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View Full Version : straight 2.5 pipe good and bads


JDM671
02-28-2008, 02:59 PM
I have a cat on mine but in the end its just a straight pipe. Does anyone know whats the goods and bads of this set up. (note: I was bored in class and decided to do this)

steve shadows
02-28-2008, 03:00 PM
your california?

Do you like your car?

Do you want to keep your car?

Do you know what the "Police" are?

johngriff
02-28-2008, 03:09 PM
but noisy is so tight yo!

Quite exhaust in cali = no ref tickets and no trouble.

Probably not much of a performance gain either.

downshift_sideways
02-28-2008, 04:19 PM
I'm running.

3'' Turbo elbow
3'' Turbo downpipe
3'' Test pipe
3'' catback exhaust.

on my SR20DET.

I live in california. Honestly my whip is stupid fucking loud.
I DD everyday. I've never once had problems with a cop yet. I have been pulled over numerous times, but never hassled for my exhaust. I live in the bay area, so I'm not sure how the police are in CARSON. Just don't do stupid shit on public streets.

and to awnser your question...It all depends on your setup? ka24e? ka24de? sr20det? rb?....etc.

2.5 is good with N/A, where as you would still have backpressure.
2.5+ on turbo cars are a + which doesn't restrick air flow.

turns101
02-28-2008, 04:25 PM
I moved to CA from NY

I would keep it quiet man. CA is not modded car friendly. DO people pull it off? Yes! BUT, they are just getting lucky..

Performance will be up top and losing some low end if you are NA. If its a turbo, obviously we want nothing in the way ;)

my .02

Creizai
02-28-2008, 04:27 PM
I'm running.

3'' Turbo elbow
3'' Turbo downpipe
3'' Test pipe
3'' catback exhaust.

on my SR20DET.

I live in california. Honestly my whip is stupid fucking loud.
I DD everyday. I've never once had problems with a cop yet. I have been pulled over numerous times, but never hassled for my exhaust. I live in the bay area, so I'm not sure how the police are in CARSON. Just don't do stupid shit on public streets.

and to awnser your question...It all depends on your setup? ka24e? ka24de? sr20det? rb?....etc.

2.5 is good with N/A, where as you would still have backpressure.
2.5+ on turbo cars are a + which doesn't restrick air flow.

KA's love 3'' and make more power and never lose any unlike most hondas, but if your in cali and you think 2.5 is more hush hush then i could see the pos out weighing the neg.

JDM671
02-28-2008, 04:40 PM
yeah I dont do stupid shit like those dumb kids. lol no racing here. but I can take some pics of my set up. Also i'll try to make a vid to show you guys and tell me what you think. mmmm O yeah I have a ka24de right now. soooo :)

downshift_sideways
02-28-2008, 04:44 PM
Read this thread.
It all makes sense.

http://www.mx6.com/forums/general-automotive/96263-exhaust-theory.html

sumoboi7
02-28-2008, 04:52 PM
it really depends on how loud it is and how lucky you are. when i had my ka24e i had a 21/4 inch exhaust with a canister muffler and it was stupid loud. i was pulled over a few times so i slapped a silencer in there which i ended up cracking and blowing out. but while it was in i had no trouble with cops. after i took the broken silencer out it was pretty effin loud cause i blew a couple wels and started to break a hole in the side of my muffler.(cheap ebay shit) and it got really loud and still no cop attention. just be cutty while driving around cops. dont go blipping hte gas. drive like a granny essentially. gl with ur car n hope u dont get ne tickets like i did. haha =)

ATLspeed
02-28-2008, 04:57 PM
if you go straight pipe....then just chill with it on open roads

*High five for havin a mx6 if you still have it. i have a pgt-ze

JDM671
02-28-2008, 05:06 PM
heres pics:
http://img176.imageshack.us/img176/2849/1000052ts2.jpg
http://img404.imageshack.us/img404/2397/1000053aj5.jpg
http://img404.imageshack.us/img404/2418/1000057cj3.jpg
the vids are on there way :D

Taniguchi_Is_#1
02-28-2008, 05:09 PM
heres pics:
the vids are on there way :D

no offense, but that just looks retarded. like you just cut off your muffler with a hacksaw.

ATLspeed
02-28-2008, 05:12 PM
thats how i ran mine for awhile when i got pulled over for havin an "performance exhaust" when it was just an exhaust leak. i got the muffler off and drove around with mine looking like that til i went ot get a stock muffler welded on. HELLA LOUD!!

