Perrin's downpipe is better then the PDE downpipe I think. If you look at the PDE it's only a partial bellmouth. At least with the Perrin, it's a full fledged divorced wastegate setup and not something that is partial. Plus the looks of the Perrin are pretty good.

 

I have the P.D.E up & down pipes. They get the "Dan seal of approval".

 

My vote goes to PDE, I have seen these and the quality is unmatched, also, anyone who has these pieces seem to have nothing but great things to say about them.