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Hello,
these are the catalytic converters on my S4 T2
are these still ok to use?
This is the rear of the first one. Probably better to remove this one right? This is the part im not sure about and thats the rear of the last one. looks fine to me
Absolutely not. If you have to ask the question, you already know the answer. Do you need a cat for your state? If not, throw that sucker in the corner and get a mid-pipe. Do NOT put that back in your car!!
Absolutely not. If you have to ask the question, you already know the answer. Do you need a cat for your state? If not, throw that sucker in the corner and get a mid-pipe. Do NOT put that back in your car!!
should i remove the air pump or adapt it to the new cat?
and if i go for a 2,5 or 3 inch exhaust on the stock intake do i have to port the wastegate to prevent boost creep?
11-10-21, 11:04 AM