JDM671
02-28-2008, 05:15 PM
no offense, but that just looks retarded. like you just cut off your muffler with a hacksaw.

actually I welded a smaller pipe in the end which reduced the sound a little. If I ran it with out that peace it would be hella loud

kandyflip445
02-28-2008, 05:17 PM
heres pics:
http://img176.imageshack.us/img176/2849/1000052ts2.jpg
http://img404.imageshack.us/img404/2397/1000053aj5.jpg
http://img404.imageshack.us/img404/2418/1000057cj3.jpg
the vids are on there way :D

ROFLMAO, it looks like a crank handle for one of those old cars. :bowrofl:

joshchewuhh
02-28-2008, 05:19 PM
I ran 2.5 straight with a cat

and ooo my lord was it loud i was kae also!
sooo like tractor truck status loud

haha
ya put a 27'' resonator and its fine for me.

by running straight pipe your losing back pressure if your n/a

JDM671
02-28-2008, 05:24 PM
http://www.youtube.com/watch?v=-yFZACBJuPI
another in a moment

kandyflip445
02-28-2008, 05:29 PM
I ran 2.5 straight with a cat

and ooo my lord was it loud i was kae also!
sooo like tractor truck status loud

haha
ya put a 27'' resonator and its fine for me.

by running straight pipe your losing back pressure if your n/a

STFU about backpressure. Go do a search about 3" exhaust, ESPECIALLY ON THE KA, I'm tired of explaining that shit.

stance
02-28-2008, 05:37 PM
jdm671.....is this jesse? dude what happen to you canister? this is aaron btw

JDM671
02-28-2008, 05:37 PM
Read this thread.
It all makes sense.

http://www.mx6.com/forums/general-automotive/96263-exhaust-theory.html

wow nice :bigok:

JDM671
02-28-2008, 05:37 PM
jdm671.....is this jesse? dude what happen to you canister? this is aaron btw

sup aarron this is jesse :hsdance:

JDM671
02-28-2008, 05:45 PM
heres me driving normal with window open
http://www.youtube.com/watch?v=X85KkLOAQKw

stance
02-28-2008, 05:59 PM
do u still have the HICAS on you car?

rb25_s13*CHUKI
02-28-2008, 06:08 PM
No offense it looks stupid.. It doesn't sound bad though... Also get some gas dude!! I seen the gas needle almost below E...

rhs13
02-28-2008, 06:22 PM
if we're going to argue about backpressure and torque and hp... i thought this was a good write up...

http://www.yoursciontc.com/information/backpressure.html

as far as your "setup:"
good: sounds dope
bad: 1.) cops, esp in soCal, are going to hastle you. it is not a matter of "if." it is a matter of "when."
2.) zilvians are going to give you red squares.

Taniguchi_Is_#1
02-28-2008, 06:33 PM
if someone can post evidence that proves backpressure makes horsepower, i will post some CP.

Turtle
02-28-2008, 06:38 PM
heres me driving normal with window open
http://www.youtube.com/watch?v=X85KkLOAQKw


Hope you were going to a gas station. :bite:

rhs13
02-28-2008, 06:58 PM
maybe this will clear some things up for those who might still be scratching their heads.

Cylinder Scavenging, backpressure etc all has to do with manifold/extractor/header design, once your past that point, you want as much flow as possible even in an NA car.

WISH ONE
02-28-2008, 07:09 PM
i used to rock my stock exhaust cut off at the axle but only because it got a huge hole there from being low and i didnt see a point in fixing or buying a new one with the new sr on the way.

kandyflip445
02-28-2008, 09:44 PM
maybe this will clear some things up for those who might still be scratching their heads.

That quote says nothing about backpressure really. It's more of a statement about flow. :jerkit:

You do need flow and exhaust gas velocity. Those are the important things in an exhaust. Not backpressure. :squint:

downshift_sideways
02-28-2008, 09:51 PM
Yea...That looks stupid as hell man.

Get some blastpipes in that bitch.

JDM671
02-28-2008, 09:56 PM
i used to rock my stock exhaust cut off at the axle but only because it got a huge hole there from being low and i didnt see a point in fixing or buying a new one with the new sr on the way.

same here :D hey guys the last vid is almost here

Anto
02-28-2008, 10:00 PM
I just put a 3" canister on my car and it's suuuuuper loud.

Makes me miss my Border 3. That shit is quiet when cruising and loud when you gas it.. Yee haw

JDM671
02-28-2008, 10:00 PM
Yea...That looks stupid as hell man.

Get some blastpipes in that bitch.

but...if you look at it from the back you cant see anything. its like nothing is even there :rolleyes:

JDM671
02-28-2008, 10:03 PM
Hope you were going to a gas station. :bite:

sry about the gas... the gauge is always showing empty. It only works when I full tank but once it reach under half the gauge will shows empty -_-

downshift_sideways
02-28-2008, 10:20 PM
but...if you look at it from the back you cant see anything. its like nothing is even there :rolleyes:

sorry, but thats just hella :ghey:

Creizai
02-28-2008, 11:07 PM
if someone can post evidence that proves backpressure makes horsepower, i will post some CP.
cp?
http://i133.photobucket.com/albums/q55/chebfarang/pedobear4.jpg

240cracker
02-28-2008, 11:18 PM
[quote=downshift_sideways;1865568]I'm running.

