Damn that's a good deal, an no wait! I waited 13 weeks for my LTH/CBE combo.
You should expect 17-19 hp by themselves, a little less paired with a CBE. For example, with 2 mods that should each net 15 hp, you should get ~25hp combined.
The sound is awesome, much louder and very raw. Think borderline racecar status. You can see some of the vids on my journal
Someone needs to get this, it's an awesome addition and these things are top notch build quality! Also no CEL's
I survived Zdayz 2013
(barely)