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3UZ Header flange for catalytic converter

XAT Racing Steel UZ Header Outlet Flanges for 3UZ Exhaust Manifold

Alright, lets see, who makes these...

What?? Nobody does? Oh, okay, guess we'll have to then!

Available in stainless steel, this pair (both included) are the same dimensions as the factory header flange, used on the SC430 for instance. If you're looking to make a set of headers that bolt up to the factory H or mid piping, this is what you'll need. Or perhaps your exhaust is rusted, and you just need replacement options.

As seen in the pictures, they match perfectly over a factory header, but still give plenty of room for improvement when it comes to flow.

We also make the flange that goes from the manifold to the head! That can be added as well.

Factory exhaust manifold not included. Why would you use one of those anyways? Ew.

Please note this is a different flange shape from the non-VVTi 1UZ, and they are not interchangeable

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XAT Racing
  • $110
In stock(50 items available)


    • SKU
    • Weight
      0.75 lbs
  • Manufacturer
    XAT Racing
  • Safety & Compliance
    • Prop 65 Yes/No

Most product ships from either the manufacture or largest wholesale location to pass the saving to you. Most orders will ship via UPS, as we will be able to provide the best rates and have had the least issues when using UPS.

IF YOU DO NOT LIKE THE AUTOMATED SHIPPING CALCULATOR'S RATES, PLEASE CONTACT US AND WE CAN GET YOU A BETTER ONE! Especially for anyone outside the USA, please contact us with a list of parts you'd like to order, and where you are located.

We accept the following payment methods:

Also Venmo and unmarked nonsequential dollar bills

  • Fitment Type
    Vehicle Specific
Toyota/LexusLexus LS/Celsior2001-2005 UCF30 LS430/Celsior3UZ-FE 4.3 V8
Toyota/LexusLexus GS/Aristo1998-2005 S1603UZ 4.3 V8 (2001-2005) UZS161
Toyota/LexusCrown Majesta1995-1999 S1501UZ-FE 4.0 V8 (UZS151, UZS155, UZS157)
Toyota/LexusLexus SC/Soarer1992-2000 Z301UZ-FE non-VVTi 4.0 V8 (92-97) UZZ30/31/32
Toyota/LexusLexus SC/Soarer1992-2000 Z301UZ-FE VVTi 4.0 V8 UZZ30 (1998-2000)

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