jdmkid949

ok first to start off i got headers no name i think there jdm 4 in 1 with and es oval exhaust running with a b18c on an ek idk what too do about test pipe or high flow cat. i need something quiet but i want to still get the hp gains. i dont care about passing smog i got that worked out. also i live in a heavily cop area so quietness is key. any opinions or ideas???

98civdx

if you want it quiet than throw all that **** away.
and start over with good brand name parts. test pipes will make it loud and raspy.

jdmkid949

yaaa i hate raspy.. i love rice but not the screamers those kids get there cars smashed in my town

would a high flow cat like carsound make my car that much louder..

anyone out there have an es oval with a high flow cat ?

jdm_ekcivic

The gains from a high flow cat or test pipe really aren't worth it.

MHDesigns

X2
Believe it or not the original honda cat is not that restrictive and will work well for most applications.

i would just put a 30 dollar test pipe in there rather than an expensive new cat. just my .02

jdmkid949

yaaaa but wont my car open up a lot and not just sound like exhaust but scream?

yoontim23

I would go with a high flow cat.

Diller

Your better off with a cat. A stock one should flow well enough for your set up. If you need to have a hi flow, go with the magnaflow cat.

jdmkid949

okkk hi flow cat then.. hows the hp is it worth the 300 dollars?

98civdx

wait they smash the cars?

i havent heard anything about carsounds cats, but random tech does make a high flow cat and im pretty such its 50 state legal.
but everytime i have heard the es oval it sounds like a damn fart can.

its not worth the money, the power you get is hardly any for what you pay.

jdmkid949

meet a kid few weeks ago had a gsr swap cops pulled him over for exhaust popped the hood and was like nice engine ill call the tow truck.. car got impounded lucky he wasnt racing soo he was ok not my story though so idk if its true id hate too lose my car.. oc cops r starting to get smarter too knowing more about honda engines .. irvine is soo scary now cops know whats up down there

i have heard stories of kids getting rolled fat and cars being able to be smashed due too illegal stuff

98civdx

^^ pretty sure they only get smashed for street racing, they would most likly get only a ticket, for illegal crap or, get impounded, but smashed dont think so.
i know what you mean tho, i got pulled over in irvine for some bull **** and get a $450 speeding ticket, when i was only 8 over.
but they are teaching cops what to look for now,

trustdestruction

Magnaflow high flow cat. Only go with a test pipe if you have to.

On my car, I have a 2 year old magnaflow high flow cat that is breaking apart inside... must have scraped one too many speed bumps too hard. I'm also working on a turbo project. I'm pretty much forced to go with a test pipe or face spending $100 on a new cat every year or two. I would rather stick with a cat though.


A high flow cat will for the most part make your exhaust sound the same as it does with a stock cat.

P.S. They've done dyno testing on a 99-00 Civic Si with a high flow cat, stock cat, and test pipe. Test pipe only gained 1WHP over the high flow cat. High flow cat is more worth it, since you're not breaking the law and you won't be spewing as much carbon monoxide.

http://www.importtuner.com/features/...erter_removal/

da9_ej1

damn glad im in MO they hardly ever right exhaust tickets they use it more to just scare you out here. although i came prepared with a dot approved apexi exhaust cops were like uhhhhhhhhhhh lol

jdmkid949

ookk cool thanks for the help everyone.. if only cali didnt care about smog it would be nice

Luke G.

**** THE POLICE

98civdx

^^ i got pulled over bumpin that song a while back lol.
cops really dont like it.

jdmkid949

haha i thought all cops love that song nothing wrong with a little of nwa will your exhaust is screaming next too a cop

Luke G.

hahahahahaha i would just turn it up as he walks up to the window

98civdx

when he walked up i didnt turn it down and then he started screaming at me, other then the very loud verbal warning i got, no ticket

tercel95

You know I had a magnaflow cat on my old car and it imploded within a few months... So I doubt yours is a problem with the way you drive...

I have a Random Tech cat on my car and haven't had any problems over the last 75k...

Having a test pipe will make your car sound raspy... I'm not quite sure why you are worried about bang for the buck with a test pipe/cat though when you have a no name header on your car... No other bolt-on will improve performance better than a quality header...

trustdestruction

I understand that having a test pipe will make it a little raspy. You are not understanding that if I installed a test pipe it would be done reluctantly. The only reason I was considering getting one is because I suspected that the cat was only going to do it again if I purchase a new one.

I have a Megan Racing header. It's not the best, but it's not no-name either.

Also, i'm working on a turbo project. I also have a D-series. Header selection is limited. I am not buying a Bisimoto header for $1000+ to gain 10 WHP... especially when i'm doing a turbo project.

I never mentioned bang-for-the-buck. I'm not quite sure what you got that from.

98civdx

yea, for the most part if were cool they will just give us a warning, but sometimes your not so lucky, like when i got my front plate ticket.

just gotta keep your stuff legit, that way you can laugh at them when they wasted all that time to find noithing.

tercel95

Sorry I guess I could have elaborated more... I posted my experience of the magnaflow cat for you...

My references to raspiness and bang for the buck were for the OP...

GrenadaEG2

What about the over all torque curve on a cat vs. testpipe ? I know the test pipe gives you about +1hp at peak, but doesnt it also murder your mid range torque in the process ? I have never run a test pipe on an N/A car before.