Straight Pipe! what is involved

[ST3ALTH]

Hey everyone,

I am looking at getting a straight pipe installed. I currently have a PRM SRI and a mazdaspeed 3 catback exhaust. I love the sound but i was looking for something a bit more ruff/more rumble lol.

I have been looking into this so called straight pipe.....my question is what does this do or what does it replace, how much am i looking at ($) and will it change the sound of my setup?

[Kappa]

its all pipe from the header back.. put on a header.. that will give you more sound

[ST3ALTH]

sweet, i was thinking about a header, just dont want it to through any CEL's. what header would you recommend?

[shu5892001]

of course vibrant! lol

[shu5892001]

Also regarding your question on straight pipe, nothing much is involved... I think they just replace your cat with a straight pipe, meaning you will be running with 1 cat (assuming stock header). Any muffler shop should be able to do it around 100 dollars give or take...

[Soyabean]

Sraight pipe just eliminates the 2nd cat. So you essentially replace your 2nd cat with the straight pipe. I sent you a pm

[Kappa]

headers its all up to how much work you wanna do with you install it.. plus how much you want to work on it after.. :)

[ST3ALTH]

well i have a stock header, and a MS3 catback. So as long as i dont delete both cats and as long as i can pass emissions, ill probably pick one up. Will there be a noticeable difference?

[Kappa]

yes there should be a difference in the butt dyno! and yeah if you want to pass emissions then header would be way better than str8 pipe but i dont have emissions tests so i dont really know

[ST3ALTH]

Well im going to pick up a straight pipe tonight and give it a go, see what it sounds like lol. If i dont like it i can always go back to stock. Thanks to SoyaBean!

[thanu31]

where are you getting this?

I was also interested in getting this done

[stevenma188]

Yes you can pass e-test with just the cat in the header. In fact I got cleaner results with my CBE (2nd cat delete) when compared to stock.

[ST3ALTH]

Hey Thanu,

Im picking mine up from Soyabean tonight, dont know where else you could get one though.


where are you getting this?

I was also interested in getting this done

[taz4432]

If you have an Access Port or some other method to tune the car then you can easily pass emissions with no cats...it's just a matter of doing an 'e-test tune' so that you get desired emissions.

[Soyabean]

lol my straight pipe was sitting in the basement for like a year cuz i find my car loud enough. I didnt kno there was this much demand for it lol. I would have posted it up long time.

see u tonight Tyler

[thanu31]

lol dam, i been always looking around for one locally
oh well

[prime]

WTF you had one all along!? LOL I was interested in picking one up too. Oh well...

[Kevin@nextmod]

I had a straight pipe on my mazda 3 before. Noticible gain for sure. Much more power on the highway and when the AC is on i can feel the car less sluggish.

[Soyabean]

yea..... didnt know so many people wanted it lol. Oh well. Its gone. Tyler just picked it up 2 mins ago

[iGOzoom]

My buddy got this done on his GTI straight pipe for $80 at quick muffler. On dufferin past lawrence

[ST3ALTH]

sweet, im going to go and try and get the one i just got installed, hopefully it fits. if not i will get the straight pipe done and just re sell the one i just bought. ill keep everyone posted!

[ST3ALTH]

Soooo i got my straight pipe installed today. I ended up deleting the second Cat and putting in a straight pipe. Sounds awesome and the car has more pep! The one i bought off of Soyabean is 2 inch piping and i had 2.5 from the mazdaspeed 3 exhaust so i did not work for me. So if anyone wants it just shoot me a PM and i will let it go for a crazy cheap deal!!!!! lol

ill try and get a vid up on youtube so you guys can hear it.

[MistaChin]

1 cat down, one more to go ;)

header time

[ST3ALTH]

1 cat down, one more to go ;)

header time

lol i would love a header, but i would have to get a cat installed so that i dont delete both!

You have a header right? if so will you be deleting both your cats?

[MistaChin]

lol i would love a header, but i would have to get a cat installed so that i dont delete both!

You have a header right? if so will you be deleting both your cats?

lmao i kid i kid. I do have a header, but it's in the box all sealed up in my room. Just waiting for spring. I won't delete both my cats, i'll keep one. I want to pass emissions.....oh yeah and i care about the environment blah blah blah

[ST3ALTH]

lmao i kid i kid. I do have a header, but it's in the box all sealed up in my room. Just waiting for spring. I won't delete both my cats, i'll keep one. I want to pass emissions.....oh yeah and i care about the environment blah blah blah

lmao yea, my car is pretty loud now only when i punch it! but im going to drive with it for a few weeks and see if i can handle the sound.....if not the cat goes back on lol.

[MistaChin]

lmao yea, my car is pretty loud now only when i punch it! but im going to drive with it for a few weeks and see if i can handle the sound.....if not the cat goes back on lol.

post up a video when you can. I'd love to hear it.

[ST3ALTH]

yea i will, going to try and take one tonight or tomorrow.

[shu5892001]

lmao i kid i kid. I do have a header, but it's in the box all sealed up in my room. Just waiting for spring. I won't delete both my cats, i'll keep one. I want to pass emissions.....oh yeah and i care about the environment blah blah blah

install it....:chuckle

[hit26k]

yea i will, going to try and take one tonight or tomorrow.

so if i hear a loud ass car around brampton i know its you. lol

[MistaChin]

install it....:chuckle

goddammit shu lol

[Donutz]

Do it

[Soyabean]

Soooo i got my straight pipe installed today. I ended up deleting the second Cat and putting in a straight pipe. Sounds awesome and the car has more pep! The one i bought off of Soyabean is 2 inch piping and i had 2.5 from the mazdaspeed 3 exhaust so i did not work for me. So if anyone wants it just shoot me a PM and i will let it go for a crazy cheap deal!!!!! lol

ill try and get a vid up on youtube so you guys can hear it.

