sometimes I doubt whether the aftermarket cats actually include all the precious metals. rhodium in particular is probably the most expensive metal in the world right now . one of these days i should take a sample of the cats and throw it on the energy dispersive x-ray machine (uses x-rays to do chemical identification) and see what they really put on there.

I've also developed a really awesome catalyst that can be made cheap, works for a lot of stuff and doesn't use any precious metals

 

So when you're putting the O2 sensors back on the HFC's do you use anything on the threads like anti-sieze compound?

 

You certainly can, but I would be a little cautious with it and not use too much.

The sensors are really sensitive and can easily be fouled by just about any contaminant other than exhaust fumes.

 

It sure is.


BTW are you getting your catalyst patented? If it can substitute the precious metals, it'll make you a millionaire (billionaire) overnight!

GOOD LUCK WITH IT!

 

lol
about the O2 sensour , can i use the old ones or should i get new ?

 

Keep the old ones unless you can somehow verify their condition.

 

update
i jacked my Z ,from what i see its hard to remove the cats but it doable installing the HFC alon thats what i`m wondering HOW ?(HOLDING AND BOLTING ON ,WITH LOW SPACE OF JACK STANDS)
i socked the bolts with WD40 waiting to start tomorrow .

 

Let us know how it goes. I'm gettong ready to install my Fast Intentions HFC's - my 3 yr. Nissan warranty just ran out.

 

socking the bolts worked fine ,bolts are off no problems (reaching them is PITA)
go for it dude its fun to do it your self , get the tools and you`ll do fine

 

check out my thread :
https://my350z.com/forum/showthread....47#post5755647

should i install the HFC first or start with the exhaust ??

 

Install everything losely first.
Then start tightening everything down tightly starting from the cats back.

 

thank you man ,,,always a great idea`s n help ,keep them coming

 

update : (sorry the pics are sooo bad by mobile )
i installed the APS 2.5" ,no problems except in removing and installing the muffler ,if you have a Friend to help you it would be faster and easier ,if not do as i did :
<a href="http://s273.photobucket.com/albums/jj206/Darkness1975/?action=view&current=installingtheAPS.jpg" target="_blank"><img src="http://i273.photobucket.com/albums/jj206/Darkness1975/installingtheAPS.jpg" border="0" alt="Photobucket"></a>
<a href="http://s273.photobucket.com/albums/jj206/Darkness1975/?action=view&current=installingtheAPS2.jpg" target="_blank"><img src="http://i273.photobucket.com/albums/jj206/Darkness1975/installingtheAPS2.jpg" border="0" alt="Photobucket"></a>
i jacked them
so i just need to do some adjustment and a sound clip will be ready tomorrow yeah ,,,(and a dayno if i got the time)
<a href="http://s273.photobucket.com/albums/jj206/Darkness1975/?action=view&current=APS25-muffler-installed.jpg" target="_blank"><img src="http://i273.photobucket.com/albums/jj206/Darkness1975/APS25-muffler-installed.jpg" border="0" alt="Photobucket"></a>
<a href="http://s273.photobucket.com/albums/jj206/Darkness1975/?action=view&current=APS25-muffler-installed2.jpg" target="_blank"><img src="http://i273.photobucket.com/albums/jj206/Darkness1975/APS25-muffler-installed2.jpg" border="0" alt="Photobucket"></a>

 

Help guys :
i installed the exhaust the sound is so dame beautiful ,,,deep no rasp in WOT and quit in IDLE

only one thing i need help with >> the tips are not in-line :
<a href="http://s273.photobucket.com/albums/jj206/Darkness1975/?action=view&current=tipesnotcorrect.jpg" target="_blank"><img src="http://i273.photobucket.com/albums/jj206/Darkness1975/tipesnotcorrect.jpg" border="0" alt="Photobucket"></a>
this is the right tip :
<a href="http://s273.photobucket.com/albums/jj206/Darkness1975/?action=view&current=lefttip.jpg" target="_blank"><img src="http://i273.photobucket.com/albums/jj206/Darkness1975/lefttip.jpg" border="0" alt="Photobucket"></a>
left tip :
<a href="http://s273.photobucket.com/albums/jj206/Darkness1975/?action=view&current=righttip.jpg" target="_blank"><img src="http://i273.photobucket.com/albums/jj206/Darkness1975/righttip.jpg" border="0" alt="Photobucket"></a>

any idea`s other than removing the muff and adjusting the hangers

sound clip tonight ,,dayno tomorrow

 

I can see the muffler is also slanted.

Remove and adjust may be the only way to fix it.

 

video clip
https://my350z.com/forum/showthread....50#post5788250

thanx to all your help :P