I own a 2014 IS350 fsport and recently bought a used full Ark exhaust system with HF cats but its from an 2015 RC350.
both cars are AWD.
From my understanding the axle-back is a direct fit ( i already bought the 2017+ updated diffuser )
My question is: is it possible to install the whole system with midpipes on the is350 with modification ? ( IS 4door being a longer car than the RC coupe )


this is the exhaust i picked up
https://www.rr-racing.com/Ark-GripEx...1511-0215g.htm

 

Dont think it will fit without modification. Why not just buy the one made for IS350 AWD? Also, beware of the HF Cats as they will come loose and rattle inside

 

Mid pipes are different, the axle back is what's the same. A decent muffler shop should still be able to help you out.

 

I want quad exhaust. & I found it used on marketplace in my area at a good price with low kms.
He did not want to sell axle back separately. So I bought the whole setup. I need new gaskets. Just unsure if I want to modify the midpipe or not. 🤔