I have been looking at exhausts for ages and have found a second hand bargain system for sale locally so am going to go for it. It suddenly dawned on me that i am fairly sure the manifold, middle & rear sections will fit, but I have a wagon (smaller turbo) what if the downpipe is from an early saloon car? is the tdo5 different or indeed if its off an sti it could be an IHI (i think thats what its called?) turbo... different again?

Basically are all classic downpipe flanges the same?

 

yes they are all the same the only time the flanges have been changed is when the twin scroll was used.

 

thank you I thought they were but had visions of buying the thing only to discover it wont fit after I have the car in bits! clever helpful subaru!