Does my car have a chip and decat

[Kisho135i]

How do you know if your your car has chip and decat exhaust. Bought my 335i scond hand 2008, took it to 270km with ease, arent they governed to 250km. plus the exhaust has a nice sound to it and its standard. Advice?

 

[Dmonic1]

Stock 335i's should go to 270 on the Speedo (with relative ease also), i did 253kph on my GPS (270kph) on clock.... Car is 100% stock

 

[anile8-zn]

what colour is it and where did u buy?

 

[Kisho135i]

bought in jhb-white

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It was going more then i stoped?

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ya probably is stock, was just checking the 270 story

 

[anile8-zn]

white coupe or sedan?
did u buy from forsdicks?

 

[Kisho135i]

coupe, who is forsdicks? No, whats up with the q's

 

[anile8-zn]

i sold my white sedan 335i with frc in it:clap:. so whoever bought it got free sw

 

[Kisho135i]

anile what was the chancers that i bought it lol

 

[anile8-zn]

slim bru , but when u said white , i thought there was a chance:thumbsup:

 

[Kisho135i]

i had a 135i stock and my 335i feels faster. is there nothing i can check for decat and ecu tell tale signs

 

[anile8-zn]

rev limit?
check to see if the exhasut flap actuator has been open permanently
normaly u will see smoke and feel pressure from both sides on startup.
that could account for the sound?

maybe get your car on a ramp and check it out

 

[Kisho135i]

I do get pressure for both size. what does that mean?

 

[anile8-zn]

well when the car is warm its normal
but if u start it from cold and it does that , it means the previous owner , did one of the following
1. he unplugged the solenoid
2.he cable tied the vaccum line to the actuator
3.he put a golf tee in the vaccum line

just check under the back bumper on the left hand exhaust pipe

 

[Kisho135i]

will do. is it a bad thing or what

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Not a 100% sure it does that, will check when i get home. Do all ecu cars rev past what?

 

[Twinz]

Ramp it up to check for decat & the rest i agree with the advice from Anile and NO it is not a bad thing to have the actuator open all the time or the golf T - enjoy the new sound. However if the actuator is unplugged it will throw a code which will only go away if you delete the code an plug the actuator back in...

 

[Kisho135i]

i dont what where to look, i know its the removal of the catalistic converters but where on the exhaust are they

 

[anile8-zn]

no problem really with exhasut flap being open
i had mine like that

 

[Kisho135i]

I wann know does my car have ecu because if it dont, i will prob wanna do it. It just feels so much more quicker than my 135

 

[anile8-zn]

put it on the dyno

 

[Twinz]

i dont what where to look, i know its the removal of the catalistic converters but where on the exhaust are they

Kisho, sorry for pointing you to one of my own threads but i think you will find it helpfull to understand the exhaust system and its components...here it is

http://www.bmwfanatics.co.za/showthread.php?tid=1375