3'' Turbo elbow
3'' Turbo downpipe
3'' Test pipe
3'' catback exhaust.

on my SR20DET.

i run the same... i used to have a quiet SR and i hated it. Loud is the shit. I'm in orange county.. thats the biggest bust u can do and i havn't had a problem yet.

knock on wood;)

downshift_sideways
02-29-2008, 12:11 AM
^thatswhatsup.

Its funny, because when I was KA and I opened at full throttle it didnt sound so loud.

Now my SR with my setup scares lots of ricers :D and my bov can be heard round the world.

steve shadows
03-01-2008, 01:15 PM
Yea...That looks stupid as hell man.

Get some blastpipes in that bitch.

I fucking hate that stupid trend.

barf

your all insane.

I bolted a CS exhaust on instead of a Buddy Club Spec II and picke dup 15 whp and 25 ft lbs of torque.

small engines need some back pressure.=:werd:

rhs13
03-12-2008, 01:29 PM
That quote says nothing about backpressure really. It's more of a statement about flow. :jerkit:

You do need flow and exhaust gas velocity. Those are the important things in an exhaust. Not backpressure. :squint:

did you even READ the ARTICLE? douche.

GoodOl'S13
03-12-2008, 08:18 PM
I fucking hate that stupid trend.

barf

your all insane.

I bolted a CS exhaust on instead of a Buddy Club Spec II and picke dup 15 whp and 25 ft lbs of torque.

small engines need some back pressure.=:werd:
Nice gain! might get something else for my rb

randyjordan
03-12-2008, 08:28 PM
go with 3 inches :)

drift Kid
03-12-2008, 08:42 PM
Im from nc and i have 3inch exhaust str8 pipe.. its not loud at all.. i do have a sr but my buddy with a ka has a 3in exhaust with a muffler and its WAYYYY louder then mines.. i think the turbo has to do alot if its going to be loud or not.. inspection people here consider a turbo to be a muffler

http://a359.ac-images.myspacecdn.com/images01/67/l_29edec32e137fc514aac52dbccee23ee.jpg

Def
03-12-2008, 10:08 PM
Am I the only person who thinks the videos posted sound like a Civic with a small fart can on it - only a bit deeper?

rhs13
03-31-2008, 07:50 PM
heres pics:
http://img176.imageshack.us/img176/2849/1000052ts2.jpg
http://img404.imageshack.us/img404/2397/1000053aj5.jpg
http://img404.imageshack.us/img404/2418/1000057cj3.jpg
the vids are on there way :D

here are pics of my pipes. taken with a camera phone.

http://i5.photobucket.com/albums/y193/rhs13/IMG00008.jpg
http://i5.photobucket.com/albums/y193/rhs13/IMG00009.jpg
http://i5.photobucket.com/albums/y193/rhs13/IMG00010.jpg
http://i5.photobucket.com/albums/y193/rhs13/IMG00012.jpg
http://i5.photobucket.com/albums/y193/rhs13/IMG00010.jpg

240esux
04-01-2008, 04:59 AM
here are pics of my pipes. taken with a camera phone.

http://i5.photobucket.com/albums/y193/rhs13/IMG00008.jpg
http://i5.photobucket.com/albums/y193/rhs13/IMG00009.jpg
http://i5.photobucket.com/albums/y193/rhs13/IMG00010.jpg
http://i5.photobucket.com/albums/y193/rhs13/IMG00012.jpg
http://i5.photobucket.com/albums/y193/rhs13/IMG00010.jpg

ah, fukin sick!!!!!!!

projekt_s13
04-01-2008, 05:26 AM
uhhhhh........... :ugh: :loco:

Not my cup of tea. Reminds me of a trailer park camaro or firebird.

JDM671
04-01-2008, 05:06 PM
I told you guys "I was messing around and was bored" didnt say I would leave it there. :duh: lol but I changed it.
http://a60.ac-images.myspacecdn.com/images01/66/l_15058b6c472c4094290ea02ba610c40b.jpg

Bushido
04-01-2008, 05:46 PM
this page makes my eyes and brain hurt.

rhs13
04-02-2008, 12:20 PM
this piece of shit just keeps getting more and more gay. just stop fucking with the car, you're doing it wrong.

i live for these comments. i'd love to see what your car looks like. i bet you cut pictures out of magazines and hang them up on your wall.

burnsauto
04-02-2008, 12:31 PM
I moved to CA from NY

I would keep it quiet man. CA is not modded car friendly. DO people pull it off? Yes! BUT, they are just getting lucky..

