 FV0023374 REV Photo-0 TIAL 001838 LG BLUE SPRING: 1.0 Bar/14.50 psi for WG38/40, .9 Bar/13.05 psi for WG44/46 FV0023374 REV Photo-1
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TIAL 002953 Wastegate 38 mm Black Photo-0
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TIAL 001930 MV-R S Wastegate 44mm, all springs, steel Photo-0
In stock Save 20%
TIAL 001948 Diaphragm Assembly MVR Series Photo-0
TIALTIAL 001948 Diaphragm Assembly MVR Series
Sale priceAED 194.47 Regular priceAED 243.09
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TIAL 002955 MV-S RED Wastegate 38mm, all springs Photo-0
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TIAL 002949 Wastegate 44 mm Black Photo-0
TIALTIAL 002949 Wastegate 44 mm Black
Sale priceAED 2,024.56
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TIAL 003843 MVS1.7R Wastegate 38mm 1.7 Bar (24.6551 psi) Red Photo-0
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TIAL 002952 MVS-B Wastegate 38mm, all springs, blue Photo-0
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TIAL 002951 MV-R R Wastegate 44mm, all springs, red Photo-0
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TIAL 004350 MVR.7R Wastegate 44mm .7 Bar (10.15 psi) Red Photo-0
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TIAL 002948 MVR-B Wastegate 44mm, all springs, blue Photo-0
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TIAL 003841 MVS.5B Wastegate 38mm .5 Bar (7.25 psi) Blue Photo-0
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TIAL 003422 MVS.5R Wastegate 38mm .5 Bar (7.25 psi) Red Photo-0
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TIAL 003889 MVS.5 Wastegate 38mm .5 Bar (7.25 psi) Silver Photo-0
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TIAL 003840 MVS1.7BK Wastegate 38mm 1.7 Bar (24.6551 psi) Black Photo-0
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TIAL 004516 MVR.7B Wastegate 44mm .7 Bar (10.15 psi) Blue Photo-0
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TIAL 006749 MVR.5R Wastegate 44mm .5 Bar (7.25 psi) Red Photo-0
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TIAL 004247 MVS1.5R Wastegate 38mm 1.5 Bar (21.75 psi) Red Photo-0

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.