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      01-13-2020, 08:45 AM   #1
DeonRFi
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Talking Cheap Exhaust Mod for 750i

I bought a 2009 BMW750i recently and was very impressed with the car,but.... Yes there is a but, I found the car sound like my granny's old Toyota Corona from the 70's vintage. I looked at all the mods on the net but decided to take on the mod myself. All I did was to remove the 2 back exhaust boxes and put a pipe through each side splitting into a "Y" on each side so it looks standard from behind but it is not. I found the car more responsive and more economical and it sounds SOOOOOO GOOD!!!! I wander if this could cause damage to valves, CAT converters and so on? Anybody can comment, I will like to hear your ideas on this.
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Deon South Africa.
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      01-13-2020, 09:53 AM   #2
SYT_Shadow
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I doubt there is any difference in your fuel economy due to the change, but I'm pretty sure you have nothing to worry about. People run catless exhausts all the time
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      01-13-2020, 10:02 AM   #3
Salty Dog
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I know that removing catalytic converters is an offence here as they are part of the emission equipment.....that's not to say it doesn't happen.
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      01-14-2020, 05:22 AM   #4
DeonRFi
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Quote:
Originally Posted by SYT_Shadow View Post
I doubt there is any difference in your fuel economy due to the change, but I'm pretty sure you have nothing to worry about. People run catless exhausts all the time
Maybe it is less economical as one tend to drive the car a bit harder now to hear the sound
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      01-14-2020, 05:24 AM   #5
DeonRFi
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Quote:
Originally Posted by Salty Dog View Post
I know that removing catalytic converters is an offence here as they are part of the emission equipment.....that's not to say it doesn't happen.
In SA the laws does not matter because nobody care.....
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