I've been searching through the forum and can see people confused and saying different things about whether or not the front pipe (2nd cat) is compatible between the 2017 and pre-2017 86 models?
I've bought a used 2017 which is in perfect condition apart from the 2nd cat having a really slight hit from a speed hump. I could leave it as is but every now and then I hear a slight rattle obviously from the cat having some loose material inside. (image attached)
I'm thinking of either replacing it with a stock pre-2017 version I can get from a local wrecker (from a car that had done 30k kms) or pick up an aftermarket front pipe.
My two questions are: are 2017 models compatible with pre-2017 front pipes? Also if I go aftermarket (something like this:
https://www.mrcperformance.com.au/ve...-brz-high-flow) will it throw engine check codes since the cat has changed? I'm guessing not as there's no o2 sensor on the secondary cat?
Thanks!