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STM Billet Welding Purge Block for T4 Flange

  • Backed by real installs and tuning experience at FAST of West Chester

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$49.00
$49.00
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The STM T4 billet purge/clamping block allows us to securely bolt a T4 turbo outlet flange and easily evacuate oxygen while welding to ensure a clean, solid weld and prevent warping. 

The aluminum block helps draw heat away from the flange while welding and you can bolt the flange securely to the block to prevent warping. Comes with 1/8" NPT threads to accept your purge fittings. These are the same purge blocks our fabricators use and they are made in-house at STM.

Features & Specs:
• For T4 turbo flanges
• CNC machined 
• 6061 billet aluminum
• Seals off the flange for purging
• Solid surface to hold the flange flat during welding
• Helps reduce warpage when welding
• Aluminum block helps pull heat away from the flange
• 1/8" NPT threads to accept purge fitting of your choice
• Weighs 30.30 ounces

What is Weld Purging?
Weld purging is the process of evacuating oxygen from a pipe, tank or chamber using gas such as argon or nitrogen. This seals off oxygen from entering the weld pool - which can cause poor quality and loss of corrosion resistance.

Purchase Includes:
(1) Purge Block

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  • Earn FAST points on this part!
  • Backed by real-world installs
  • FAST WC Team Approved
STM Billet Welding Purge Block for T4 Flange

$49.00

Why Drivers Choose FAST of West Chester

  • I can't recommend this place enough. Being able to trust a shop in the performance world is big. The 2hr drive to get there, is worth knowing the job will be done right. Very happy to have found this shop, to
    support my builds going forward.

    Donald Wojnar

  • I recently had the pleasure of working with FAST of West Chester for some performance upgrades on my 2022 WRX, and the experience was nothing short of exceptional. I opted for a Borla S-Type exhaust and Cygnus Coilovers, and the team at FAST nailed the installation, fitment, and setup to a T.

    Adam Cranston

  • The team at FAST are excellence in every way. First, I consulted with Dave on mods for my HPDE track car. He listened and advised me on the best parts & mods to achieve my goals. He was patient & gave me space to research the options presented & worked with me through several changes before we built. Second, the build execution was flawless, proper heat shielding, bracing and poly everywhere. All components worked as advertised.

    Bryce Budd

  • This place has been my go to shop for all things Subaru. From simple service to performance parts and tuning, they have been top notch.

    William Brunell

  • Excellent shop. They installed a Cobb Stage 2 DP and Whiteline Sway bars and end links on my 2013 WRX. The work was done right and clean. The estimate was accurate. They were very knowledgeable, friendly and gave me the straight scoop on exactly what I was getting for the money
    and what I needed to get where I want to be with it. I'd recommend them
    to any car enthusiast.

    Devin Greco

Does it come with a warranty?

Most products we carry include a manufacturer warranty. Since we work with top performance brands, warranty coverage can vary by product. If you have questions about a specific item, reach out — we’re happy to help.

Do you offer installation help or advice?

Yes — we don’t just sell parts, we install and tune them too. FAST of West Chester is a real performance shop, and we’ve worked hands-on with many of the products we carry. If you have questions about fitment, installs, or building your setup, our team can point you in the right direction.

How fast is shipping?

Many of our products ship the same day or next business day, depending on availability. We work hard to get parts out fast so you can get your build moving without delays.

What’s your return policy?

Returns for exchange or refund are accepted within 30 days of receiving your order. Items must be in new, unused condition and in original packaging. If you have any questions, our team will help make the process easy.

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