in my opinion HKS is the best brand for tuning japanese cars)Greddy is in the process of making one, also. Maybe you should wait for that....?
I agree... HKS sounds beasty.. like it's going to swallow u whole.. but very pricey... Joe Z i believe is the best bang for the buck... also top notch craftsmanship from what i've seen... couldn't afford either kit, but happy w/ Magnapacks for now...i think whatever exhaust you get, you'll get your moneys worth.
they both sound great!
BUT listening to youtube's video on Joe Z and HKS....HKS is freaking lovely!
If you dont mind. Can you post pics? Of the borla..I love my Borla. Get nothing but compliments, matter of fact I had a cop follow me to a gas station and tell me that it sounded 'Sick'