I was taking Joe the S guru's advice and checked it with a magnet to see if was Titanium but it's stuck to it, and isn't dull in colour..sounds really good for an oem exhaust
I just bought this one of Joe, its loud motherfuka and supposedly its S201. By the weight of it I assume its titanium, way lighter than the Genome STI I had before.
Only s203 and 204 came with titanium back box
If the magnet sticks it's not titanium
Some grades of stainless the magnet will stick so it's hard to tell
Tail pipe should be 125mm or 5" the only sti exhaust to come in that size . 1 of 5 backboxs Made by genome and as far as I know that model only came on the S201 . Yes they are very light but not titanium .
Only s203 and 204 came with titanium back box
If the magnet sticks it's not titanium
Some grades of stainless the magnet will stick so it's hard to tell