Ams catted downpipes ?

[bigfra]

Just want to check that you will definitely not get engine warning light with the catted downpipes? I take it performance increase wise the difference between catted and non catted is negligible? Thanks

[Tom C]

I have over 1k miles on my AMS catted downpipes with no codes or issues (knock on wood). I am sure the catless downpipes make more power, I just don't know how much more.

[boots]

There are reports of guys w ams catted who did receive a dt mal loss of power

[bigfra]

Originally Posted by boots

There are reports of guys w ams catted who did receive a dt mal loss of power

Hmmm interesting! Seems strange I suppose. Maybe just go for the non catted and deal with the engine management light?

[bigfra]

Originally Posted by Tom C

I have over 1k miles on my AMS catted downpipes with no codes or issues (knock on wood). I am sure the catless downpipes make more power, I just don't know how much more.

Have you noticed a dip in power mate?

[ImpetuousRacer]

Have Agency Power (Same Exact Cat as AMS, but better O2 Location), no engine light or issues. I have 2013.

[bigfra]

Originally Posted by ImpetuousRacer

Have Agency Power (Same Exact Cat as AMS, but better O2 Location), no engine light or issues. I have 2013.

Cool, so agency power are better? I had thought about supersprint but they ain't the cheapest.

[ImpetuousRacer]

Agency Power and AMS both use identical catalytic converter, so there is no difference in that aspect. Agency Power has stock location for the O2, where AMS you have to unclip and stretch the O2 sensor to barely make it fit, or buy extended O2 wires.

Agency Power offers same performance, easier install with better O2 location, and has a better price point. Was a no brainer for me. Talk to James at Vivid Racing, he will give you a deal.

Only other difference is AMS uses stock type bracket for flex, where Agency Power uses a flex pipe in theirs. Both should do the same job.

As far as quality, welds, construction, etc. Agency Power is made in USA and their production was on par with AMS.

Also, AMS now provides new stock OEM donut gaskets with theirs, Agency Power doesnt, but you're talking $30 or so.


The supersprint are even higher flow with a better catalytic converter with more platinum from my understanding, but you pay almost double the price. Not sure if you'll get double the gains.

Just my 2 cents.

[bigfra]

Originally Posted by ImpetuousRacer

Agency Power and AMS both use identical catalytic converter, so there is no difference in that aspect. Agency Power has stock location for the O2, where AMS you have to unclip and stretch the O2 sensor to barely make it fit, or buy extended O2 wires.

Agency Power offers same performance, easier install with better O2 location, and has a better price point. Was a no brainer for me. Talk to James at Vivid Racing, he will give you a deal.

Only other difference is AMS uses stock type bracket for flex, where Agency Power uses a flex pipe in theirs. Both should do the same job.

As far as quality, welds, construction, etc. Agency Power is made in USA and their production was on par with AMS.

Also, AMS now provides new stock OEM donut gaskets with theirs, Agency Power doesnt, but you're talking $30 or so.


The supersprint are even higher flow with a better catalytic converter with more platinum from my understanding, but you pay almost double the price. Not sure if you'll get double the gains.

Just my 2 cents.

Thanks for the info mate, I'll have a look in to shipping costs.

[Tom C]

Originally Posted by ImpetuousRacer

Agency Power and AMS both use identical catalytic converter, so there is no difference in that aspect. Agency Power has stock location for the O2, where AMS you have to unclip and stretch the O2 sensor to barely make it fit, or buy extended O2 wires.

Agency Power offers same performance, easier install with better O2 location, and has a better price point. Was a no brainer for me. Talk to James at Vivid Racing, he will give you a deal.

Only other difference is AMS uses stock type bracket for flex, where Agency Power uses a flex pipe in theirs. Both should do the same job.

As far as quality, welds, construction, etc. Agency Power is made in USA and their production was on par with AMS.

Also, AMS now provides new stock OEM donut gaskets with theirs, Agency Power doesnt, but you're talking $30 or so.


The supersprint are even higher flow with a better catalytic converter with more platinum from my understanding, but you pay almost double the price. Not sure if you'll get double the gains.

Just my 2 cents.

I bought a set of the Agency Power catted and had problems with the install. The flex pipe was not helpful on the install as it needed constant tension. The flange would not line up after two 45 minute attempts at it. I had to send them back and got the AMS ones instead. I bought Bosch extended O2 sensors based on recommendations from other members here. The AMS went in VERY easy and no rattling because the tech knew how to seat them correctly.

[ImpetuousRacer]

Originally Posted by Tom C

I bought a set of the Agency Power catted and had problems with the install. The flex pipe was not helpful on the install as it needed constant tension. The flange would not line up after two 45 minute attempts at it. I had to send them back and got the AMS ones instead. I bought Bosch extended O2 sensors based on recommendations from other members here. The AMS went in VERY easy and no rattling because the tech knew how to seat them correctly.

Sorry to hear that.
I had Vivid Racing do the install, apparently no problems.

[boots]

I don't know how everyone w downpipes drives but, those who did receive a dt mal was either stomping on the gas to get up to or above 120 or doing the slow creep mode to get there. Perhaps those who haven't gotten the light yet is the exception so that's good for them.

[Tom C]

Originally Posted by boots

I don't know how everyone w downpipes drives but, those who did receive a dt mal was either stomping on the gas to get up to or above 120 or doing the slow creep mode to get there. Perhaps those who haven't gotten the light yet is the exception so that's good for them.

I haven't gotten the the dt mal light (knock on wood) during a high speed run and I have run many times up to 140mph (on a private road or drag strip of course).

[boots]

That's good that u didn't get a light. Wish it were across the board

[boots]

Pert your no fun lol

[Tom C]

Originally Posted by Pertplus

Aaaaaaaaannndd at 6500 miles I got a CEL!! Lol. I cursed myself!

AMS catted? Did you also change the O2 sensors to the extended Bosch ones?

[Tom C]

Originally Posted by Pertplus

AMS catted. I don't think I did the Bosch sensors. I just had Alex @ Alpine code it out. What was weird is that it happened at the same time my trip mileage estimator showed me to have a 270 mile range even though I had a full tank of gas. Usually with a full tank of gas it says I have a range of 320+ miles. Very strange.

And the CEL happened when I turned the car on in the morning. Not even during rough driving. I've probably maxed this car out at 120MPH and never had an issue once.

Are you sure it wasn't gas cap related? Did you read the codes?

[boots]

Originally Posted by Pertplus

Aaaaaaaaannndd at 6500 miles I got a CEL!! Lol. I cursed myself!

Welcome to the Cel Club Bro! You just couldn't stay away.

[ddrreeww]

also hav CEL after 5000km

mine is AMS catted.

[boots]

See folks thought I was krazea. This is the latest and greatest club to join and there is no admission fee. What do you get in return. Smiles from the sound. Mid range punch, crazy azz up/downshifts and pissed off neighbors.

[bigfra]

Ahhhh fuck u guys, I'm confused an drunk !! What do I do

[boots]

You buy a set roll down the window floor it and hear the lovely music they out out.