Exhaust question

nelgyarg

nelgyarg

Well-known member
Jul 29, 2007
49
0
58
Connecticut, U.S.A.
Hello,
I am a new owner of a 2000 discovery, and I was wondering if there were any suggestions about how to free up what looks like the most ridiculous exhaust system I have ever seen.
My vehicle will be predominantly a pavement queen, and must remain 50 state legal.
Thank you in advance for your time and consideration.

ps - please feel free to tell me the error in my ways, if I am missing some mechanical wizardry in that weird assed exhaust.
 
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DevilDisco

Well-known member
Aug 3, 2006
160
0
Swansboro, NC
If its just the two can's bugging you, cut one off or buy a Borla, like I did. Lifetime warranty. See Rover Connection or Borla website. You want one for a DII. Can be found cheaper if you hunt on-line and you can bolt it up yourself.
 
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roverflip

Well-known member
Jul 15, 2007
89
0
Louisville, KY
jpgarcia.us
Sorry to hijack the post, but DevilDisco, do you have the cat back system or a std stock replacement (maybe this doesn't exist, I'm not sure)? Did you notice any increased MPG? I was thinking about getting one myself.
 
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Azdiscovery

Guest
Im sure he's talking about the lego blockish stock headers. If you are I believe that headman makes a set and can be found on summit.

Yes the stock exhaust probably increases torque because of its back-limiting design but.... god damn a 3 year old with a bunch of lincoln logs could have made something more asthetically pleasing (if thats what youre going for)
 
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DevilDisco

Well-known member
Aug 3, 2006
160
0
Swansboro, NC
roverflip said:
Sorry to hijack the post, but DevilDisco, do you have the cat back system or a std stock replacement (maybe this doesn't exist, I'm not sure)? Did you notice any increased MPG? I was thinking about getting one myself.
Click to expand...

I've got the Borla Cat Back System. :cool:

As for gas. Not sure still stomping on it.:D But with the dreaded K&N Air Filter its definitely more peppy.

As for mileage.
I'll let you know when I fill up, but I had a really good romp during lunch so that might affect things.

I think the ECU just got used to the Exhaust. My commute normally nets me 14.5mpg for the week. It looks like it will be better this week. Hoping for 15-16mpg for the commute mixed city/highway would be good.
 
nelgyarg

nelgyarg

Well-known member
Jul 29, 2007
49
0
58
Connecticut, U.S.A.
Thank you for your responses,
My question isnt a matter of aethetics, its a question of why the drivers side has a resonator, and the passengers side gets a cat, THEN they merge!, not to mention the manifolds themselves are about the size of a decent coffee stirrer.
My plan is to have mandrel bent tubing meet at a single high flow cat, and to find suitable high-flow mufflers to place in the stock locations.
As far as the manifolds are concerned, if I cant find a reputable manufacturer of ceramic coated "shorty" headers, I will probably buy a set of "stockers" off Ebay, and mill them out (gasket-match) on my own.
If this strikes any of you as sacrilidge, speak soon. :)
 
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barefoot

Guest
nelgyarg said:
why the drivers side has a resonator, and the passengers side gets a cat, THEN they merge!,
Click to expand...

one of them may be shaped funny......but they are both cats!

enjoy!
 
nelgyarg

nelgyarg

Well-known member
Jul 29, 2007
49
0
58
Connecticut, U.S.A.
leave it to me to not recognize the soup can as a cat!
can anyone give me a rational explaination as to why they have two radicaly different cats?
How on Earth do they regulate the pressure differences?
that all being said, is my idea even feasable?
I may always love this truck, but I'm starting to hear laughter in the back of my brain!
 
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VegasRover

Guest
Do they make a header system for DII's?

and I have the Borla as well and its great. I dont dig the Magnaflow that much due to the fact that it makes the truck sound like a massive F-150, but the Borla gives it a very nice rumble :)
 
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