Working on a full turbo-back exhaust system for my 1990 FC3S S5 turbo(obviously), currently worked out the cat-back and cat, just kinda lost as to what i should be buying from the cat up.

Using a Greddy Ti-R cat-back and Knight Sports cat.

Thanks people.

 

go to ebay they usually sell the whole "Turbo back" system for ~$300. i bought one for my car several years ago and it works great and bolted right up. 3" straight pipes fromthe turbo back. it was the best bang for the buck yet.