[Dereli]

I have spoken with a Chinese supplier of down pipes and now I am confused, they say that for my 2012 335i there has to be a little piece of flex tube on the down pipe? Please see attached photos.

I mean the down pipe has to be whit out flex tubing?

Is there someone there can help me here.

Is it picture no 1 or 2?

[TypeOne]

I believe the difference in the images you posted are PWG vs EWG cars perhaps. I know the downpipe for my 2014 is not the same as the 2012-13 cars. Not to mention that most Chinese suppliers like that just steal images from people. What you see in the picture may not be what you actually need.

Maybe you contact a legit supplier like ER or VRSF and get one that is specific to your car and engine. :-/

[Dereli]

Do you know what type of waste gate 2012 is equipped with?

[Paul_M3]

the correct downpipe for you is the bottom image. The difference in downpipes is only that 7/2013 and earlier are 3.5 inch and anything newer is 4 inch. VRSF is a great company for a solid price, plus it comes ceramic coated.. dont go with a random chinese supplier!!!!

[Paul_M3]

Originally Posted by Dereli

Do you know what type of waste gate 2012 is equipped with?

PWG, this is good to know for what kind of JB4 u need also if you plan to get one

[Dereli]

I do plan to get JB4 as well.


I think nearly all down pipes are produced in China anyway, but maybe I will make my own as I am stainless steel fabricator and welder.

Thanks for all your help so far.

[Paul_M3]

Originally Posted by Dereli

I do plan to get JB4 as well.


I think nearly all down pipes are produced in China anyway, but maybe I will make my own as I am stainless steel fabricator and welder.

Thanks for all your help so far.

oh thats awesome! a fun project, but yes you'll need a PWG JB4, oh man does the car change!

[Dereli]

That's also what I have heard about the car.

Yes it could be a fun project to make my own down pipe.

Thanks for your help.

[mike@x-ph.com]

Originally Posted by Dereli

I do plan to get JB4 as well.


I think nearly all down pipes are produced in China anyway, but maybe I will make my own as I am stainless steel fabricator and welder.

Thanks for all your help so far.

Thats not true, good luck on your project

[Jeff@TopGearSolutions]

All downpipes are definitely NOT produced in China.

There is a difference between 7/13 and earlier cars compared to 2014+ downpipes.

The flex section is not necessary with the aftermarket downpipes.

[benolium]

Originally Posted by 335_paul

the correct downpipe for you is the bottom image. The difference in downpipes is only that 7/2013 and earlier are 3.5 inch and anything newer is 4 inch. VRSF is a great company for a solid price, plus it comes ceramic coated.. dont go with a random chinese supplier!!!!

Not sure how accurate that is. I have a build date of 10/12 and i need the 4" one without the flex tubing. I found out the hard way and VRSF shipped the 3.5 and it was clearly too long. Any one else have this same issue?

[mike@x-ph.com]

Originally Posted by benolium

Not sure how accurate that is. I have a build date of 10/12 and i need the 4" one without the flex tubing. I found out the hard way and VRSF shipped the 3.5 and it was clearly too long. Any one else have this same issue?

for 99% of the cars
pre 07/13 is 3.5" with the flex section
post 07/13 is the 4.0" DP

You always have 1% of the car which do not follow the rules above, unfortunately you were one of the unlucky customers

We encounter this problems with tunes as well