The Official Downpipe/Test Pipe/Race Pipe Thread

[TiGraySpeed6]

Virtual dyno count?

[MS3-a(sore)ASS-rex]

Originally Posted by TiGraySpeed6 Virtual dyno count?

I don't like vdyno's personally but if you did the before and after on the same stretch of road in similar conditions your relative gains may be accurate

[chuckms6]

I'll throw up a VD in a week or two when I get mine. I'm thinking before, after with same tune, and after with new tune should cover all the bases.

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[2011speed]

Originally Posted by MS3-a(sore)ASS-rex I don't like vdyno's personally but if you did the before and after on the same stretch of road in similar conditions your relative gains may be accurate

Yea im with you on that one. same road same conditions.

Regardless i would still prefer a real dyno before i justify goin through the hassel of a dp. as i said before i know gains are there, but are they worth the pain?

Who wants to be a lab rat thats gettin a dp soon?

Sent from my left nut.

[forcedinduktion]

Butt dyno

[karl-hungus]

wait. where's the ebay dp?

[MS3-a(sore)ASS-rex]

I've been considering doing the dyno myself. We'll see

[greatdane68]

This is good info guys! Looks like I'll be going with the CNT DP on my Speed3.

[richkidone]

^^^ what this guy said...

[TiGraySpeed6]

Originally Posted by karl-hungus wait. where's the ebay dp?

The ebay DP, or M2 DP, was covered repeatedly in the early posts, relevant quotes below-

Originally Posted by TWOptSL0W You might want to add a section for eBay pipes since they're awesome and a better price and quality than some of those

Originally Posted by infeKteDx Anyone have this ? M2 Performance

Originally Posted by TiGraySpeed6 +1 to the above posts on the M2 & ebay dp's. Mine (an M2 from ebay) is so far holding out well, and no over boosting issues here (yet...), running 20 psi on my everyday tune

Originally Posted by MS3-a(sore)ASS-rex I'm not posting eBay DP's for the simple fact none of our vendors offer them. And I'd rather see our members buy from them personally. Besides all of your posts cover the eBay one pretty well lol

[rfinkle2]

Ridiculously great write-up. Thanks for taking the time to do this.

[MS3-a(sore)ASS-rex]

Originally Posted by rfinkle2 Ridiculously great write-up. Thanks for taking the time to do this.

My thanks

[TiGraySpeed6]

Originally Posted by chuckms6 I'll throw up a VD in a week or two when I get mine. I'm thinking before, after with same tune, and after with new tune should cover all the bases.

@chuckms6 -

It would be great to see the comparison, but (and I'm sure you already know this...) a quick note to be cautious with the "after with the same tune" log as your boost characteristics will be dramatically different, reaching higher boost levels, and much quicker/easier. That is, don't be surprised if this log is just showing off fuel cut.

[ABSpeed3]

Originally Posted by 2011speed Yea im with you on that one. same road same conditions. Regardless i would still prefer a real dyno before i justify goin through the hassel of a dp. as i said before i know gains are there, but are they worth the pain? Who wants to be a lab rat thats gettin a dp soon? Sent from my left nut.

Honestly bro I only paid 170 for my ebay DP and tossed my buddy who has a nice garage a bill to help me. Yeah it was a pain in the dick, but the forums makes it seem much worse. Just take it a step at a time and you'll be ok.

I'm willing to bet tuned I deff gained more than 5hp. I have nothing to prove it, but now EVERY time I go wot in 4th to the top, my heart is racing afterwards. I can be driving on the highway drop into third get on it and spin the tires. The gains were definitely noticeable and I would recommend everyone get the DP.

Plus it sounds sexy..M2 DP to HKS catback

downpipe video.mp4 - YouTube

downpipe video.mp4 - YouTube

[anavrinIV]

Only thing I have to offer here:

AQ Motorsports Catted DP for MS3

It's not sold through any vendors, but it's a legitimate company making (from what I've found) a quality product. And for less than most of them out there.

[chuckms6]

Originally Posted by TiGraySpeed6 @chuckms6 - It would be great to see the comparison, but (and I'm sure you already know this...) a quick note to be cautious with the "after with the same tune" log as your boost characteristics will be dramatically different, reaching higher boost levels, and much quicker/easier. That is, don't be surprised if this log is just showing off fuel cut.

I'm aware of that possibility but if you remember I'm load tuned so I should be alright :-) my w2 should be here today or Monday so it'll be another few weeks :/

tapatalkin to you

[SLOWHATCH]

I posted VD graphs of before and after dp install. Logs taken on same rd same conditions etc. If I recall it was 18hp gain and 25ish tq gain.

DP is definitely worth the gains, just not the major fail I encountered doing mine. I doubt anyone will have as hard of a time provided yours has not been messed with before.

[Ferg]

@codyb154

[drenkel]

I did the DP install yesterday by myself... had never done a DP before... took just over 8 hours.

