Catalytic Converter

[jetblack]

The owner before me replaced my MSP's stock exhaust with a straight-pipe no-cat exhaust with a flowmaster muffler. In addition to the extremely loud drone and exhaust note that I don't particularly like, the exhaust love to belch that black soot, which gets all over the rear bumper every time I get on it.

I'll be replacing the exhaust in the next week or two, and I want to put a single catalytic converter back on it to stop the black grime on my bumper. Because I know originally they had three, my question is is whether this cat fits the bill for only having one:

http://www.autocom.com/prod_1966466.html

 

[jetblack]

Bump. No one?

 

[KrayzieFox]

Yea that should work. And the stock setup had 2 cats, both in the midpipe, whereas the NA Proteges had 1 after the exhaust manifold and 1 in the midpipe. You'll want to place this in the midpipe and put the O2 sensor after it, so make sure to weld in a O2 bung as well if you dont already have one there.

Have you considered just buying a midpipe with a high-flow cat in it?

 

[yudkib]

unless you're gonna fab your own, its probably gonna be cheaper to get a production one with a cat.

 

[Wiesner12]

I ran 3" piping from the J pipe back, deleting both cats and the resinator, but going to the stock muffler. Doesn't smoke or cover my bumper.

 

[jetblack]

unless you're gonna fab your own, its probably gonna be cheaper to get a production one with a cat.

It's going to be fabricated with me supplying the cat and the muffler. There's a reliable muffler place here that said he'd do the piping and put everything together for $150, with another $30 or so if I wanted a chrome tip. I do want a nice sounding muffler along with the performance, but the one on it right now is neither. Flowmaster is trash in both sound and performance, IMO.

 

[jetblack]

I ran 3" piping from the J pipe back, deleting both cats and the resinator, but going to the stock muffler. Doesn't smoke or cover my bumper.

Any reason why I should be getting so much black crap on my bumper then? I know the MSP runs rich, but other than that I have no idea.

 

[Wiesner12]

Only thing that I can think of is that the flowmaster muffler might flow through more than the stock one, therefore not restricting the smoke/sute.

 

[KrayzieFox]

Hope it's not oil..

 

[yudkib]

sounds like carbon deposits. and is that 150 quote for the midpipe or everything up to the muffler?

 

[jetblack]

Hope it's not oil..

I'm fairly certain it isn't based on the consistency. I'll put some Seafoam in the fuel, which I had meant to do before. The quote was for piping along with putting on the muffler and cat that I had.