bmw m4 mpe fitment

[dodospor]

hey guys , i need help so i have vrsf 3.5 midpipe and recently bought used mpe muffler only no mpe midpipe or connection pipe , i didnt know it wont fit , is there anyway i can fabricate the connection pipe to make it work. if someone could help me i would really appreciate it , also if anyone make these custom pipes let me know. i will attach a pic about what im talking about .

thank you

[LOW4LYF]

You need to MPE midpipe

[Andrae26]

Originally Posted by LOW4LYF

You need to MPE midpipe

Wow. Did the seller tell you it will work? Don't buy an MPE muffler without the midpipe.

[BzsBimmer]

Yeah with the hassle of finding a really good fabricator and cutting/welding Ti... you’re probably better off just getting the midpipe and connector kit.

See if someone has a midpipe for sale from a damaged V1.

[LVI]

Any exhaust shop should be able to fabricate those.

[dodospor]

Originally Posted by Andrae26

Wow. Did the seller tell you it will work? Don't buy an MPE muffler without the midpipe.

he wasnt sure actually , but it was my fault that i didnt do my research before i buy it

[Andrae26]

Originally Posted by androwdokman

he wasnt sure actually , but it was my fault that i didnt do my research before i buy it

Forum member? Sorry to see you're in this situation . Best of luck.

[LOW4LYF]

Originally Posted by lawrence1

Any exhaust shop should be able to fabricate those.

Not so easy, the valve's sitting in the midpipe on the MPE.

[jmg]

Originally Posted by LOW4LYF

Not so easy, the valve's sitting in the midpipe on the MPE.

What about just getting something like an AA midpipe? Seems like a popular combination: MPE + AA midpipe... or do you still need a section of the original MPE midpipe to bolt to?

[dodospor]

Originally Posted by jmg

What about just getting something like an AA midpipe? Seems like a popular combination: MPE + AA midpipe... or do you still need a section of the original MPE midpipe to bolt to?

yes i still need the section. but i dont know if someone can fabricate it

[ntg44]

Originally Posted by androwdokman

yes i still need the section. but i dont know if someone can fabricate it

The exhaust was fabricated to begin with, so of course something can be fabricated to clamp on. Integrating valves will be another story, but it isn't that difficult assuming you can source the valves. It's not going to be cheap though with all the valve hardware and custom brackets for the actuators. The way I see it, the easiest options are:

- Sell the muffler and get a different axle back exhaust. There are plenty of people out there with cracked V1 MPEs who would probably be willing to buy a new rear muffler section and swap it out for the right price, assuming yours isn't a cracked V1 that has been repaired already.

- Go to a fabricator to make a connection section to the mid pipe and muffler, but keep the exhaust passive without valves. It's going to be fricken loud, but at least you have an exhaust out of it. If you want the valves to work you're going to pay significantly more for the valves + bracket fab. Buying an extra stock muffler for ~$300 to cut out the valves with brackets may also be an option, assuming your fabricator would be OK with cutting & welding those in. I would ask first before buying one.

Those are the 2 cheapest options I can think of to get you out of this. Personally, I'd just sell the MPE muffler for cheap and find something else. Midpipe sounds just fine with stock muffler until you find a buyer for the muffler and find a new axle back.

[BzsBimmer]

^ this.
Exact issue I ran into when I tried to custom fab a midpipe for my MPE when I bought the muffler only.

I went to a really good fabrication shop that did work with Ti and the amount of custom work that had to be done just made it cost prohibitive.

I ended up just buying the midpipe and connecting pieces from Brit (shameless plug for bmwpartpros) and called it a day.