i have a bad cat on my 1997 ford explorer and i have replacement cats. they are high flows but the are for a bigger diaminter pipe and the pipe on the explorer is smaller than what is on the end of the cat. if i use reducers and weld them in will that be ok?
Your car will act differently with all that air going through it. You may lose some low end power, but gain some high end power. It may need a tune to run smoothly with peak performance. Your check engine light might come on. It will sound louder. Also, It may not pass a smog check if you have one where you're living. If you can deal with all of this, then I would say it will be ok. If not, then you will have a lot of headaches.
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