Jump to content
SAU Community

High Flow Cats

Riccardo
 Share

Recommended Posts

Riccardo Rookie

Riccardo

Posted
Posted

Hey all, was hoping you guys could help me out with this one. I'm looking at purchasing a pair high flows cats, i have a 2003 nm35 stagea and pretty much all the parts im looking at, at the moment are for the infinity g35 and nissan 350z, im currently hooked on purchasing one from z1 motorsports and purching thier z1 highflow cats for the g35 de model, now all i need too know is if the catalytic converters are the same on the g35 and my stagea. if so i know it will fit, ive already looked a ton and from what i can see they look identical but just need too make sure before i go through with purchasing something from overseas which is pricey. i couldnt manage too find anything local as of yet hence why purchasing online and was going too get it custom done but the guy didnt look too keen on doing it and quoted me far more then i could afford soo only got everything from the mid pipe back done. but if any of you know any high flow cats which are a perfect fitment and/or if the g35 runs the exact same cats as the stagea would be a great help.thanks!

Link to comment
https://www.sau.com.au/forums/topic/476280-high-flow-cats/
Share on other sites
admS15 Grand Master

admS15

Posted
Posted

2003 nm35, is it a vq25det? If yes, the cat is built into the dump pipe on the back of the turbo. Very few aftermarket options. Scotty's customs used to make his own, not sure if he still does it. Am performance in SA is another one.

 

Pnm35 is a vq35 and the cats you are talking about in your original post may fit.

Link to comment
https://www.sau.com.au/forums/topic/476280-high-flow-cats/#findComment-7900300
Share on other sites
Riccardo Rookie

Riccardo

Posted
  • Author
Posted
5 hours ago, GTSBoy said:

Buying cats "that fit" is not the only way to do it.

The only way I have ever done it is to buy the cat I want, without flanges, then weld the flanges to suit the car.

Yea I know of that way of doing it but I can't weld nor own one, and would need too take it somewhere and pay for that as well, just looking for something with direct fit so can do myself. if nothing then will have too go with getting it custom done or like you said. 

Link to comment
https://www.sau.com.au/forums/topic/476280-high-flow-cats/#findComment-7900303
Share on other sites
Riccardo Rookie

Riccardo

Posted
  • Author
Posted
2 hours ago, admS15 said:

2003 nm35, is it a vq25det? If yes, the cat is built into the dump pipe on the back of the turbo. Very few aftermarket options. Scotty's customs used to make his own, not sure if he still does it. Am performance in SA is another one.

 

Pnm35 is a vq35 and the cats you are talking about in your original post may fit.

No it's the vq25dd should of mentioned that too sorry, no turbo and I do believe I have the same manifold as the pnm35 and infinity g35, all run the same manifold I'm sure from photos. correct me if I'm wrong, soo that's believing me too think their cats are the same too, they look almost identical besides the fact they have o2 sensors in them. Just from the videos of installs I've watched its like as if it's longer in length then mine, but will do more research. Thanks heaps

Link to comment
https://www.sau.com.au/forums/topic/476280-high-flow-cats/#findComment-7900304
Share on other sites
admS15 Grand Master

admS15

Posted
Posted

Ok, i see. Next question is why you would want to get high flow cats for a vq25dd? They are unlikely to make a big noticeable difference. High $ for low gain. Doesn't really make much sense to me.

 

Personally i would leave the stock ones in there.

 

 

Link to comment
https://www.sau.com.au/forums/topic/476280-high-flow-cats/#findComment-7900306
Share on other sites
Riccardo Rookie

Riccardo

Posted
  • Author
Posted

Honestly it's just the car I have haha and it's become a little project too me I understand there not much gain in it, I just wanna get a bit more power out of it anywhere I can and also my stock cats are making a very weird sound and looked almost cracked and rusted down there. Also want too change the tone coming out of my exhaust as I just got a custom exhaust from the mid pipe back done, and it's got a very deep low tone at about 2000 - 3500 rpm if I explained that correctly haha soo was hoping new free flow cats could change that tone possibly. I'm still learning. And oem cats I heard are pricey soo thought. Might as well upgrade if possible

Link to comment
https://www.sau.com.au/forums/topic/476280-high-flow-cats/#findComment-7900308
Share on other sites
KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

OK still cheaper to buy from Venom than from the States. Or just take them off, knock the guts out of them and put them back. And to change the tone get a resonator and put it in the middle of the exhaust.

Or for more power buy this:

https://www.trademe.co.nz/motors/car-parts-accessories/nissan/engines/listing-1978090441.htm?rsqid=f103349f7adf4ca483c59d5837e3cbe4

Link to comment
https://www.sau.com.au/forums/topic/476280-high-flow-cats/#findComment-7900310
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • jez NF
      The Evolution Of "night Fury"

      By jez NF · Posted

      Mixing things up - installed some leather recaros to match the leather seat covered rear seats. Interior looks pretty schmick now except for some slight wear on the steering wheel which I will monitor and address if it becomes worse or actually noticeable!  
    • Predator1
      Tomei gasket

      By Predator1 · Posted

      Didnt realise RB's had more then 1 head.
    • MBS206
      Unpeeling the Orange

      By MBS206 · Posted

      I'm normally copping my own abuse from neglecting my daily drivers. "Those suspension bushes will last a bit more", "Don't worry about the oil leak, just keep topping it up". The project cars I'm always doing things slowly on them as I'm wanting them to be done better, and neater, and nicer. Luckily I don't have to deal with 18 year old Matt's "Learning to wire" stuff in the project cars. And there's only one piece of wiring I'm displeased about in the Landcruiser, and it's about to be cut out... However, the box loads of parts that have been going through this place lately for the Landcruiser... Brake pads Brake Rotors Full handbrake overhaul Wheel Bearings Seals Swivel hubs Steering Boxes Half the suspension joints Shocks Air bags (Ones to go in the rear springs for towing) Water pump Timing kit Lower timing case Harmonic Balancer Radiator Lots of other little seals and shits Gas struts for the bonnet New power window switches And god knows what else I've forgotten... Ha ha ha I have my fingers crossed the pinion seals don't start leaking on the diffs, that the transfer case doesn't leak, and the gearbox input shaft doesn't leak, nor the rear main seal. As they're about the only seals I haven't replaced in the driveline! I'm seriously eyeing off buying new caliper rebuild kits front and rear brake calipers... I'll probably recheck all the valve clearances soon too, and hopefully, it should be all good and sweet to haul some long distance trips again!
    • GTSBoy
      Unpeeling the Orange

      By GTSBoy · Posted

      Every time I pull my 3x gauges out of the console and see the crack-addict way that I did the wiring, and I just can't bring myself to tear it all apart and "make it nice", because it is currently working. In fact, the last time I was in there I probably made it worse.
    • Kinkstaah
      Unpeeling the Orange

      By Kinkstaah · Posted

      The best part is when you own the car long enough that you look back and find your OWN ham fisted amateur shit!
×
×
  • Create New...