3" mid X pipe and race cat install..
Thread Starter
PLATINUM SPONSOR
Joined: Jun 2008
Posts: 3,834
Likes: 65
From: Texas
2003 CL55
3" mid X pipe and race cat install..
Planed to do long tubes and mid pipe at the same time but still unable to conform any that will fit my body style.. Want to Race the Texas mile in 5 weeks but must have headers to run full boost for 29 seconds.. Frustrated would be a kind word for the dilema..
Pulled the stock mid pipe and cats down and cut the top of the primary cat off, just wide enough so a 3" 45 deg bend would weld flush to it.. Front 02`s are still in their same small 2" pipe but then it goes right to 3", a pair of dynomax race cats and X pipe.. Stock manifold outlet opening is only 1.62ID, so until those are changed, power gains are only in the 15-17 hp range..
Stock city and hwy cruise is now quieter than stock (thank the X pipe) but damn it gets loud under boost..Sounds like a high RPM race car now.. Much louder than an E55 with only second cats/resonator removed too! Much louder.. I guess you could say it is the best of both worlds now.. I did leave my resonators on too.
Here are a few pictures.. This is a $145.00 3" Pypes tunnel mid X pipe and I added two race cats for 68.00 each.. Took some welding and cutting but should be easy for a decent muffler shop to do..
Pic of passenger side front 02 . This showes the wide area cut off the top of the cat with 3" pipe welded in place of stock cat. Race cats are horizontal under the car.
Pypes mid X with cats.. Don`t eye that custom pulley holder and cheater bar either..
Excuse the mud but had to go off-roading to get on the lift that day..
Pulled the stock mid pipe and cats down and cut the top of the primary cat off, just wide enough so a 3" 45 deg bend would weld flush to it.. Front 02`s are still in their same small 2" pipe but then it goes right to 3", a pair of dynomax race cats and X pipe.. Stock manifold outlet opening is only 1.62ID, so until those are changed, power gains are only in the 15-17 hp range..
Stock city and hwy cruise is now quieter than stock (thank the X pipe) but damn it gets loud under boost..Sounds like a high RPM race car now.. Much louder than an E55 with only second cats/resonator removed too! Much louder.. I guess you could say it is the best of both worlds now.. I did leave my resonators on too.
Here are a few pictures.. This is a $145.00 3" Pypes tunnel mid X pipe and I added two race cats for 68.00 each.. Took some welding and cutting but should be easy for a decent muffler shop to do..
Pic of passenger side front 02 . This showes the wide area cut off the top of the cat with 3" pipe welded in place of stock cat. Race cats are horizontal under the car.
Pypes mid X with cats.. Don`t eye that custom pulley holder and cheater bar either..
Excuse the mud but had to go off-roading to get on the lift that day..
__________________
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
Senior Member
Joined: Mar 2009
Posts: 394
Likes: 2
From: Knoxville, TN
E55, Supercharged Z4 (sold)
Where did you find race cats that cheap? Jegs has dynomax cats at around $132.99 3" in/out and 18" long. 2 way convertor although I don't know what that means yet.
MBWorld Fanatic!
Joined: Jan 2005
Posts: 4,276
Likes: 28
From: Bay Area
2015 E63S, 2018 E63S
Planed to do long tubes and mid pipe at the same time but still unable to conform any that will fit my body style.. Want to Race the Texas mile in 5 weeks but must have headers to run full boost for 29 seconds.. Frustrated would be a kind word for the dilema..
Pulled the stock mid pipe and cats down and cut the top of the primary cat off, just wide enough so a 3" 45 deg bend would weld flush to it.. Front 02`s are still in their same small 2" pipe but then it goes right to 3", a pair of dynomax race cats and X pipe.. Stock manifold outlet opening is only 1.62ID, so until those are changed, power gains are only in the 15-17 hp range..
Stock city and hwy cruise is now quieter than stock (thank the X pipe) but damn it gets loud under boost..Sounds like a high RPM race car now.. Much louder than an E55 with only second cats/resonator removed too! Much louder.. I guess you could say it is the best of both worlds now.. I did leave my resonators on too.
Here are a few pictures.. This is a $145.00 3" Pypes tunnel mid X pipe and I added two race cats for 68.00 each.. Took some welding and cutting but should be easy for a decent muffler shop to do..
Pic of passenger side front 02 . This showes the wide area cut off the top of the cat with 3" pipe welded in place of stock cat. Race cats are horizontal under the car.
Pypes mid X with cats.. Don`t eye that custom pulley holder and cheater bar either..
Excuse the mud but had to go off-roading to get on the lift that day..
