3 Inch exhaust system
 

Just wondering if a 3 inch centre section and back box will bolt directly onto a standard downpipe on a classic impreza.

Will have to be a system that mates up to the Subaru oe donut gasket and not a solid flange type that uses a flat crush gasket.

Thank you, I do have a decat downpipe to go on but i dont want to put it on yet because of overboost. so ill wait until a remap is ready.

Be bloody noisy mate

Decat downpipe centre box and rear box?

What kind of downpipe do you have, as no point getting a system to match oe if your flange on your deact is different.

Flange on this system is flat gasket type. Guy said he had it on a standard cat until he went decat