Seriously? When I bought it the guy told me that it'll fit on my Borla because he had a mazdaspeed accessory cbe. Both Borla and Mazdaspeed are 2.5 inch and his came off the mazdaspeed accessory.... Hmmm, sorry about that :S

[Donutz]

Not that I don't believe you, but can you post a pic of the ID against a measuring tape? I might be interested.

[thanu31]

anyone know if that pipe will fit my borla?
If it does il buy it from you

[Soyabean]

Thanu the guy i bought it off of told me it would fit. So i dunno. And Jason, this was the one that you were supposed to buy from me before your honeymoon like a year and a half ago?? lol

[Donutz]

Ha ha! Yeah, I was trying to remember why I didn't pick it up from you!

[Hives]

I had straight pipe before. Sounds badass, but u loose back pressure. Bought a catback after a year b/c I missed the back pressure

[Elusivellama]

Thanks to Jason, I have a much better understanding of these mods :)

So... like.. option 1:
SRI
Straight Pipe
CBE

Option 2:
SRI
Header
CBE


I'm actually kinda leaning towards option 1, if the difference in gain isn't that much.

[doughboyr6]

i love my straight pipe...paired with borla CBE, stock header. I wasn't willing/prepared to spend the money on a header. And i didn't want it very loud. This added more attitude to the sound and a little bit louder. The pickup was much better immediately. Never dynoed the diff though.

[shu5892001]

You forgot option 3, the real baller option:
SRI
Header
Str8 pipe
Cbe

lol

Thanks to Jason, I have a much better understanding of these mods :)

So... like.. option 1:
SRI
Straight Pipe
CBE

Option 2:
SRI
Header
CBE


I'm actually kinda leaning towards option 1, if the difference in gain isn't that much.

[kala]

Have you had a chance to make a video? I might try to get something done over my winter break!

[ST3ALTH]

I have not had a chance yet. i have been super busy with christmas and getting ready for my vacation to Hawaii. So if i get a spare chance i will try and make a vid.

[Donutz]

Search on YouTube and you'll find a number if vids. They sound nothing like they do in person though.

[thanu31]

I want to get this done asap, can anyone reccomend a shop in scarborough/markham area to do this?

[Default User]

I want to get this done asap, can anyone reccomend a shop in scarborough/markham area to do this?

Any exhaust shop can do it
All it is, is a pipe to eliminate resonators, flex pipes, and unnecessary bends.

In Scarb - Majestic and NoyzBoyz do custom exhaust work.

[thanu31]

thanks :) cant wait

[shu5892001]

Thanu you have a header and you are going straight pipe?

[Thrizzl3]

I want to get this done asap, can anyone reccomend a shop in scarborough/markham area to do this?

oh nooooooo lol your going to be a civic now LOL

[Default User]

Thanu you have a header and you are going straight pipe?

Hella LOUD!!!!

[thanu31]

my header is not installed, i might just do straight pipe and leave it at that.


oh nooooooo lol your going to be a civic now LOL

i hope its not gonna sound ricey, i dont wanna lose the borla tone

[abstrakt]

lol i would love a header, but i would have to get a cat installed so that i dont delete both!

You have a header right? if so will you be deleting both your cats?

dude i am pretty sure you can find a set of headers with a cat assembly no?

[Darkice]

dude i am pretty sure you can find a set of headers with a cat assembly no?

I can find headers for 300$ brand new

[Default User]

I can find headers for 300$ brand new

Share the wisdom

[Kiyomi]

You forgot option 3, the real baller option:
SRI
Header
Str8 pipe
Cbe

lol

I had that last week shu, but it was like i was driving an f1 car lolz!!! mps(vlad) got to drive it lolz! imo, get option 2 and swap out the cat for straight pipe for race days if you wanna sound crazy loud. that way you get better reliability and better natural gains.

[sol_searchin]

Don't kill the enviornment over 1 hp (or less)

[Kiyomi]

Don't kill the enviornment over 1 hp (or less)

thats not true, but i agree on saving the environment.

[ErikO]

There seems to be a lot of misinformation, or misused terms in this thread.

The classic definition of a "straight pipe" is an exhaust that has no cats, resonators or mufflers from the manifold/header back. Just a single piece of pipe (sometimes one continuous tube) all the way out the back of the car.

Now, what many in this thread are referring to as a "straight pipe" is a cat delete pipe, i.e. a straight section of tube that connects the manifold/header to the exhaust system after where the cat(s) would normally sit.

A classic straight pipe on an N/A car will get you a ticket and lose horsepower unless correctly sized, whereas a cat delete pipe will make the car slightly louder, worse for the environment, probably throw a CEL and if you're lucky gain a few HP. It is a cheap way to get noticed, though.

I hope this clears things up, or at least educate somebody.

[M_Duch]

Just an FYI for others who think you this mod is pointless or will throw a cel (even though there is no 02 sensor for the 2nd cat)

http://www.mazda3forums.com/index.php?topic=33051.0