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XAT Racing Mk3 Supra High Flow Cat MkIII 86-92
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XAT Racing Mk3 Supra High Flow Cat MkIII 86-92


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Please note due to draconian laws, we are not able to ship these to a California address. Please support the RPM act.

We are proud to release our in house high flow catalytic converter for the 1986.5 to 1992 Toyota Supra in 3" diameter! This is a true flanged bolt-on design which is a direct replacement for the factory CAT as you can see in the photo. Expect an increase of ~5% in power and a quicker turbo spool. These are bolt in versions. We also sell the weld in version in the downpipe/exhaust section. We use stainless for these, as shown. These are 49 state legal. Not legal in California. 

You will need to measure your existing cat to make sure we send you the right version, either 11 inches or 12 inches. Please let us know at the time of ordering the measurement yours is, as these are made to order in each case.

Please note that the gaskets are not included, but very easy to find and source locally.

  • $299
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  • Weight
    1 lbs
  • SKU
    XAT-A70-HFC
  • I measured my car and I need
    12.5", 11.5", Other (let us know)

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

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