MS6 Exhaust Thread

[RhoadBlock]

The Genpu guys have an awesome thread so I figured we need this too. Plus it should help nix the newb "which exhaust" thread. I'll have someone make one for the Gen1 MS3 too.

This thread is meant to be the go to thread for MS6 exhaust systems. I've listed all available options. I won't post any sound clips in the OP but you are more than welcome to post one if you like. Please be sure to state your mods in your post as well. And before you request a sound clip...please SEARCH YouTube first on your own!! There's endless vids already posted there and have been for years. Simply search "MS6 (insert brand)" and I'm certain you'll find several clips that will help you.

Feel free to discuss your impressions of the exhaust you have installed. Too loud? Perfect growl? Does it drone?

There is already a Downpipe thread, so this thread is only for catback/axleback systems. I'm also not listing any mufflers (short of the axleback kit from AE). Everyone has their own favorite muffler that they can have any exhaust shop weld in. This thread is listing full CBE systems. The prices listed are approximate retail. You may find them cheaper thru any of our vendors, or used. And of course you can always find great deals in our F/S Section.

Note: Prices listed are ball park. You may be able to find better deals from various websites. It's up to you to find the best price.

Here is a helpful diagram from StreetUnit explaining all the parts of the MS6 exhaust section:


AutoExe Axleback Mufflers - $1,880


Corksport 80mm Dual CBE - $700


CP-E 3" Single CBE - $690


CP-E 3" Dual CBE - $1020 (+$100 for resonator)


ETS 3" Dual CBE - $1100


GHL 3" Dual CBE - $940


Magnaflow 2.5/2.25" Dual CBE - $800
- Taken from magnaflow.com:
- L4 2.3L; Mazdaspeed 6
- 5 x 8 x 14in. Muffler; 2.5/2.25in. Tubing; 4.0in. Polished Stainless Tip; DUAL SPLIT REAR EXIT


SURE has a CBE in the works for us too. I'll update with price/pic of it once it's released.

[psychophyr]

Thanks for this! It's very helpful for new people looking for options. I have a clip to contribute for magnaflow.

Mazdaspeed 6 - Magnaflow CBE Before and After - YouTube

Mazdaspeed 6 - Magnaflow CBE Before and After - YouTube

And link to my thread if you want pics and stuff.

Magnaflow CBE with Catless ATP DP

[jroc]

no video (yet), but im running no cats, no muffler 3". fuck yea its loud.

i love it. people notice all around. car is low to the ground, theres shitty drivers here, so id like to be noticed to the soccer mom on her phone in the SUV with her side mirrors pointed to the sky.

[RhoadBlock]

I ran a single exit CP-E with the 14" resonator and no mufflers, and an old school SU test pipe. We don't need a dual exit on a 4 banger imo & it's the lightest CBE available. Loved it. Awesome growl at idle, loud & great tone at WOT. Not bad at all for daily driving imo.

Then I installed a catless CPE DP & DNP turbo mani. Holy shit that was loud. Idle wasn't too bad, but start-up & WOT were fucking bananas. Neighbors hated me, especially coming home after 3 in the morning. Droned like a motherfucker on the interstate. My system had to be cranked so loud to not hear the exhaust lol.

No vids of it, but there's probably some you can find on youtube of others with similar setups.

[smokeys36shop]

old set up was a corksport downpipe, corksport catted mid pipe and magnaflow exhaust. dynoed on a mustang dyno and got 250whp and 275 tq. EFI Logics said the reason why it was so low in numbers may be because of the restriction from the magnaflow exhaust. he couldn't figure it out. that and maybe my 50/50 bov.

so i recently switched from a bov to a greddy bpv ( love the sound) and picked up a ghl exhaust ( had a guy who wanted to trade to a quieter exhaust due to issues with cops)

so current setup is corksport downpipe, corksport catted mid pipe and ghl 3inch exhaust and i love the sound. very similar to any sti in my opinion.

i also want to point out what magnaflow says about their exhaust system

L4 2.3L; Mazdaspeed 6
5 x 8 x 14in. Muffler; 2.5/2.25in. Tubing; 4.0in. Polished Stainless Tip; DUAL SPLIT REAR EXIT

showing its not a full 2.5 in exhaust. another reason why the tuner felt my car was so restricted

[TiGraySpeed6]

Question on the AUtoExe axleback- holy crap, please let that price be a typo??????

