Just looking for best price and customer service on the TST Box. Made up my mind this is they way to go. I have an early '04 555 with 6 speed. I am also looking for an exhaust elbow off of a late '04 or '05 if anyone has one they have took of to put on an exhaust brake. I want to do a true 4" exhaust with a brake but can't buy the box,brake, and exhaust all at once.