4.4 to a 4.6is motor, oh what a thing.

[Plattus1000]

Originally Posted by bcredliner

Great looking headers.

I feel like if anyone could capitalize from these BCredliner, you might be that guy.

They are beautiful. Like Grieger art.
4 -2 -1 (Tri-Y) modular design*

True equal length runners*

Full T304 Stainless Steel construction 100% Mandrel bent tubing*

TIG welding, fully back purged w/ Argon Solar Flux type B in cases where back purging is not applicable*

Laser cut exhaust port flanges*

Oversized exhaust ports to accommodate ported cylinder heads*

3” V-band flange exit pipe*

Profiled merge collectors*

Double-slip joints w/ stainless steel spring clamps*

Tuned stepping*

Removal of front subframe not required for installation*

100% of raw materials & supplies sourced from USA manufacturers.*

Mandrel bending, welding and fabrication services provided by USA vendors.

[bcredliner]

Originally Posted by Plattus1000

I feel like if anyone could capitalize from these BCredliner, you might be that guy.

They are beautiful. Like Grieger art.
4 -2 -1 (Tri-Y) modular design*

True equal length runners*

Full T304 Stainless Steel construction 100% Mandrel bent tubing*

TIG welding, fully back purged w/ Argon Solar Flux type B in cases where back purging is not applicable*

Laser cut exhaust port flanges*

Oversized exhaust ports to accommodate ported cylinder heads*

3” V-band flange exit pipe*



Profiled merge collectors*

Double-slip joints w/ stainless steel spring clamps*

Tuned stepping*

Removal of front subframe not required for installation*

100% of raw materials & supplies sourced from USA manufacturers.*

Mandrel bending, welding and fabrication services provided by USA vendors.

Who is the mfg?

[Plattus1000]

Originally Posted by bcredliner

Who is the mfg?

Einhorn Industries

[TiAgX5]

Equal length Tri-Ys and dumps?

Brian could charge admission to hear the exhaust sound!

[bcredliner]

Originally Posted by Plattus1000

Einhorn Industries

I didn't find anything specifically for X5. I assume they wouldn't fit without modification?

[Plattus1000]

Originally Posted by bcredliner

I didn't find anything specifically for X5. I assume they wouldn't fit without modification?

Yes but the tiniest modification. Just a steeper bend on the back of the primary collectors. You can mate these up to your existing exhaust at the cats. He's (Jed) said he'd build the adapter tube if he had enough interest but he added, "any exhaust shop could do it easily"

Admission, probably. I'd pay to see that.

[Plattus1000]

If anyone thinks that bmw didn't half-ass the exhaust manifold on the 4.6is, check this garbage out. Anything would be better.

[jopecasa]

What the.....?

That's just so wrong!

I wonder if my X5 has the same?

[X53Jay4.8is]

Originally Posted by Plattus1000

If anyone thinks that bmw didn't half-ass the exhaust manifold on the 4.6is, check this garbage out. Anything would be better.

I would imagine that a BMW Exhaust engineer would have a logical explanation as to why they went with that exhaust manifold configuration. There are reasons.

[Plattus1000]

They didn't want us to have too much fun, that's the reason. Everything about the 4.6is was for torque and power but this... This is garbage and I give less than 2 shakes what the reason was. This is deplorable for flow.

Jopecasa--- If you have a 4.6is, this is what's holding you back.