I am looking for the cheapest price possible on these items. I have searched for awile and still cant find any place cheaper than the manafacturers price. I am looking for a JDM silver bullet exhaust, 4lb pulley (or 6lb, which is better on a stock truck, the only mods i will add now are the ones i am listing.) and a custom programed tuner. What is the best tuner and who is the best person to get it tuned by? Where can i get these item for the cheapest price possible. Thanks for the help!

And also will hi-flow cats help the hp and torque with the mods i am planning??