Just a silly question but, if you put on a free flow exhaust system, doesn't that involve the exhaust being decatted at the same time? So opening up the exhaust's ability to breath by removing the cats is just one step towards gaining a free flow of exhaust gasses, isn't it? Which must mean that you gain more from a free flow exhaust than just removing the cats, surely.?
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Read the WELCOME ALL BMWFANATICS post.
Decat or Freeflow???
- Thread starter E46arc
- Start date
Bemused said:
IF the exhaust guy knows what he is doing yes you will gain more form a full system, but on a lot of cars a decat gives almost the same gain for way less money
Nope, safe to say everyone loves their decatted car. If your not a fan of the tinny sound like the m3 then just replace the cats with resonators instead of straight pipes.
Smartiesman
///Member
Smartiesman said:
:fencelook:
Smartiesman said:
there will be no cats :rollsmile:
Smartiesman
///Member
moranor@axis said:
:roflol::flyfun::roflol:
Smartiesman seriously though are you asking about your car? i can find you some pics if you like
Smartiesman
///Member
moranor@axis said:Smartiesman seriously though are you asking about your car? i can find you some pics if you like
Finally.......thought i was in the vw forum........
Yes, I bought my car last year and i need to know if it is done or not because if it is not, i am going tomo morning to get it done after the Auto Glaze.
look down the turbo side of the engine with a torch if you can see this:
thats the cat on your car...
they see if its been cut open and welded shut or if its been replaced with a pipe...
thats the cat on your car...
they see if its been cut open and welded shut or if its been replaced with a pipe...
slide underneath you car and check underneath the front seats
They look like this:
Then there are ones in the headers sometime as well. Gonna be harder to spot. Left has Cat right doesn't:
If you just see welded pipes then you know its removed
They look like this:
Then there are ones in the headers sometime as well. Gonna be harder to spot. Left has Cat right doesn't:
If you just see welded pipes then you know its removed
ChrisBrand itas a 320d :fencelook: but those pics will help the petrol guys
So Diesels don't have cats in the exhaust? My bad
Smartiesman
///Member
moranor@axis said:look down the turbo side of the engine with a torch if you can see this:
thats the cat on your car...
they see if its been cut open and welded shut or if its been replaced with a pipe...
Thank you very much dude....
raise:raise:raise::ty::ty::ty:Smartiesman said:moranor@axis said:look down the turbo side of the engine with a torch if you can see this:
thats the cat on your car...
they see if its been cut open and welded shut or if its been replaced with a pipe...
Thank you very much dude....
i know my car has had the software upgraded and remaped by the previous owner.
Its got a lot more torque compared to a std 320d which i test drove the other day. If removing cat can give me more.....i would be :joy::joy::joy::joy:
and then of to get a Dyno done
