Originally Posted by Quicksilvers

Overall for LTH’s the Motordyne LTH’s are excellent quality and have nice welds on them. The only negative I have seen after you install your LTH’s and plan to drive your Z in rain or snow they are made of 304 polished stainless steel over some time surface rust is possible you should get them ceramic coated if Motordyne does not offer ceramic coating your LTH’s as an option. Also ceramic coating will help with heat as well. Do you plan on installing straight pipes,resonators,or HFC? It will depend on what whp and wtq gains you actually see and also I would advise after you do your LTH install to retune. Although the answer would be yes you will gain whp and wtq after you install LTH’s but your Genuine Nissan OEM headers are not a bottleneck in your exhaust system. LTH header install would be worth it I believe if you are doing to labor. If you are paying labor to a shop to install your LTH for you I have seen people pay be charged 8-10+ hours labor depends on how is installing them? My first LTH install took 8 hours. The cons are that all LTH brands for our Z’s are expensive and are labor intensive. The PPE and FI LTH’s are also excellent quality LTH’s. I installed the Motordyne LTH’s along with the XYZ and straight pipes on a previous Z it was a nice set up I liked it.