De-cat Flanges

[moggs]

Spent An hour under the car repairing a leak and solving a rattle on the exhaust so decided to put the de-cat i had in the garage on. Took the cat off, offered the de-cat up to downpipe and the flange is bigger than the down pipe. its also at a slightly different angle.

Is this a williams de-cat??

 

[BenR]

A 16V flange sits at 90 deg and the willy at 45 deg.

Some exhaust systems are a larger bore and dont fit very well, and end up blowing unless you use 2 gaskets, loads of exhaust putty and some exhaust sealant......

 

[moggs]

Could be about 45% but are the flanges suppose to be the same size both ends? cos one side is bigger than the other. As in bolt holes further apart.

Also if it is from a williams would a williams downpipe fit on a 16V manifold?

 

[BenR]

Willy downpipe no.