Re: 156 Exhaust query
just replaced mine, you have a few options -
1. Buy cheap front section for approx £70, I look at one at my local motor factors and decided against it, very badly made and the 2 into 1 join was awful, I'd also read of people having issue with these whistling.
2. Buy just the flexi section (there are some on ebay) and have the old cut out.
3. Buy original front section.
I bought an original front section from alfaworkshop for approx £130 delivered, quality is 10x better than the crap that most places will sell you.
Fitting can be a pain, bolts that connect the front section to the manifold can sheer off and need to be drilled out and the lambda can be a difficult to remove.
You will need new gaskets too, around £15 for the pair from a dealer...