AutoExe Axleback Mufflers - $1,880

I'm running M2 catless down pipe (aka: the ebay dp) connected to OEM exhaust. Performs well enough, and has nice snarl to it which has been improving as the dp has mellowed (or developed it's coating of soot/black shit inside)

will be adding a magnaflow system when I get around to it....

[RhoadBlock]

Duly noted. I'll add the full Magnaflow dimensional description along with it.

Originally Posted by TiGraySpeed6 Question on the AUtoExe axleback- holy crap, please let that price be a typo??????

Nope. Everything AE is unimaginably expensive. But all their stuff is "real JDM" and comes straight from Japan.

[TiGraySpeed6]

geez, could fly to japan, including room & board once there, source my own raw materials, manufacture it myself, fly back and still save monies

damn.

[smokeys36shop]

Originally Posted by TiGraySpeed6 geez, could fly to japan, including room & board once there, source my own raw materials, manufacture it myself, fly back and still save monies damn.

honest opinion here. if your looking for an exhaust look for a 3inch one and skip the magnaflow. for the price all your really paying for are the larger mufflers and better quality piping. the size of the pipe remains almost the same as stock ( i think after the Y pipe might be a little larger...stock is 1.75" and magnaflow is 2.25" correct me if i am wrong ). i kicked myself after i bought magnaflow.. while doing alot of research on it and hearing other peoples 3 inch exhaust cars these past few years of owning the magnaflow exhaust made me want something better....and i am very happy i switched to a 3inch exhaust.

idk tigrayspeed6....based on your mods i think your looking for something thats better...not almost the same as stock. you have a downpipe and such...sounds like it would be a waste not to go 3". just my opinion tho so don't take it personal

[RhoadBlock]

Also, there is always the option of hitting up a local muffler shop, having them fab you up something (usually between $300-$400, sometimes even cheaper) and support one of your local businesses. Granted the stuff usually isn't mandrel bent, but local muffler shops are badass imho. I'm all for supporting local businesses and shit.

Just throwing that $.02 out there.

and for staying quiet, if you're just looking for a bit of a bump and nicer exhaust note, Magnaflow is cool. I'd still pick up a 3" with a good muffler and weld in a good resonator. My other $.02.

Great, now I'm completely penniless.

[TiGraySpeed6]

You'd think, huh? I've certainly asked myself the same question a number of times!

Nope, no desire for the volume, drone or tenth of a percent performance increase. I is an old man and this is my daily, often running the family around too.

catless dp & mf gives me a majority of the performance, and will be deep & quieter than average when wanted, and volume control by right toe when playing.

Here's a good reference point- if I had the cash to replace my turbo, lets say up to the level that dougiefresh has gone, that's not what I'd do. I'd get a BNR stage 1 and bank the remainder. Add to that the fact that I've managed to go this long without diff mounts and you get a good sense of my driving style and goals

[smokeys36shop]

Originally Posted by TiGraySpeed6 You'd think, huh? I've certainly asked myself the same question a number of times! Nope, no desire for the volume, drone or tenth of a percent performance increase. I is an old man and this is my daily, often running the family around too. catless dp & mf gives me a majority of the performance, and will be deep & quieter than average when wanted, and volume control by right toe when playing. Here's a good reference point- if I had the cash to replace my turbo, lets say up to the level that dougiefresh has gone, that's not what I'd do. I'd get a BNR stage 1 and bank the remainder. Add to that the fact that I've managed to go this long without diff mounts and you get a good sense of my driving style and goals

well from personal experience driving with downpipe,midpipe and magnaflow exhaust its a nice growl. in low rpms around 40mph in 5th gear it sounds very much like stock. only until you get on it will it give a nice tone in my opinion. compared to what i have now. the only time you won't get noise is 40 mph in 6th gear lol...

the magnaflow setup can be compared to the stock gen2 exhaust on a cold start in my opinion. my daily driver isn't the speed6. my 2011 speed 3 so i don't mind the louder exhaust on the 6

[dooderek]

3 inch straight pipes one resonator no cats, header wrapped till y bend 2.5 dual exits

mazdaspeed 6 attempted launch in the dirt - YouTube

mazdaspeed 6 attempted launch in the dirt - YouTube

mazdaspeed 6 fun in the dirt v1 - YouTube

mazdaspeed 6 fun in the dirt v1 - YouTube

custom exhaust - YouTube

custom exhaust - YouTube

[smokeys36shop]

rhoadblock add this also
ETS Dual Exit Cat-Back Exhaust System
Application: Mazdaspeed 6
Material: Stainless Steel
Piping Diameter: 3" catback to 2.5" dual outlets

notice how its not a full 3 inch exhaust

also corksports exhaust specs are more than 3"
80mm = 3.15" exhaust

[RhoadBlock]

