Weapon-R Header (4-2-1)

[CASTREX]

I exchange some e-mails with Leo from Weapon-R about the production of a 4-2-1 design Header for the Yaris. He heard about the not great results of the Megan header and he is interested in offering us an alternative for our cars.

Here's the thing... he needs a OEM header to work the design and the fitting of the new one. So is anyone of you guys who bought the Megan header, willing to offer the original unit to Weapon -R?
(Weapon -R shop is located in the Bay Area.)


This new header should be pretty close to the one they offer for the scion Xb, which showed important gains on the dyno runs.

Come on guys... any volunteer?

[dngz]

if i ship my oem header, will i get a 4-2-1 header back?

[eco]

Are they promissing some improvment,I still have my header,I would be willing for a 75% discount and free shipping on theyre header.

[PetersRedYaris]

Doesn't Weapon-r need a whole car so they can test it when their done? I wouldn't buy a header that was just build to replace the origional but has never been tested. If I was nearby they could have mine for a week.

[Yaris TTE JWRC]

Doesn't Weapon-r need a whole car so they can test it when their done? I wouldn't buy a header that was just build to replace the origional but has never been tested. If I was nearby they could have mine for a week.

I agree, i had an Weapon R short ram intake for my old Echo before i went for the TRD CAI, the Instruction were chessy with poor photo, and doesnt even match the product, i had a hard time installed and was never installed properly due to the chessy product, i will never buy another Weapon R product again. Im not sure but I think Weapon R is an American Company that clan its from Japan. Button line is, Weapon R's are no good:thumbdown:

[tca4]

wow is it that bad? hmm they SEEMS to make good products thou, well i guess im wrong? and someone need to test the header to see how much gain there is

[Katana]

I have heard nothing else but good stuff for this company.So guys, you should try it out.

[hasher22]

heres the time for someone to give up their header and u might get a free/very generous discount for the new header.

Though people who give up their stocked header, wouldnt they have the megan header already? BLEH! :)

[CASTREX]

They need the car to prove the header that's right. But once the header is done, that should be an easy task taking them no more that a couple of hours to do the dyno runs.

I had the chance to look a couple of WR headers for other cars and look great.

If you are interested please contact Leo. Go into the WR website and there you can find his e-mail.

[Galavoxx]

WTF? I would suggest that none of you take your car in for a header fitting because according to Leo, they already have a header in production. I know because I already had my car in there for a header fitting and at the time, they said they had a "prototype". This "prototype" turned out to be nothing more than an xB header that they were hoping would just fit the Yaris. Of course it didn't fit so they supposedly fabbed a proper header and sent the part off to china or japan or wherever their parts are mass produced. So I don't know why they want your car. The header is supposed to be done some time in mid Feb. I talked to them as recently as 2 weeks ago and they confirmed this. If you take your car in there, they are most likely going to just try and fab other items for it, like a rear strut bar, or seat brackets, which is what was happening to mine when I went to pick it up from the "header fab". Or maybe they will bend your rocker panel because they don't know how to jack the car up properly. Anyway, I'm not saying their header isn't going to work, but I have heard good and bad things about Weapon since taking my car there. One thing, the intake works well, I have one. It is a shorter intake but not a shorty ram, more like a medium ram with the filter pointing down into the same place the CAIs go. It works, it makes good power. As to the business practices of Weapon, I really don't understand why they wouldn't just tell you strainght up why they want your car. Maybe their factory was unable to produce a bolt on header in the 4-2-1 format and they need to figure it out. Who knows. If you really want to find out, just ask Leo what happened with the last header fab on Randy's car. I was in there three times.

[CASTREX]

Here's what Leo told me...

From Leo Weapon R: leo.now@weapon-r.com

"Great I will be working on a header here very shortly.
If anyone wants to donate their stock header to me I will use that
To build my jig, as of right now I need a stock header to make all the
flanges and know where the tube placement can and cannot be.
If we can square away a stock header we can build a header."

