Shorty headers will give you top end power, long tubes will give you low end torque. I recommend ceramic coating, but it's expensive. H pipe will give you low rumble, x pipe will give you raspy growl. Personally, i'd go with ceramic equal length long tubes and an H pipe. Brand doesn't matter too much, just make sure the type of steel they use and make sure all piping is mandrel bent. Also, make sure you get the proper sized headers otherwise you won't realize your engine's full potential and you're just wasting money. Hope this helps.