I'll note the ETS 2.5" outlets. I already had CS's listed as 80mm. 80mm just sounds less gay than 3.15"

[smokeys36shop]

also change the price on the magnaflow to $455.95

per this site - Magnaflow Cat-Back Exhaust System for Mazdaspeed 6 #16609 - Revolution Performance Motorsports!

i am sure there are cheaper places

also if there are fans of streetunit here looking to buy from them and get free shipping they will price match the rpm site. i ordered my old magnaflow from streetunit for $455 shipped

Originally Posted by RhoadBlock I'll note the ETS 2.5" outlets. I already had CS's listed as 80mm. 80mm just sounds less gay than 3.15"

lol good point

[jrlms6]

Originally Posted by smokeys36shop old set up was a corksport downpipe, corksport catted mid pipe and magnaflow exhaust. dynoed on a mustang dyno and got 250whp and 275 tq. EFI Logics said the reason why it was so low in numbers may be because of the restriction from the magnaflow exhaust. he couldn't figure it out. that and maybe my 50/50 bov. so i recently switched from a bov to a greddy bpv ( love the sound) and picked up a ghl exhaust ( had a guy who wanted to trade to a quieter exhaust due to issues with cops) so current setup is corksport downpipe, corksport catted mid pipe and ghl 3inch exhaust and i love the sound. very similar to any sti in my opinion. i also want to point out what magnaflow says about their exhaust system L4 2.3L; Mazdaspeed 6 5 x 8 x 14in. Muffler; 2.5/2.25in. Tubing; 4.0in. Polished Stainless Tip; DUAL SPLIT REAR EXIT showing its not a full 2.5 in exhaust. another reason why the tuner felt my car was so restricted

Reviving this thread a bit...

That's the setup I'm going to be going with, purchasing DP this week.

Will be CS DP, TXS RP, Magnaflow CBE. But will be getting the CS catted RP next month or sooner, and hopefully by summer CS CBE. (Or working with someone on a GHL)

My question is...How was the fitment of the 3" CS to the smaller 2.5" Magnaflow? What did you do to make it work?

[smokeys36shop]

Originally Posted by jrlms6 Reviving this thread a bit... That's the setup I'm going to be going with, purchasing DP this week. Will be CS DP, TXS RP, Magnaflow CBE. But will be getting the CS catted RP next month or sooner, and hopefully by summer CS CBE. (Or working with someone on a GHL) My question is...How was the fitment of the 3" CS to the smaller 2.5" Magnaflow? What did you do to make it work?

exhaust flanges were the same..but i used a donut gasket to make sure i didn't get any leaks. i don't remember the size tho. Just took the test pipe to autozone

[jrlms6]

Originally Posted by smokeys36shop exhaust flanges were the same..but i used a donut gasket to make sure i didn't get any leaks. i don't remember the size tho. Just took the test pipe to autozone

Alright good to hear. Did you do the install yourself?

I'll probably purchase the CS donut gasket with the points from the DP.

Before reading your posts I was going to wait it out and see if I liked the DP/Magnaflow combo...but after I think I'm just going to do 3" regardless

Plus, it's so quiet...want a little more bang to it.

[smokeys36shop]

Originally Posted by jrlms6 Alright good to hear. Did you do the install yourself? I'll probably purchase the CS donut gasket with the points from the DP. Before reading your posts I was going to wait it out and see if I liked the DP/Magnaflow combo...but after I think I'm just going to do 3" regardless Plus, it's so quiet...want a little more bang to it.

i would recommend the 3" over the magnaflow in all honesty. for the power and the sound. i am very happy with it. your some what local.. i will be going to the OCC meet this year. if your going and want to hear my set up feel free to stop and chat.

[jrlms6]

Originally Posted by smokeys36shop i would recommend the 3" over the magnaflow in all honesty. for the power and the sound. i am very happy with it. your some what local.. i will be going to the OCC meet this year. if your going and want to hear my set up feel free to stop and chat.

Sometimes I kick myself for getting the Magnaflow and not going for 3" (over a year ago now).

Unfortunately, I'm not going to the OCC meet, but man I would love to hear the setup. Doesn't seem like many GHL's out there.

I've been tossing around the idea of pairing the CS DP/RP with Cp-e single with resonator AND muffler to tone it down a bit. But really just wanting dual for aesthetic purposes.