Performance will be up top and losing some low end if you are NA. If its a turbo, obviously we want nothing in the way ;)

my .02

neither is NY... any aftermarket exhaust is illegal, no matter what the dB level is.

!Zar!
04-02-2008, 12:51 PM
rhs13: Your car is a fucking pile of shit. I thought you would stop posting that pile up after the last time you were clowned.

I thought your car was horrid then. But you fucking made it worse!!!
hahaha. I didn't think that was possible.

Are you trying to get your car to be in Mad Max or what?!

Don't say you it was only temporary and you were messing around because you were bored.

That's like sucking your bro's dick and then say you aren't gay, you were only messing around because you were bored.


As for this thread.

On out cars, 3"> 2.5 Get that shitty super street image out of your head that ka's need 2.5.

3" is fine and not loud unless you are running straight pipe and an n1 style canister.

Buy 3" and stop being a pansy.

if someone can post evidence that proves backpressure makes horsepower, i will post some CP.

Uhh... I take that back... Here is my dyno pull...
http://i31.photobucket.com/albums/c391/TurboDrifterZar/ITBDYNO1.jpg
You can clearly see 2.5" is better... Now post pics.

rhs13
04-02-2008, 01:02 PM
rhs13: Your car is a fucking pile of shit. I thought you would stop posting that pile up after the last time you were clowned.

I thought your car was horrid then. But you fucking made it worse!!!
hahaha. I didn't think that was possible.

Are you trying to get your car to be in Mad Max or what?!

Don't say you it was only temporary and you were messing around because you were bored.

That's like sucking your bro's dick and then say you aren't gay, you were only messing around because you were bored.


As for this thread.

On out cars, 3"> 2.5 Get that shitty super street image out of your head that ka's need 2.5.

3" is fine and not loud unless you are running straight pipe and an n1 style canister.

Buy 3" and stop being a pansy.

everything on my car is the way it is supposed to be. if you didnt think making it worse was possible, its only going to keep getting worse. stay posted for more pics.

clowned? did you think i would run to my mommy and cry about it?

no way am i gonna bitch out and say that this is only temporary. that pipe is going to stay on there until i get another fix-it ticket.

... and of course im messing around. you cant be in your right mind and drive a car that looks like mine. if you read my profile, my ride is specifically listed as "black primer POS."

Nobody has the balls to say anything to my face on the street. i'd love to hear this stuff in person.

for everyone who is asking "WHY?!?!"
A: "I dunno, maybe because it's super BAD-ASS?!"

SimpleSexy180
04-02-2008, 01:05 PM
here are pics of my pipes. taken with a camera phone.



WOOOOOO. thats my boy! camaro or firebird? those fuckers with they were like us.

!Zar!
04-02-2008, 01:10 PM
Nobody has the balls to say anything to my face on the street. i'd love to hear this stuff in person.
Judging by your car, you must have mental problems. People tend to stay away from retards and try not to say things that will trigger their crazy.

rhs13
04-02-2008, 01:12 PM
Judging by your car, you must have mental problems. People tend to stay away from retards and try not to say things that will trigger their crazy.

mission accomplished then.

Sonic Motor
04-02-2008, 01:14 PM
got pulled over at least 5 times in the last 3 month.
Why? Exhaust too loud.

2 tickets. 3 times let me go.

This is so cal. Not modified exhaust friendly.

!Zar!
04-02-2008, 01:16 PM
I got pulled over for STOCK exhaust a few months ago.

rhs13
04-02-2008, 01:18 PM
I got pulled over for BEING SUPER BADASS a few months ago.

!Zar!
04-02-2008, 01:27 PM
I got an infraction once for clowning on somebody too hard.

SHIFT_*grind*
04-02-2008, 01:29 PM
Every picture in this whole thread is laughable. I mean, if that's what you're into, then props for being "different"...just like everyone else who's hopping on the "weld an extra 2+ feet onto your exhaust" bandwagon.

For what it's worth, I had a test pipe and a 3" canister-style exhaust, and moved to a 3" Catco and Fujitsubo catback combo. Holy SHIT is it 100000x quieter, I can drive my car without giving myself a headache. I'm old.

rhs13
04-02-2008, 01:31 PM
I got an infraction once for clowning on somebody too hard.

oh snap!

it must've been from the e-thuggin police.

!Zar!
04-02-2008, 01:33 PM
oh snap!

it must've been from the e-thuggin police.


Damn straight.

rhs13
04-02-2008, 01:35 PM
Every picture in this whole thread is laughable.

i think that every picture on this entire forum is laughable. i'm sure most of our time spent crying about wheel fitment, paint chips, and ebay bodykits can be used for more productive things... like fixing global warming or feeding starving children.