catalytic converters

i wuldnt have flipped him off i wulda kissed his feet

 

i have tested my vn with standard cat, high flow and gutted out cat and on the qtr mile and 0-100 a gutted cat did better than any cat. If u want to risk getting caught just gut ur cat. Leave the outer shell of the cat on ur exhaust so if a cop looks under ur cars he will still see u have a cat there.

 

It takes the cops only a few seconds to be able to test to see if the cat has been gutted or not. All it takes is one of those little point and click thermometers that Jaycar sell for about $20.

If it's working there is a big temerature change across the cat, if it's empty (or even with a pipe in it) there is little to no temperature drop.

And the smell is a fairly dead give away.

 

hahahaa good work

 

as if you condone that man... Why do ppl have to be like that to police? They are doing their jobs and remember they are around to protect people...in most situations they are our friends, not enemies.

But i bet he felt like a real big man sticking a finger up driving away while the cop probly had his back turned...

Its things like that that put cops in bad moods so that the next poor p plater they pull over gets a major defect because they are looking to get back at 'p platers' that do that sorta thing...however this goes for all people not just p platers

 

have to say i agree with all of ya there it's people like you that give all drivers like us a bad name ya want to flipem the finger do it to their face not there backs some of my best mates are cops and thats plain disrespect and to be honest cowardly

 

back to the question earlier, how are 2 standard cats more effective, and how are they installed, ie. same pipe or twin set up??

 

yeah i wouldnt bother gutting it, a straight through peice of pipe works much better.

 

Has anybody noticed this thread is 3 years old?

 

yeah the dig was pointless, but now we have a genuine question:

in series would not increase flow, you'd have them parallel for it to work.


is there an easy way to tell if your cats are blocked?

 

undo the cat bolts drop the front of the cat back and start it if its flowing all right ya know otherwise pull the cat out and hold it up to a light you will be able to tell if its blocked or not

 

i did that to the cat that came on mine. held it up and i could tell easily it wasnt blocked. i did see a pipe welded through it though. dodgy previous owners haha

 

thats not so stupid up the flow and keep part cat i wonder if that would fool the cops lol

 

yeah until they do a proper check. luckily i have twin cats on both cars so i can swap stuff around

 

i remove them but only on race cars so i have a nice stock pile of new and old in fact i have a fresh one sitting in my boot now lol

 

theres a clear difference, most obvious is the smell it actualy smells like fumes and as said the temp difference of the cat shell is massive

 

im not sure if iv been lucky or what but iv never even had a copper ask me to pop my bonnet... let alone jump under my car with temperature testing devices