Pulled the stock mid pipe and cats down and cut the top of the primary cat off, just wide enough so a 3" 45 deg bend would weld flush to it.. Front 02`s are still in their same small 2" pipe but then it goes right to 3", a pair of dynomax race cats and X pipe.. Stock manifold outlet opening is only 1.62ID, so until those are changed, power gains are only in the 15-17 hp range..
Stock city and hwy cruise is now quieter than stock (thank the X pipe) but damn it gets loud under boost..Sounds like a high RPM race car now.. Much louder than an E55 with only second cats/resonator removed too! Much louder.. I guess you could say it is the best of both worlds now.. I did leave my resonators on too.
Here are a few pictures.. This is a $145.00 3" Pypes tunnel mid X pipe and I added two race cats for 68.00 each.. Took some welding and cutting but should be easy for a decent muffler shop to do..
Pic of passenger side front 02 . This showes the wide area cut off the top of the cat with 3" pipe welded in place of stock cat. Race cats are horizontal under the car.
Pypes mid X with cats.. Don`t eye that custom pulley holder and cheater bar either..
Excuse the mud but had to go off-roading to get on the lift that day..
Thread Starter
PLATINUM SPONSOR
Joined: Jun 2008
Posts: 3,834
Likes: 65
From: Texas
2003 CL55
Is that a pre-fab mid section?
__________________
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
Last edited by Exotic-metal55; Feb 15, 2010 at 04:54 PM.
Thread Starter
PLATINUM SPONSOR
Joined: Jun 2008
Posts: 3,834
Likes: 65
From: Texas
2003 CL55
Thanks. No codes either and data log shows emmissions is in ready mode.
Here is the 3" mid X pipe I bought but found it cheaper on one of the catalog sites.. not sure how they can make it so cheap, even if they used China.. It is SS and tig welded X.. http://www.pysales.com/iwwida.pvx?;i...0%201?comp=ppe
Here is the 3" mid X pipe I bought but found it cheaper on one of the catalog sites.. not sure how they can make it so cheap, even if they used China.. It is SS and tig welded X.. http://www.pysales.com/iwwida.pvx?;i...0%201?comp=ppe
__________________
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
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Member
Joined: Sep 2009
Posts: 122
Likes: 0
From: Bartlett, IL
2006 E55 Designo 1991 190E 2.3 2000 BMW 740i 1987 PORSHCE 928S4
Thanks. No codes either and data log shows emmissions is in ready mode.
Here is the 3" mid X pipe I bought but found it cheaper on one of the catalog sites.. not sure how they can make it so cheap, even if they used China.. It is SS and tig welded X.. http://www.pysales.com/iwwida.pvx?;i...0%201?comp=ppe
Here is the 3" mid X pipe I bought but found it cheaper on one of the catalog sites.. not sure how they can make it so cheap, even if they used China.. It is SS and tig welded X.. http://www.pysales.com/iwwida.pvx?;i...0%201?comp=ppe
Whats the difference between 409 stainless and 304 polished stainless? Which ones better?
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MBWorld Fanatic!
Joined: Aug 2005
Posts: 3,466
Likes: 10
From: Southern Cali (Ontario)
I have a custom set up as well.. with 2.5" pipes and 2.5 X pipe in place of the resonator.
I deleted 2nd cats and kept the primary untouched.
I was going to do 3" pipes, but the whole system is bottled by the exhaust manifolds and also the pipes vary from 2.5" to 2.75" on various places.
Anybody know if moving the X pipe more to the front or more to the back makes a difference in sound??
For example..I deleted my 2nd cats.. and placed straight pipes... and removed my resonator and placed X pipe.
Should I have placed X pipe on the 2nd cats locations and leave straight pipes on the resonator location?
I deleted 2nd cats and kept the primary untouched.
I was going to do 3" pipes, but the whole system is bottled by the exhaust manifolds and also the pipes vary from 2.5" to 2.75" on various places.
Anybody know if moving the X pipe more to the front or more to the back makes a difference in sound??
For example..I deleted my 2nd cats.. and placed straight pipes... and removed my resonator and placed X pipe.
Should I have placed X pipe on the 2nd cats locations and leave straight pipes on the resonator location?
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Joined: Dec 2007
Posts: 1,461
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From: Treasure Island, FL
GLE 63S
Super Member
Joined: Apr 2011
Posts: 742
Likes: 1
2009 E63
1. no im not.
2. no is not my intention to revive old thread but if there is a question i seem to have i will ask
3.for your knowledge that is how i found the thread using the search function.
thanks for asking
