high flow cat?

neon angel · Post by **neon angel** » Sun Jan 06, 2008 10:52 am

yes or no on a na car with ....

udp, cai mod, srt mid & rear section, srt f&r struts, srt rear sway bar and light weight redx is it worth it ?

Marthby · Post by **Marthby** » Sun Jan 06, 2008 1:42 pm

Call me a gay hippie but I say no. You gain maybe 1 hp and a CEL code (that'll rape your gas mileage) at the cost of damaging the environment even more than your car already is. Unless you REALLY want that 1 hp... then go ahead. And it depends on what you mean by light weight redux, is the car your daily driver?

My .02 cents

Post by **occasional demons** » Sun Jan 06, 2008 1:59 pm

Marthby wrote:Call me a gay hippie but I say no. You gain maybe 1 hp and a CEL code (that'll rape your gas mileage) at the cost of damaging the environment even more than your car already is. Unless you REALLY want that 1 hp... then go ahead. And it depends on what you mean by light weight redux, is the car your daily driver?

My .02 cents

^^^^^That would be no cat.
A quality high flow cat will pass emissions w/no trouble. But weather it's worth the cost is debatable unless you are replacing a defective unit. (which technically is the only "legal" option) then the $ is prolly not much more, maybe up to $50 depending on brand/quality. Smog legal HP is almost always expensive.

neon angel · Post by **neon angel** » Sun Jan 06, 2008 3:23 pm

well i was just wandering cuz is the srt cat the same as an sxt cat?

Wenuden · Post by **Wenuden** » Sun Jan 06, 2008 5:36 pm

I agree with the gay hippie about the cat. Plus, the srt is the same as the sxt, hence why the srt mid pipe bolts right up to your cat.

If you want max "flow" (velocity would be better), those 2 resonators and the srt rats nest rear section are a hinderance more than a help. Put the stock mid pipe back on and get a single left side exit w/ a fart can muffler.

INVUJerry · Post by **INVUJerry** » Mon Jan 07, 2008 9:24 pm

The srt-cat flows just a little bit more than a stock SXT cat.

own3d5974 · Post by **own3d5974** » Sat Jan 12, 2008 1:19 pm

dont listen to the hippies.....if you gut the cat or buy a long tube with no cat then just talk to me and i can hook you up with a 02 simulator (no cel, passes emissions, still runs normal, same mpg, and 100% illegal and no one will know ftw)

TN.Frank · Post by **TN.Frank** » Sat Jan 12, 2008 2:32 pm

own3d5974 wrote:dont listen to the hippies.....if you gut the cat or buy a long tube with no cat then just talk to me and i can hook you up with a 02 simulator (no cel, passes emissions, still runs normal, same mpg, and 100% illegal and no one will know ftw)

So is this something you just use instead of your downstream O2 to make the PCM think that everything is ok? How much do they cost, I'd like to get the Stainless OBX header and down tube and I really didn't want to have to splice the free flow cat that I've got into the down tube if I could help it, this sounds like it'd make it a lot easier to install the header.

own3d5974 · Post by **own3d5974** » Sat Jan 12, 2008 3:26 pm

TN.Frank wrote:
own3d5974 wrote:dont listen to the hippies.....if you gut the cat or buy a long tube with no cat then just talk to me and i can hook you up with a 02 simulator (no cel, passes emissions, still runs normal, same mpg, and 100% illegal and no one will know ftw)
So is this something you just use instead of your downstream O2 to make the PCM think that everything is ok? How much do they cost, I'd like to get the Stainless OBX header and down tube and I really didn't want to have to splice the free flow cat that I've got into the down tube if I could help it, this sounds like it'd make it a lot easier to install the header.

that right.... it sends a fake signal to the ecu....no splicing involved and the last time i picked one up from the guy i paid $52

TN.Frank · Post by **TN.Frank** » Sat Jan 12, 2008 6:14 pm

Now that's what I'm talking about. Ways to trick the ECM into doing what WE want it to do, not what it wants to do. Do you have a web site or e-mail, I may need to look into this a bit further.

kevo · Post by **kevo** » Sat Jan 12, 2008 6:28 pm

invujerry wrote:The srt-cat flows just a little bit more than a stock SXT cat.

I have two cats that came off of an srt here. They are exactly the same as the normal neon cats.

infil · Post by **infil** » Sun Jan 13, 2008 3:06 am

i've mentioned it once or twice i think, i ran quicker WITH a cat than without one.

A cat is developed around being no more than 10% of total exhaust system backpressure. IMO there are 2 reasons to pull a cat. Turbocharging or alot of time spent on a 2step/ignition interrupt that dumps alot of raw fuel into the exhaust which will melt a cat down. I'd be running one on the racecar for exhausted events if i didn't melt em down in about 8 runs.

own3d5974 · Post by **own3d5974** » Sun Jan 13, 2008 4:09 pm

TN.Frank wrote:Now that's what I'm talking about. Ways to trick the ECM into doing what WE want it to do, not what it wants to do. Do you have a web site or e-mail, I may need to look into this a bit further.

well the guy that i get them from works for a porche performance center in maryland so i will talk to him tommorow and see if i can get a link so you can read a little more about them

http://www.voodooboost.com/performance_ ... Simulator/

this is another product you could use..... it pulls the o2 sensor farther back so it reads less

and this is another one that you have to splice in

http://www.titanmotorsports.com/pe02si.html

TN.Frank · Post by **TN.Frank** » Sun Jan 13, 2008 4:32 pm

The Perrin O2 Simulator sounds like a good way to go. For $54 bucks and no CEL I think that's the what I'll do when I get around to installing the OBX header. Looks pretty simple to wire in too. Thanks.

INVUJerry · Post by **INVUJerry** » Sun Jan 13, 2008 6:38 pm

Erick! I met someone you might know! A guy named Seth, drives a newer black mustang. Pretty quiet guy.

own3d5974 · Post by **own3d5974** » Mon Jan 14, 2008 8:26 pm

invujerry wrote:Erick! I met someone you might know! A guy named Seth, drives a newer black mustang. Pretty quiet guy.

yea they ride through savage everyday at 6k in first gear thinking there cool......... yea he lives like 2 streets down from me, were did you meet him at

INVUJerry · Post by **INVUJerry** » Mon Jan 14, 2008 8:31 pm

kevo wrote:
invujerry wrote:The srt-cat flows just a little bit more than a stock SXT cat.
I have two cats that came off of an srt here. They are exactly the same as the normal neon cats.

They LOOK the same, but the catalyst materials are completely different. Atleast ACRMan on here and neons.org says they are different, and he works for dodge.

own3d5974 wrote:
invujerry wrote:Erick! I met someone you might know! A guy named Seth, drives a newer black mustang. Pretty quiet guy.
yea they ride through savage everyday at 6k in first gear thinking there cool......... yea he lives like 2 streets down from me, were did you meet him at

I work with him now lol. He seems like that kind of guy, when he leaves the parking lot and drives to the redlight he just winds out first and lets it go down.