I have the Brullen and performance #'s are about the same. But these look kick ass! For anyone deciding between Brullen and Bosal go with Bosal (especially if you don't want a headache)!
The Brullen looks great and SOUNDS(!) great but the jig they used to make the system is incorrect and I ended up having to have a shop (eek) cut and refinish my system to make it look right on the SVT (they didn't even sit right on the outlets, I had to have my shop do a lot of work to make it look perfect)
I'll probably put the Brullen on my 96 and upgrade to the Bosal later this year for my SVT.