Okay. You live in smog inspection land (California or other) and are worried about passing the visual and smog portion of the test because you have a downpipe without CATS, or you are a Green conscious individual and want to do your part for society. This high flow cat shows only a loss of a few HP, yet it provides the necessary catalytic reaction when installed in your exhaust system to pass the smog portion of the test. While the Supra originally contained a pre-cat and a final cat (two total cats), we have not heard of a single person who has not passed the visual inspection as well. We are providing this as a service to the Supra community and do not guarantee passing the test (typical legal warning). 3.00" inlet and 3.00" outlet works perfect with most down pipes. Please note that the 49 state cats are NOT California legal.

These are Weld in versions. We also sell the flanged Bolt on version in the downpipe/exhaust section. Available in assorted sizes. Please contact us for more fitment options!