X pipe reccomendations...
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
X pipe reccomendations...
Can anyone recommend a 3 inch X pipe for a 1990 L98 with an auto.
I have been searching the web for a week. I'm having a bitch of a time finding one.
They range from $90 to $300 and none seem to fit the way I need it to fit.
I have a Power Effects cat back system.
I'm going from headers, to a cat, to an X pipe, to the cat back.
I have been searching the web for a week. I'm having a bitch of a time finding one.
They range from $90 to $300 and none seem to fit the way I need it to fit.
I have a Power Effects cat back system.
I'm going from headers, to a cat, to an X pipe, to the cat back.
Team Owner
Joined: Aug 2000
Posts: 40,156
Likes: 45
From: San Pedro CA
that won't work.
an xpipe is not an addition... it's a function.
visualize this:
the engine has two banks.
two headers, one on each side, draw the gasses out.
these gasses go down individual pipes to the mufflers at the back.
done.
easy.
now, you are losing power.
sad.
the xpipe is used to join the two sides together. as the gasses from the left cross over, they set up a vacuum that increases the scavaging power of the right side.
with a single central cat, you have negated any benefit of the xpipe.
rethink the exhaust system.
an xpipe is not an addition... it's a function.
visualize this:
the engine has two banks.
two headers, one on each side, draw the gasses out.
these gasses go down individual pipes to the mufflers at the back.
done.
easy.
now, you are losing power.
sad.
the xpipe is used to join the two sides together. as the gasses from the left cross over, they set up a vacuum that increases the scavaging power of the right side.
with a single central cat, you have negated any benefit of the xpipe.
rethink the exhaust system.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 33
From: The Top of Utah
Originally Posted by jsup
I'm going from headers, to a cat, to an X pipe, to the cat back.
You can make an X pipe from a pair of stock 90° bends, a whole bunch cheaper that you mentioned.
RACE ON!!!
Thread Starter
Team Owner
Joined: Oct 2004
Posts: 35,065
Likes: 0
From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
that won't work.
an xpipe is not an addition... it's a function.
visualize this:
the engine has two banks.
two headers, one on each side, draw the gasses out.
these gasses go down individual pipes to the mufflers at the back.
done.
easy.
now, you are losing power.
sad.
the xpipe is used to join the two sides together. as the gasses from the left cross over, they set up a vacuum that increases the scavaging power of the right side.
with a single central cat, you have negated any benefit of the xpipe.
rethink the exhaust system.
an xpipe is not an addition... it's a function.
visualize this:
the engine has two banks.
two headers, one on each side, draw the gasses out.
these gasses go down individual pipes to the mufflers at the back.
done.
easy.
now, you are losing power.
sad.
the xpipe is used to join the two sides together. as the gasses from the left cross over, they set up a vacuum that increases the scavaging power of the right side.
with a single central cat, you have negated any benefit of the xpipe.
rethink the exhaust system.
I will have two headers, each with it's own high flow 3 inch cat. So that's 2 catalytics.
The cats will flow into the X pipe.
The X pipe will go into my power effects system which is now set up as true dual, I removed the Y pipe that went into the cat.
Sorry to make you write so much because of my bad description.
Instructor
Joined: Apr 2005
Posts: 228
Likes: 0
From: Göteborg
Race Director
Joined: Oct 2001
Posts: 19,653
Likes: 428
From: Melbourne Florida
Cruise-In IV Veteran
The man is correct...I went to a local hot rod shop and they fabbed up an X-Pipe and installed it for $100 out the door...
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Racer
Joined: Apr 2006
Posts: 405
Likes: 1
From: Twinsburg OH
I got a nice looking stainless one off EBay for about $40, it looks just like the magnaflow ones. I have not put it on yet so all I can say about it is it looks pretty. I did a quick search and could not find another but they may come back up again.