[Lost hawaiian]

Go 3 inch.. I have the corksport and it was louder than I liked. I added a resonator and love it now. I like the sound but the wife hated it. So I had to tone it down a little.. Got to keep the woman happy right.

Sent from my SCH-I510 using Tapatalk

[Fillups66]

So is there really any point with going witg a dual exhaust setup, or is it just personal preference?

[dooderek]

no benefit

[rainking]

Mazda 6 MPS Limousine Typ CG ab 05 $1500

Auto Tuning Store

Easy install. Subtle sound. Recommended.

Pics will show restrictions at "Y" for dual exhaust. No drone.

[dooderek]

someone buy my apocalypse pipe

[ahilldru]

I'm a total n00b to tuning. Never had any money or a car worth putting money into. For the 3" CBE systems, would I need an adapter of some kind to join the stock cat to the new parts? Also, do these systems pass state inspections or have issues with warranties?

[CorkSport]

Depends on the upgraded exhaust system. Our exhaust for example will connect to the stock second cat or a larger diameter racepipe but it is 80mm (3 inch) at the cat connection. Some exhausts neck down to 2.25 at the catalyst connection.

-Derrick

[rymanmazda]

ill definatley check my local shop but this thread is awesome!

[Weston]

How is the CP-E full non-catted DP with single exit exhaust? (resonated with muffler)

Not worried about numbers, but would that be obnoxiously loud and drone?

[fivefingerdeathpunch]

Originally Posted by Weston How is the CP-E full non-catted DP with single exit exhaust? (resonated with muffler) Not worried about numbers, but would that be obnoxiously loud and drone?

3" so it will probably drone a bit. mine does but i got used to it or just avoid it as much as possible. dont really hear it much cruising on the highway because i listen to my music loud. the cpe single is loud but the obnoxious part is subjective. the resonator and muffler should help quite a bit though. cpe single sounds like sex btw. sometimes i wish i got that. i say you get it

[rymanmazda]

has anyone heard if the SURE CBE came out?

[fivefingerdeathpunch]

Originally Posted by rymanmazda has anyone heard if the SURE CBE came out?

hasnt yet. they are releasing the speed3 one first and that hasnt come out yet. i thought they said it would be soon though so maybe within a couple months. you can ask one of the sure guys though... they are generally cool about giving that information out.

[Nathan 6]

Have they given any info on pricing and design? Sure makes high quality shit.. wouldn't mind picking one up and selling the magna flow.

Sent from my HTC EVO V 4G using Tapatalk 2

[fivefingerdeathpunch]

545$ for gen1 speed3. guess thats the only one thats about to be released. i assume because its single outlet. dunno what they are doing for us and the genpus though

http://www.mazdaspeedforum.org/forum/foru...xhaust-121208/

[IamJamen]

Anyone have any thoughts on CP-E's 3" single outlet exhaust with a muffler, no resonator, and a catless m2 DP? I am thinking it is going to be too loud/drone for a DD or even highway cruising. Thoughts?

[Code Monkey]

I am on stock DP, gutted TP, and am about to have the cp-e single-exit CBE installed, the off-road version. Can post some clips if you are interested.

I will be adding the cp-e hi-flow DP in a few weeks too.

[KevMS6]

My exhaust drones like mad, really does my head in some days but sounds great when put the foot down... has anyone else installed resonator on the 6?
really considering one... its a custom built exhaust i have and the back boxes are a bit small.
is fitting resonator a suitable solution to drone?

[IamJamen]

Originally Posted by Code Monkey I am on stock DP, gutted TP, and am about to have the cp-e single-exit CBE installed, the off-road version. Can post some clips if you are interested. I will be adding the cp-e hi-flow DP in a few weeks too.

I'm really interested in noise levels with CP-E's 12" muffler installed. There is a potential group buy in the making and I would love to get in on it if the noise/drone isn't too loud for a DD.

[dale_gribble]

Here's mine. The secret is the resonated race pipe. Stock DP, Corksport Power Series Race Pipe, 3" exhaust to 2.5" Magnaflow mufflers made by local exhaust shop. As a side bonus, the shop uses the stock exhaust bezels which look great instead of replacing them with tips.

This is one of my favorite exhausts I have ever had on a car. Quiet inside besides a nice low tone, zero drone and I can hear it when I want to.

Mazdaspeed 6 3" custom exhaust with Corksport Power Series Race Pipe - YouTube

Mazdaspeed 6 3" custom exhaust with Corksport Power Series Race Pipe - YouTube