Just installed the LTH and the 18'' res last night. The long tube headers were very frustrating to install. From getting the heat shield out to getting to the nuts on the stock manifold. But worth every penny. the cat back exhaust was very straight forward and the fitment was nothing short of amazing.
But the most important note I have to say is to be VERY careful swapping out the air/fuel senors in the stock manifold. 3 of the 4 came out without a hitch, but the 4th must have been cross threaded when installed, bc it was mangled when I removed it...this sensor is $500 !
I didnt want to start/ or run the Z without the sensor just to be on the safe side...so unfortunately I cant comment on the sound. But looks amazing!
oh yeah, last thing...I would 100% advise to pre PB Blaster ALL of your nuts and bolts leading up to the install. Almost went though a whole can...life saver.
Thanks guys. I attached a picture of the Z on the lift where it will stay untll i get my sensor...Sittin above the Viper comp coupe.