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Old 05-26-2002, 06:52 PM   #1
obyone
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Default Ok it's an exhaust question, but it's not what you think.

I know that "Which is the best exhaust" has been posted to death, but that's not my question. My question is, "If you were only going to replace one or two parts of your exhaust, which parts would yeild the most increase in power or the nicest rumble?"

What I consider replaceable parts are: header, cat, midpipe, and muffler. Feel free to mix and match, I'm looking for everyone's opinion here. (Or hard facts if you have em.)
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Old 05-26-2002, 07:12 PM   #2
Reciprocity
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A Borla header and a Borla can will give you the nicest rumble.

A full MRT system will (IMHO) give you the most power.

NC
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Old 05-26-2002, 08:50 PM   #3
obyone
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How about "most power for the least amount of added sound?"

Sleeper status is what I'm shooting for.
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Old 05-27-2002, 02:00 AM   #4
windfactory
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Default for me...

Borla header + Random Technology Cat. + GReddy cat-back.
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Old 05-27-2002, 11:02 AM   #5
trojan9x
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Quote:
Originally posted by obyone
How about "most power for the least amount of added sound?"

Sleeper status is what I'm shooting for.
from what i have heard, the MRT full system has nice power gains and a moderate increase in sound. nice low rumble but that's about it.
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Old 05-27-2002, 04:18 PM   #6
Reciprocity
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I'd say go with the MRT header and midpipe...but use the stock can, or the Subaru dealership can. They SHOULD (NOTE: They may NOT) mount dirrectly to the MRT midpipe. It LOOKS like they should, but I have never tried.

And if you really want to quiet that down, put a glass pack in the midpipe.

Quiet power is gonna require a little custom work.

NC
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Old 05-28-2002, 01:09 AM   #7
SoobATV
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once AGAIN, I will preach a Brullen stainless catback.
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Old 05-28-2002, 04:21 AM   #8
obyone
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Quote:
Originally posted by dcrawford
I'd say go with the MRT header and midpipe...but use the stock can, or the Subaru dealership can. They SHOULD (NOTE: They may NOT) mount dirrectly to the MRT midpipe. It LOOKS like they should, but I have never tried.

And if you really want to quiet that down, put a glass pack in the midpipe.

Quiet power is gonna require a little custom work.

NC
I thought the MRT exhaust only came in two parts: The header/cat, and the midpipe and muffler? From what I heard, they were not interchangable with other parts? But I may be wrong. Anyone know for sure?
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Old 05-28-2002, 07:14 AM   #9
trojan9x
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Default

it comes in 3 parts (there are pictures of it around somewhere in a not so old post)

first part is header/cat combo
2nd is midpipe
3rd is muffler.

the muffler is the only piece that can be interchanged with any muffler that would fit the stock exaust midpipe.
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Old 05-28-2002, 10:25 AM   #10
Julian
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Trojan speaks the truth. Save yourself the hassle and just get the entire MRT system. It is only moderately louder around town, very quiet on the freeway, but nice at WOT when you want the noise.
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Old 05-28-2002, 12:03 PM   #11
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Thread Hijack !

I've seen alot of posts about the MRT exhaust and how most complaints are around the fact that the system is Mild Steel. Is there anything that can be done to protect it slightly ?

You may now resume your normal posting..
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Old 05-28-2002, 05:15 PM   #12
GTBGUY
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Default FYI

For those looking to get the MRT, be very careful. I know of several people with their header-back that have had their cats destroyed under normal driving conditions. IIRC, there isn't a warranty with the MRT stuff.

If you're looking for something that'll last, and has a lifetime warranty, definately check into the Brullen/iON header-back system. You do get what you pay for in the end.
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Old 05-29-2002, 09:33 AM   #13
MY99 2.5GT
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Default

I aggree with GTBGUY. You get what you pay for. You just need to decide how much you want to get when you pay for it

It would be really silly to bolt the stock muffler section up to the MRT Headers/Cat/Midpipe. The whole point of a good exhaust is to allow the hot pulses to expand incrimentally as they travel through the exhaust going from small pipe sections to larger then larger. It would be really working against the expensive full exhaust that you just bought to put the stock 1.75" piped muffler section onto an otherwise smooth flowing 2.25" midpipe.

From the listens I have taken of the MRT it is not obnoxiously loud or intrusive. Borla/Random Tech/Stromung setups are like Growling Dogs. A very sweet raw power sound to it. I love it. Brullen Sounds like a well tuned Honda except a few octives lower (Not to be confused with those hondas that have coffee cans welded on and sound like a 5th grader playing the trombone). I really like the sound of both Borla and Brullen though distinctly different. I may change the MRT muffler out because it really doesn't sound very impressive. A little too quiet for me.

Brad
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Old 06-02-2002, 11:12 AM   #14
joltdudeuc
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I have stock exhuast manifolds/headers, stock midpipe, and Stromung Dual Tip to end it(which gets better as it ages and rusts! Little Pops on demand )

I was wanting to keep my stromung, and then hook up a MRT Header and Midpipe.

Questions:

1) Think it will fit?
2) I know the MRT header has only 1 cat (HiFlow at that). I live in California. I have to SMOG every other year. Will i pass the sniffer with one cat? How do you guys get around the fact that you have two cats stock with the O2 sensors? I'm guessing for some, there may be a CEL issue.

Thanx,

-Gagan
PS: Downloaded NC's clip of his MRT/Borla set up... UMMM, LOUD. A little too loud for my tastes dude. I think my stromung wouldn't get too loud. Right now it's realllllllly deep, and throaty, and above 5krpm it can be up there, but i won't get ticketed for it. Looks stock too. Either way, NC's setup sounds super mean, like his little RS has a monster under the hood. must be intimidating for other cars at the stoplight eh?
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Old 06-04-2002, 12:55 PM   #15
Julian
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1 - Yes, if it bolts to the stock mid-pipe, it'll bolt to the MRT system.

2 - I don't think anyone's smogged their car yet. Cali gives you a four-year exemption from the smog test for new cars now, and I've still got two years til I have to get mine smogged. I would imagine it would pass the sniffer, but it would obviously fail the visual. Cat issue aside, just the header design is obviously not OE, and without a CARB number, you can fail the visual.

Now, whether or not you WILL fail the visual depends on your smog person. I personally think the visual test is complete bull, and if the car passes the sniffer...but this thread isn't about that.

Keep your stock stuff. Once every two years, bolt it back on, suffer, and get the smog test done as quickly as possible. I used to do the same with my old Datsun 510, swapping carbs from my dual sidedrafts to the stock carb and emissions goo. Never ran worse than when it was saddled with the stock carb and air-injection "smog" pump.

JS
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