remove 2nd cats?
Thread Starter
Super Member
Joined: Oct 2009
Posts: 923
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From: Jacksonville, Florida
2006 E55 AMG --old cars -- E39 M5, 2.7tt Audi S4, E36 M3 **Ducati 996, 748
remove 2nd cats?
Do i really need them -- they are overkill -- my car runs super clean - so, I am not worried about smog --
I will lose some kgs but will i lose too much pressure -- will I lose my low end torque -- will i gain anything?
My friend has a guy who will do it cheap - So, i am considering it -- my car runs super strong as is -- with my mods - I am in the +600hp crank range.
So, I know from past threads this has been a questionable mod -- who has experience -- and more specific -- how will it effect a car with my mods -- small pulley - short headers - TB bore - tune - and those little things in my description.
I will lose some kgs but will i lose too much pressure -- will I lose my low end torque -- will i gain anything?
My friend has a guy who will do it cheap - So, i am considering it -- my car runs super strong as is -- with my mods - I am in the +600hp crank range.
So, I know from past threads this has been a questionable mod -- who has experience -- and more specific -- how will it effect a car with my mods -- small pulley - short headers - TB bore - tune - and those little things in my description.
MBWorld Fanatic!
Joined: Apr 2009
Posts: 1,582
Likes: 1
From: Lafayette, IN
2008 ML63 2009 SL63 2010 Alpha 7 GTR
Do i really need them -- they are overkill -- my car runs super clean - so, I am not worried about smog --
I will lose some kgs but will i lose too much pressure -- will I lose my low end torque -- will i gain anything?
My friend has a guy who will do it cheap - So, i am considering it -- my car runs super strong as is -- with my mods - I am in the +600hp crank range.
So, I know from past threads this has been a questionable mod -- who has experience -- and more specific -- how will it effect a car with my mods -- small pulley - short headers - TB bore - tune - and those little things in my description.
I will lose some kgs but will i lose too much pressure -- will I lose my low end torque -- will i gain anything?
My friend has a guy who will do it cheap - So, i am considering it -- my car runs super strong as is -- with my mods - I am in the +600hp crank range.
So, I know from past threads this has been a questionable mod -- who has experience -- and more specific -- how will it effect a car with my mods -- small pulley - short headers - TB bore - tune - and those little things in my description.
Thread Starter
Super Member
Joined: Oct 2009
Posts: 923
Likes: 0
From: Jacksonville, Florida
2006 E55 AMG --old cars -- E39 M5, 2.7tt Audi S4, E36 M3 **Ducati 996, 748
well - if i wont notice it -- than that means i wont notice any losses -- So, for the lost of weight and slight sound -- i may do it -- and possible hp or 2 i may gain
waiting for other feedback -- even if it is the same
waiting for other feedback -- even if it is the same
MBWorld Fanatic!
Joined: Apr 2008
Posts: 1,762
Likes: 1
From: Queens, NY
04 w211 E55
I just removed my secondary cats yesterday and put straight pipes. Definetly cant notice power loss or power gain using the butt dyno.
Thread Starter
Super Member
Joined: Oct 2009
Posts: 923
Likes: 0
From: Jacksonville, Florida
2006 E55 AMG --old cars -- E39 M5, 2.7tt Audi S4, E36 M3 **Ducati 996, 748
Racing cats are not cheap -- i think i rather just take a pair out... my friend has no cats -- maybe he lost some back pressure -- hard to tell because he makes so much power and did his mods at the same time.
