High performance cats

[malibuguy]

Originally Posted by yariSB86

Anyone know if something like this is worth it?
That picture on the summit site is accurate to what the high flow cat looks like.
magnaflow cat

Thats a stock replacement cat, 400cell per square inch core just like stock.

Stock cats vs. a single 100cell race cat on our cars is worth .1-.15 sec / .5-.75mph in the 1/4 mile...i just proved it yesterday

[yariSB86]

Thanks Malibu, canceled the order. It's not what I'm looking for.

[malibuguy]

no problem

its a common 'marketing' flaw with Magnaflow converters that they are all 'high flow' when they are not. They just starting making universal high flow 300cell per square inch about a year/1.5 ago. Which is a mild upgrade over stock, but not much & it will need to be welded in.

alot of new cars now even feature higher rated cores from the factory, with 600, 800, 1200 cpsi to which a "standard" 400cpsi core would then be considered "high flow". but in terms of our yaris, they use 400cpsi stock.

My shop we carry 100, 200 & 300cpsi higher flowing converters & i show people the difference & they are usually floored!

[cali yaris]

My shop we carry 100, 200 & 300cpsi higher flowing converters & i show people the difference & they are usually floored!

Especially when they floor it?

[malibuguy]

Yep! It was a semi-pun ;)

[TOLMACH]

Originally Posted by malibuguy

no problem

its a common 'marketing' flaw with Magnaflow converters that they are all 'high flow' when they are not. They just starting making universal high flow 300cell per square inch about a year/1.5 ago. Which is a mild upgrade over stock, but not much & it will need to be welded in.

alot of new cars now even feature higher rated cores from the factory, with 600, 800, 1200 cpsi to which a "standard" 400cpsi core would then be considered "high flow". but in terms of our yaris, they use 400cpsi stock.

My shop we carry 100, 200 & 300cpsi higher flowing converters & i show people the difference & they are usually floored!

I wish you were closer to BC canada ((((((((

[yariSB86]

So Malibu, if I went with a 100 cpsi at 4" diameter all connected with 2" pipping, would that work?

[tooter]

Originally Posted by TOLMACH

I wish you were closer to BC canada ((((((((

...and I wish that malibuguy was closer to Malibu.

[yariSB86]

My thought is to replace the first cat with one mentioned above, delete second cat and resonator. Have all connected with 2" pipping. Stopping where my axle back is.

[malibuguy]

That is exactly what I used to have on my car. You will also need to space out the rear o2 sensor or it will trip a p0420 code

[1.5]

I just had a custom 2.25" cat back built for wayy less than that and It gave me great noticeable gains and I got to keep my cat

[nookandcrannycar]

Originally Posted by Kaotic Lazagna

But yeah, I guess CHP can pull over anyone they want...really up to the driver to fight the case if it really is wrong. I looked it up more...away from the vehicle code. The "unusual or excessive" part is left to interpretation of the officer, but in my GTI case, she admitted that her pulling me over had nothing to do with the noise/sound. Eh, whatever, it was in the past. Since then, I just stayed away from canister style mufflers and stuck with clam shell types with OEM (not for the car, just in general) looking style tips.

OMG, SMH, SMH. When I read the world 'unusual' from the statute on Cali Yaris' post #16 I thought -- OMG, what nanny state wording...only in CA, or NY, or maybe IL. What you uncovered is beyond the pale. Along this particular avenue of policy, IMO, nothing should be left open to interpretation by the officer. As long as it passes the emissions standards, noise (unless there is a concern about unsafe mounting) should be the only thing that matters. IMO, your officer's snooty response belies a lack of appreciation for how good she has it relative to other law enforcement officers. LEOs in many other states (who, IMO, often exhibit far more professionalism) will never have close to the salary, benefits, and pensions that many LEOs in California do.