Jump to content
SAU Community

3" (BOLT-ON ALSO), 3.5" and 4" CATCO HI-FLOW CATs (stainless steel inside)


Recommended Posts

Hi guys,

A new CATCO CAT is out in the market, and this one is 304SUS (surgical stainless steel) outside, and unlike the other high flow CATs which have a ceramic honeycomb inside, this has a stainless steel honeycomb which has 200 holes per sq inch instead of 400 holes per sq inch, which basically means the holes are twice the size of the other Hi-flow CATs. It is now the highest flowing CAT on the market, which would cost in excess of $600-800 at exhaust shops.

The CAT is available in 3", 3.5" or 4" piping. The actual round body of the CAT is 5".

The CAT has been conveniently made as a 3" bolt on for R32 & R33 GTST/GTR, 180SX, Pulsar GTiR, R34 GTT & S14/S15 200SX) = $440

$410 for 3" Universal

$470 for 3.5" Universal

$480 for 4" Universal

cheers,

Michael

Edited by BATMBL
  • 2 weeks later...

the testing has been done!

CAR: 1990 R32 GTST Type M

Specs: 3.5" cat-back exhaust, everything else STOCK (even stock air filter and boost!)

Plugs were changed to NGK coppers (heat range 6).

Results:

148kwrw - standard dump/front pipe and standard CAT (not compliance CAT, the factory nissan CAT)

standard dump/front pipe and the new Hi-flow CAT with stainless steel inside - 158kwrw. INCREASE of 10rwkw!! ...as the hp would increase on a car, so would an even bigger increase in hp compared to standard CAT and this new CAT.

split dump/front pipe and standard CAT - 164kwrw. INCREASE of 16kwrw!

open/bell mouth dump/front pipe and standard CAT - 156kwrw. INCREASE of 8kwrw!

new split dump front pipe and the new Hi-flow CAT with stainless steel inside - 175rwkw. INCREASE of 27kwrw!!! thats more increase than a 3" CAT back exhaust- usually about 20rwkw.

hope this clears a few things up about the need for a 3" hi-flow CAT and the difference between bell/open mouth and split dumps.

dont have a scanner yet, but when i can post the sheets up, i will!

cheers,

Michael

  • 1 month later...
  • 1 month later...
  • 3 weeks later...

we did some independant testing on 3 cats last week and here are the results.

FLOW RATES IN CFM:

3" CATCO CAT (has 5" body, 200csi steel inside) = 706CFM

3" METAL CAT (has 4" body, 200csi steel inside)=629CFM

3" MAGIC CAT, we welded cone reducers and 3" piping (has 4" body, 300csi steel inisde)=540CFM

The flow test on the 3.5" piping CATCO CAT showed a flow of 885CFM & for the 4" piping CATCO CAT it was 1015CFM!

as you can see, the catco cat has the most flow and cannot be compared. one thing we didnt test was the CFM of a straight through 3" pipe, but from memory its about 1000CFM(??)

cheers,

Michael

Edited by BATMBL
  • 1 month later...

i personally would never stock them, you can ask justjap how many returns they get... the worst cat in the market.

the stainless steel will turn purple within the first few hours of driving (meaning the steel cant handle the heat since its really thin, and from this the biscuits will start moving because the steel flexes from the heat and then you get ratling etc...). the cat doesnt flow well at all due to the poor design and cheap biscuits inside. overall, its a cheap china made "cat" which doesnt have any EPA and/or CARBs emission approvals.

xforce is all about a low price, but essentially theres no quality.

  • 3 weeks later...

Hi BATMBL

Can you tell me the length of the 3" CAT for the R33? ($190 one)

I took mine off to replace with a cheapy i bought, but the cheapy is too long. I think it will be going back.

My current one which is a Catco but looks to be maybe a 2.5" is 318mm long. Does that sound right?

Thanks..Birnie

hi birnie

i dont have one with me right now, but that does sound about right. any of the 3 cats you can buy bolt on for the r33 are the same length flange to flange and angled correctly, its just the smaller one has 3" piping coming out of it, where as the large body doesnt get to have the 3" piping come out of the cat, but the flanges are welded right at the ends of the cat, where the 3" piping would have started.

the bolt on cats i have for r33 are a direct fit from the standard cats, and ive never had a problem with fitment after selling many of them. the same bolt on cat will also fit r32 skyline and pulsar gtir and 180sx/s13 silvia.

cheers

hey mate do you have the new pipes with the plug on the other side of the dump yet?? when you get the new ones in the stainless let me know.

very keen to get the r33 gtst combo that i pm you about

thanks mate

  • 2 weeks later...

Michael,

Are the prices the same for forum members as they are for anyone who finds the web site to buy one of these cats ? Web site shows same price ( $440 ) Also, are they the same price for the SAU Car Club members ?

Cheers.

hi

the website was made to reflect the prices i have on the forums, so thats why its the same. i will provide free shipping for the $440 cat for SAU members only.

cheers

  • 4 weeks later...


  • Similar Content

  • Latest Posts

    • i will be there 😁
    • Hello!  i just finished manual swaping my r34 skyline with a r33 rb20de box(RB71C)box  When the car is running it squeaks crazy loud and it was smoking from the gearbox area. The gearbox is fine it was tested. The clutch slave cylinder seems like it doesn't fully releases the clutch. I want to ask if this noise is from the throw out bearing or could it be the clutch assembly or disk att.xFliq87Gzw6kImKBVqDebXkj0fBqymk0JaYeP3_3SlM.mp4
    • A few small updates since the previous post and lessons. I decided to do a little interior light upgrade on the 110. I quite like the iilumo items, even if they're a bit of a premium over other brands. You'll also note the Stedi Fogs, that will go into the S15 fog lights as I needed to match the bulbs since I got the new ones earlier. I hope they fit as the body is quite a bit longer than your normal bulb.  Annoyingly, I managed to trip the fuse, which normally wouldn't be an issue until I located the fuse. I can't say I've ever come across this. I had lucked out that someone nearby had a spare, but oddly enough Toyota dealerships seem to keep this in stock. I ordered some to keep in my stash and as luck would have it, someone else nearby tripped the same fuse so I passed on the favour.  I also did a little service on the 110 ahead of some additional work coming up. It's been annoying that Goleby's stopped carrying this particular HKS filter for the 110, so now I need to keep them on order from Japan. I also took the opportunity to install a bash plate and number plate riser. The plate riser is such a cheap but nice fix to help really tidy up the car. I'm tempted to now also replace my headlights, on this car. Both items were from Project Aero.    I also needed to replace the rear tyres on the 110, and after trying to get it aligned learnt that I need to replace some bushes in the front end, so that's next.  Closing out this update with a nicer picture as always! 
    • Yeah mate, never miss it.
    • Any going to watch World Time Attack at SMSP this year?
×
×
  • Create New...