hi flow cats

[drew9781vuss]

any one have any they dont need and whats a rough price

[doleboy]

hear about these a lot in usa.
www.thunderracing.com/catalog/?action=categories&pcid=8

my cats came with the wortec exhaust system though. maybe monkfish have some. alternatively try rapid-gg.

[MyM8V8]

drew9781vuss said:

any one have any they dont need and whats a rough price

Why do you want them mate. You can't save the world on your own?

[donk r8]

Just had mine cut out on the ute, don't need them, no C0 figure on the V5.............

[doleboy]

donk r8 said:

Just had mine cut out on the ute, don't need them, no C0 figure on the V5.............

if the polar ice cap in frensham ponds melts, we'll know who to blame

[donk r8]

doleboy said:

donk r8 said:

Just had mine cut out on the ute, don't need them, no C0 figure on the V5.............

if the polar ice cap in frensham ponds melts, we'll know who to blame

it froze over a couple of weeks ago, trying to melt it!!!!!!!!!!!!...........

[drew9781vuss]

donk u dont really need the cats in by the looks of it only for emission control is that right if there out does the ecu need a remaap for the change

[donk r8]

drew9781vuss said:

donk u dont really need the cats in by the looks of it only for emission control is that right if there out does the ecu need a remaap for the change

Well just driven it back from my garage mate and all is good, one of the cats had come apart inside so it now flows better and pulls much better. The sensors are in front of the cats so no problem there. I used my r8 OE exhaust with a few mods, using just one silencer, little bit of finishing to do when I get a bit more pipe and a couple of tips. It does sound like the dogs donuts!!!!!!

It might be worth having it tuned/remapped sometime....................Chris.

[drew9781vuss]

donk r8 said:

drew9781vuss said:

donk u dont really need the cats in by the looks of it only for emission control is that right if there out does the ecu need a remaap for the change

Well just driven it back from my garage mate and all is good, one of the cats had come apart inside so it now flows better and pulls much better. The sensors are in front of the cats so no problem there. I used my r8 OE exhaust with a few mods, using just one silencer, little bit of finishing to do when I get a bit more pipe and a couple of tips. It does sound like the dogs donuts!!!!!!

It might be worth having it tuned/remapped sometime....................Chris.

thanks for that its just im makin a stainless system have access to the the gear and pipe at work so i thought i may as well just not to up with it on that side of it thats all little clearer now what size pipe did u use

[donk r8]

drew9781vuss said:

donk r8 said:

drew9781vuss said:

donk u dont really need the cats in by the looks of it only for emission control is that right if there out does the ecu need a remaap for the change

Well just driven it back from my garage mate and all is good, one of the cats had come apart inside so it now flows better and pulls much better. The sensors are in front of the cats so no problem there. I used my r8 OE exhaust with a few mods, using just one silencer, little bit of finishing to do when I get a bit more pipe and a couple of tips. It does sound like the dogs donuts!!!!!!

It might be worth having it tuned/remapped sometime....................Chris.

thanks for that its just im makin a stainless system have access to the the gear and pipe at work so i thought i may as well just not to up with it on that side of it thats all little clearer now what size pipe did u use

The old r8 system was 2.5" stainless......................I have not changed the headers so no point going to 3".

[drew9781vuss]

donk r8 said:

drew9781vuss said:

donk r8 said:

drew9781vuss said:

donk u dont really need the cats in by the looks of it only for emission control is that right if there out does the ecu need a remaap for the change

Well just driven it back from my garage mate and all is good, one of the cats had come apart inside so it now flows better and pulls much better. The sensors are in front of the cats so no problem there. I used my r8 OE exhaust with a few mods, using just one silencer, little bit of finishing to do when I get a bit more pipe and a couple of tips. It does sound like the dogs donuts!!!!!!

It might be worth having it tuned/remapped sometime....................Chris.

thanks for that its just im makin a stainless system have access to the the gear and pipe at work so i thought i may as well just not to up with it on that side of it thats all little clearer now what size pipe did u use

ahh no worries so u came out of the headers both pipes into one muffler and out the back or did u put a back box on it thanks for the info mate


The old r8 system was 2.5" stainless......................I have not changed the headers so no point going to 3".

[ads_green]

surprised it didn't trip the MIL light as there usually is a post cat O2 sensor and if the difference isn't enough then it registers a fault code.

easy to get round this using a resistor bssed MIL eliminator that simulates the voltage drop.

also there is no law requiring a cat to be fitted - however trying to pass MOT hydrocarbon emmissions is pretty much impossible without one (it can be done but usually requires some very careful tuning).

[drew9781vuss]

ads_green said:

surprised it didn't trip the MIL light as there usually is a post cat O2 sensor and if the difference isn't enough then it registers a fault code.

easy to get round this using a resistor bssed MIL eliminator that simulates the voltage drop.

also there is no law requiring a cat to be fitted - however trying to pass MOT hydrocarbon emmissions is pretty much impossible without one (it can be done but usually requires some very careful tuning).

yeah the only thing i have goin over her is they dont worry about the co2 gasses as its taxed as a commercial whats the mil light

[Magic919]

ads_green said:

also there is no law requiring a cat to be fitted - however trying to pass MOT hydrocarbon emissions is pretty much impossible without one (it can be done but usually requires some very careful tuning).

Ute.

[stigmundfreud]

drew9781vuss said:

any one have any they dont need and whats a rough price

I have two virtually unused Miltek ones sitting here that can go to a good home

[donk r8]

ads_green said:

surprised it didn't trip the MIL light as there usually is a post cat O2 sensor and if the difference isn't enough then it registers a fault code.

easy to get round this using a resistor bssed MIL eliminator that simulates the voltage drop.

also there is no law requiring a cat to be fitted - however trying to pass MOT hydrocarbon emmissions is pretty much impossible without one (it can be done but usually requires some very careful tuning).

No post 02 sensor on mine.................

[ringram]

Did that sort out your economy as well Chris?

[donk r8]

ringram said:

Did that sort out your economy as well Chris?

I will find out soon, one of the cats was completly broken up inside so must of been blocking airflow......

[ads_green]

ah - didn't see ute.

drew9781vuss said:

whats the mil light

Malfunction Indicator Lamp AKA the check engine light.

[drew9781vuss]

stigmundfreud said:

drew9781vuss said:

any one have any they dont need and whats a rough price

I have two virtually unused Miltek ones sitting here that can go to a good home

what are they worth stig