How To: 2.0 Header Installation

[96superneon]

WOW just put on the obx header!! man was that a job. great write up. everything was going great till i started putting it on, didnt line up well at all. but its done and sounds great! my exhaust tip is hitting my bumper now (uhm) guess i'll need to rehang the exhaust.

 

[mx-p5]

Yeah, OBX sets the front of the exhaust a bit lower causing the rear of the exhaust to set higher. Caused my magnaflow on my Pro5 to rub the bumper as well. Take teh car to an exhaust shop and they should be able to heat the hangers and bend em down in 5 minutes for cheap and problem solved!

Reset the ECU and wait for it to relearn the new airflow and enjoy the new HP and torque!

 

[Prodigy]

Just pop off the exhaust hangers and bend the rods down with a box-end wrench.

 

[mrlilguy157]

aric is a qt.

 

[hawaiianice99]

Are the F2 header for the mz3 2.0L and 2.3L the same part, or are they different headers all together?

 

[jeg0024]

Couldn't tell ya...

this is for the 2.0 FSDE

 

[hawaiianice99]

maybe that is why i have been second guessing myself, i was refrencing off this "how-to."

dope, dumb me.(hand)

 

[jeg0024]

lol, its cool bro.

 

[oneslowp5]

any body have a hard time reinstalling the EGR tube on there header any advice on how to

 

[nate0123]

how far off is it? you could try carefully bending it with a pipe wrench (without crimping it)

 

[njaremka]

try connecting the egr tube BEFORE bolting the header to the head. that made it easier for me.

 

[mx-p5]

try connecting the egr tube BEFORE bolting the header to the head. that made it easier for me.

x2

 

[MazdaSpeeder]

I had to use a butane torch and a bar to force it into place. When I connected it before attaching the header, I couldn't get the header over the studs.

 

[njaremka]

oh, you should remove the bracket that holds the tube to the head, too. allows a lot more wiggle room.

 

[oneslowp5]

the tube is real close but the nut that hold the tube on starts to cross thread when i try to tighten it. Can you block that tube off with out setting off any check engine lights I know on the older cars you can

 

[i12drivemyMP5]

header on the studs, loosen tube clamp, thread connection to header, bolt header to engine, tighten tube clamp, connect exhaust.

 

[br289165]

If you do it correctly it won't be difficult.
1st. header on studs tighten 2 studs so header is flush w/ head.
2nd. remove bolt on EGR tube to block (10 mm socket w/ long extension)
3rd. align EGR tube end to EGR header threaded mount as best as possible, (just the flared tube end, leave the EGR nut back).
4th. use a pry bar between the EGR tube and the block to align precisely.
5th. pull on pry bar as necessary with right hand while aligning then tightening EGR nut to the header.Once the nut turns freely tighten until it wont turn any more (make sure threads are clean). There should be no need for bending anything or heating anything or forcing anything, believe me I've done it many times,use patience and it will be right.

header on the studs, loosen tube clamp, thread connection to header, bolt header to engine, tighten tube clamp, connect exhaust.

 

[xDJ DUBx]

Can't wait to install my header, ah I need money!

 

[mx-p5]

Just reinstalled a header. lol

Went from stock to obx to stock and now to Ractive

OBX:

And now Ractive Long Tube

 

[mazda3rev]

hey does anyone know where i can find some cams for the 2.0L or if they have them out yet because finding performance parts for this engine is really difficult. if anyone can help me out it would be great