[07Versa6MT]

Weapon-R

Most likely fits the tunnel of the Versa's, as you can see it's a really nice design. As we all know the MR20's are identical to the MR18's. Hopefully get more MR20 and MR18 development intermingling and what not. The Sentra guys have done quite a bit more for the MR motors.

 

[07Versa6MT]

I'd rather pay for a better overall design. You should see what Porsche race headers cost...

 

[07Versa6MT]

IMO to me the official MR18 header (s) out there are too similar to OEM for me to consider them as a performance piece, they still aren't equal length, and the only real improvement is in the collector.

 

[07Versa6MT]

HR16 will fit, that's what I ordered for my 1.8, same bolt pattern on the head, same diameter primaries, true 4-2-1 design.

 

[07Versa6MT]

Head bolt patterns are identical, that's why i got the OBX HR16 header, it has a better design, and the primaries haven't changed diameter to reflect the smaller displacement. As long as the bolt patterns are the same, the only thing that matters is chassis/tunnel shape and proximity to other stuff. I haven't even received the header yet so we will see if it's that easy. I am aware of the quality issues, this is just for performance experimentation. Then 2 1/2" straight pipe all the way back. They don't sound good straight piped... but it is what it is.