^^^ No problem, thank you!

I have over 1300 miles on these cats now with no problems to date and no CELs.

cel's with HFC's seem to be hit and miss. I had a CEL from day one with the berks on my 08 G37S. Whent with Fast INtentions on my 09 G37S and have not had a CEL. But I knopw people that have had problems with both.

cool. it'll be like working on my 300zx haha. 300zx's have evil bolts everywhere...

Nice write-up. This is one of the first mods I'll be making, along with a full cat-back exhaust.

Excellent write up and great pictures. :tup:

yep ill be doing this install in about a week

Its an excellent write-up. I look forward to the challenge of doing this mod myself..

i did this full install in about 5 hours total. Including setup and clean up. Wasnt too difficult.

One thing I did do is the passenger side was actually easy to get to. I didnt have to get into the engine bay to remove the passenger side top bolt on the cat. PS i have a 350

Everything else went great, except my knuckles, they are tore up now! haha Sounds sexy i love it.

I started installing my HFC technically yesterday. If you some time and want to ease some frusteration with those dreaded top 2 bolts that connect the HFC>Exhaust Manifold here's a technique I used that made it seem not as difficult to remove. Don't get me wrong they are on their tight..but it didn't seem as bad.

1. Sprayed WD40 on all the bolts. Heated up the car. Let the car cool over night. Sprayed it again, then removed.

I don't know if driving the car after i sprayed had anything to do with making it easier but I didn't break any tools or strip any bolts.

I used 1/2 drivers with 14MM 6PT socket to reduce the chance of stripping the bolt. I used a 20 inch/10inch extension bar with the joint socket and a huge breaker bar. The hardest bolt i had a hard time with was on the bottom bolt. The steering column seems to be in the way. I decided it was easier to feed the breaker bar through the side next to the tire.

Got all the bolts off and removed the cats in about an hour but couldn't have done it without this write up. Thank you!

I ordered these yesterday, but I have one question that is now concerning me. Do these HFC's meet the federal emissions standard or will I just have to take it to a shop that will pass me?

Awesome! Thanks.

Depends on your local smog laws. Everywhere is different. Most places are ok though.

Thanks for the DIY DDM...got my cat installed this morning in about 3 hours. Sounds incredibly good for stock exhaust, and pulls much harder. I am very happy with the results :)

Hmm, should I be worried by the fact that my mechanic installed this in 45 minutes? Though he used all the supplied bolts and gasket, there seems to be some rattle. :/

having no lift probably doubles the time for install, and if they used an impact wrench (not recommended near O2 sensors) I can believe 45 mins to an hour.

Now that I have installed a set and know how to make the frankentool, I think with a lift I could knock it out in 45 min. I wouldn't worry about it.