I already had the UR catless test pipe so I went with the UR Downpipe to have matching components. I can say the install was a complete bitch for a first timer with no help. If your not mechanically inclined I would strongly suggest you get someone else to help you who has some experience. With what I know now it could have probably done in 3-4 hours with a second pair of hands.

As far as power gains, it will be different for everyone depending on your mods, but on my car I diddnt notice much top end improvement, but mid range (3K - 5K) there's alot more torque there. I spin all of first, all of second, and half of third and I have a good set of tires.

Install is a major PITA, and I would recommend making this your last mod, but to answer your question.... yes, it is definately work the pain, time and busted nuckles.

BTW, my Gen 2 is NOT throwing the lean codes people complain about when being catless. Ultimate Racing FTW.

[Dmurray06]

I believe, I could be wrong, but I think the lean code is related to the extended rear o2 bung, but I believe most of the manufactures have corrected this problem.

[jrlms6]

Out of curiosity, is anybody (MS6 owners) running the Pro Tuning Lab downpipe?

A friend of a co-worker is selling his never installed at a decent price, just haven't heard much, if anything, regarding them at all.

[TiGraySpeed6]

Looking at the dp on Pro-Tuning's yahoo store website, and it looks like they are just re-selling the M2 DP.

If that's the case, then it's worth ~$130-!40 if it's new. It's listed at $285 on their site.

To save others the effort of searching it out-

Mazdaspeed 6 Stainless Downpipe Exhaust Down Pipe

[chuckms6]

Ebay special right there.

tapatalkin to you

[jrlms6]

I've only come across one video on YouTube of somebody running it, so I'm assuming it's not to popular lol. Does look pretty similar to m2.

[vrspeed10]

does anyone know if by having an aftermarket turbo manifold help cure smoking turbo since the difference in preturbo pressure will change???

[Matt H.]

would like to do full 3 inch down pipe and have seen that the factory has donut gasket to the catback and alot of the full 3 inch mounting flanges are just a flat gasket style my question is if you get one is there a list of catbacks that will mate to this style properly or will i need an adapter similar to when you mount 3 inch to stock catback just made for 3 inch

[jman46]

That's not true, it depends on the DP. My cp-E bolted right up to my stock catback.

[Matt H.]

thats because that down pipes flang is part of the pipe and it is shaped like the original donut gasket talking bout down pipes like the CNT AQ and so on look at the flange it is 3 inch but has no privision for a donut style gasket maybe i am over looking something but would like some input or may some pics of this setup

[greatdane68]

I think that the CNT comes with an adapter so that you can bolt it to your stock convertor.

[MS3-a(sore)ASS-rex]

CNT requires an adapter.

I've personally installed the Corksport DP/RP combo, COBB DP, ATP full length DP and eBay DP to mate up with the stock CBE and had zero issues. Besides occasionally having to run to the hardware store

[Matt H.]

Originally Posted by Matt H. would like to do full 3 inch down pipe and have seen that the factory has donut gasket to the catback and alot of the full 3 inch mounting flanges are just a flat gasket style my question is if you get one is there a list of catbacks that will mate to this style properly or will i need an adapter similar to when you mount 3 inch to stock catback just made for 3 inch

Im not looking to put a full 3 inch downpipe on my stock exhaust doin the hole flippin thing
like stated above do you need a adapter or something similar to go on a 3 inch exhaust or do you simply put a flat gasket style cat back on will this have fitment ishues becuase there is not spring bolt or a donut gasket there this kind of gastet has a small gap between the flanges for the donut gasket it self sense i want to go full 3 inch will i simply need to buy the exhaust that is three inch flat flange will these be made to fit correctly to the flat flange of the downpipe without pulling on the exhaust

[mysleeper6]

^You sort of answered your own question...Get a downpipe of your choice, use either a donut gasket, or a flat gasket, depending on how the parts use choose fit together.


And a little punctuation would make it a lot easier to understand what you are saying.

[mglavina]

Just to add to the thread, ordered the ebay downpipe for $170 shipped. Not too bad, welds wern't the nicest but I got it cleaned up anyways. Waiting for catback to come in aswell as kmd internals.

before





after




Got it welded for free so not too bad for $170

[jrlms6]

Has anyone run Corksport DP/RP with Magnaflow CBE?

Wondering about the fitment considering, of course, 3" - 2.5"

[jeopardy98]

Corksport is 3" correct? I have an m2 dp and it is also 3". A muffler shop just welded in a piece of stainless 3" w/ a flange and it was all good.

[Stangcobra]

I hate to necro post a thread that was last posted in a month ago,but after doing a shitton of research, I have yet to find the answer to this
If I install a downpipe without an AP/Fuel Pump internals, will my car blow? or will the turbo just smoke. I've heard both online and would like a definitive answer

[breakfstincluded]

DONT

[jeopardy98]

Yes or no. It is a bad idea but there is no such thing as definitive with that decision. It's like playing russian roulette with only one empty chamber.

[Stangcobra]

Doesn't seem worth it then
Thanks yall

[chuckms6]

If you want to go fast you will need fuel pump internals at some point. It's just the nature of the beast.

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