Downpipe for the Mp3 by Protosport.

[PaulMP3]

So are you guys saying that the msp 1st cat location is identicle to the mp3's???


also i notice that their primary 02 is in their DP where our are in the mani..

 

[1sty]

you need a wagner mid pipe. 2.5"

Not for there redicoulus price!

 

[Dr.Sound]

So are you guys saying that the msp 1st cat location is identicle to the mp3's???

no, not at all, both of MSp's cat's are on the downpipe

 

[1sty]

So are you guys saying that the msp 1st cat location is identicle to the mp3's???

NO both MSP cats are inline on the exhuast where as our first one is infront of the engine not under it.

 

[Dr.Sound]

^ yeah, what he said

 

[PaulMP3]

gotcha, i was getting confused. The mid pipe is pricey..


craig that pic you posted was from your car, not the msp. correct? I think thats why i was confused about their 1st cat location.

im still confused on how that would fit a mp3.. i will have to go out to the garage and check out my old midpipe/dp.

 

[1sty]

These are Spicy's pics of the MSP exhuast and new down pipe:

You'll notice the cats are inline one right after the other and the 90 degree elbo procedes them.



On all other cars the 1st cat comes before the 90 degree elbow, seen here in one of FP's pics. Ignore the large black pipe that is the Flyin Protege down pipe from the turbo for there kit.

Also you will otice our midpipe has only one cat:

To bolt up for the other cars Steph the replacement pipe must go up to where the 1st cat is and have a 5 bolt pattern to match up to the Manifold.

 

[1sty]

gotcha, i was getting confused. The mid pipe is pricey..


craig that pic you posted was from your car, not the msp. correct? I think thats why i was confused about their 1st cat location.

im still confused on how that would fit a mp3.. i will have to go out to the garage and check out my old midpipe/dp.

This would fit the MP3 but only to the outlet of our 1st cat. It would not bolt up to the manifold.

 

[SpicyMSP]

Yes It will fit the Mp3! thanks 1rsty. You were correct. It will fit, and it bolts on after the 1rst cat.

 

[PaulMP3]

This would fit the MP3 but only to the outlet of our 1st cat. It would not bolt up to the manifold.

ahh ha... now i getting. thanks for clearing this up for me. Although it has been said that our first cat is a bigg power theif, so it would be benificial to get rid of that cat while your at it.

 

[1sty]

I don't see much of a point in getting rid of anything else unless you get rid of that cat.

 

[TXMazdaSpeeder]

so is there any benifit to deleting the second cat?

 

[tonkabui]

think of it this way... you have two 2-liter bottles connected at the mouth. the bottoms are cut off. pour water into the upper bottle and watch what happens. the mouths of the bottles connected to each other is like the first cat. you can increase the flow on the intake side all you want, and you can do the same for the exhaust side. but what's happening is a major bottleneck at the joint and no matter what you do to the ends, your middle section won't allow for any more water to go through than it's capable of. that joint is where the restriction occurs. remove the first cat (or replace it with a hi flow), increase the diameter of the downpipe, open up the midpipe, remove or hiflow the second cat, then all of a sudden, it's like removing the bottleneck altogether. then the only thing left out of the equation is the velocity of the water. this is where a 4-2-1 header or a shorty header, or whatever comes in handy. it will maximize the exiting gas' velocity, increasing flow. so there you have it.

 

[Dr.Sound]

plain and simple, thank you truc

 

[TXMazdaSpeeder]

a friend pointed this out to me, would this not be a test pipe rather than a downpipe? i mean considering n/a cars dont have downpipes.

 

[1sty]

Your very correct.