i am going to buy the jet-hot lt's but need to decide on what else to run. either true duals or a cat back. eventually i plan on being around 400rwhp N/A. let me know what you would suggest. size of piping and systems.

 

IF you plan to go all out, then you will probably want true duals. If its mainly a steet car or cruiser, most likely you want a catback. IF you get teh duals go with 2 1/2 probably on pipe size from the headers back, 3 inch is plenty doable though, just depends on your goals.

 

3 inch cat back is all you need for 400 rwhp.