D15b7 & D16z6 intake manifold comparison

I had both next to each other and they look pretty similar.
Here's the differences:
Notice the thicker runners on the z6 IM
The D15b7 IM has P06 stamped on the back
The D16z6 IM has P08 stamped on the back
The Z6 IM ports are 42mm at the widest part.
The D15b7 IM ports are 40mm at the widest part.
Both manifolds have a 57mm throttle body opening
There are minor differences in the castings as well.
Now you know what to look for when buying a z6 IM to replace the more restrictive one on your dx/lx/vx/cx, so you won't get scammed

Here's the differences:



Notice the thicker runners on the z6 IM

The D15b7 IM has P06 stamped on the back

The D16z6 IM has P08 stamped on the back

The Z6 IM ports are 42mm at the widest part.

The D15b7 IM ports are 40mm at the widest part.

Both manifolds have a 57mm throttle body opening


There are minor differences in the castings as well.
Now you know what to look for when buying a z6 IM to replace the more restrictive one on your dx/lx/vx/cx, so you won't get scammed