[Galavoxx]

Here's what Leo told me...

From Leo Weapon R: leo.now@weapon-r.com

"Great I will be working on a header here very shortly.
If anyone wants to donate their stock header to me I will use that
To build my jig, as of right now I need a stock header to make all the
flanges and know where the tube placement can and cannot be.
If we can square away a stock header we can build a header."

When was this?

[Galavoxx]

Here is the old thread:

http://www.yarisworld.com/forums/showthread.php?t=2581&highlight=WRLEO

...and it looks like Leo may have been banned from YarisWorld.

[CASTREX]

When was this?

It's from 2 days ago.


Here is the old thread:

http://www.yarisworld.com/forums/showthread.php?t=2581&highlight=WRLEO

...and it looks like Leo may have been banned from YarisWorld.

I don't know about that. But now that you are telling all this... It just sounds odd.

[Galavoxx]

...very odd. I'm not bad mouthing them. Just wondering what they are up to since I already had my car "jigged" for the header.

On a brighter note, I talked to a guy whom I sold some TRD shock absorbers to and he indicated that his company may develop a 4-2-1 header for the Yaris. I'll try to get some further info out of him as I'm not sure how serious he was. He did own a Yaris though and his company develops parts for the Lotus Elise. One of the parts they currently produce is a 4-2-1 header.

[largeorangefont]

...very odd. I'm not bad mouthing them. Just wondering what they are up to since I already had my car "jigged" for the header.

On a brighter note, I talked to a guy whom I sold some TRD shock absorbers to and he indicated that his company may develop a 4-2-1 header for the Yaris. I'll try to get some further info out of him as I'm not sure how serious he was. He did own a Yaris though and his company develops parts for the Lotus Elise. One of the parts they currently produce is a 4-2-1 header.



Looking at the stock design, which is pretty good considering emmissions and packaging, I don't think a 4-1 bolt on header will really gain much of anything. I don't think losing mid range torque for 2-5 HP on the top end is worth it. I would be in for a 4-2-1 design.

[Galavoxx]

I emailed the lotus guy. We'll see what he says.

[largeorangefont]

I emailed the lotus guy. We'll see what he says.
It would be great if they did up a long tube header :)

[dngz]

i got the short ram intake from WR. the intake works well but installation was tricky. instructions were difficult and the MAF sensor didnt line up correctly. I eventually just crammed the screws in.. id hate to ever have to thak maf sensor out again.. lol

and what do i get in return if we donate my stock header?

[Yaris TTE JWRC]

i got the short ram intake from WR. the intake works well but installation was tricky. instructions were difficult and the MAF sensor didnt line up correctly. I eventually just crammed the screws in.. id hate to ever have to thak maf sensor out again.. lol

and what do i get in return if we donate my stock header?

I agree, i had an Weapon R short ram intake for my old Echo before i went for the TRD CAI, the Instruction were chessy with poor photo, and doesnt even match the product, i had a hard time installed and was never installed properly due to the chessy product, i will never buy another Weapon R product again. Im not sure but I think Weapon R is an American Company that clan its from Japan. Button line is, Weapon R's are no good:thumbdown:

See what im saying???? :bow:

[Galavoxx]

Talked to Joe, the Lotus man. He estimates his hand-made headers would cost about $1300 for a 4-2-1 config. :eyebulge: Part of the issue is that it will be incredibly difficult to make a 4-2-1 that is the same length as the stock Yaris header. Either the header tubes will have to undergo some crazy bends or the rest of the exhaust would have to be reconfigured to match up to the longer then stock 4-2-1. A turbo is still possible but honestly, I didn't ask about the price. I guess we'll have to wait and see if Leo at WR comes through. Castrex, any word from him?

[WRLEO]

Galavoxx.. We didnt have your car jigged for a header.. We wanted to.. And it was way too much work to do so, with the time frame we had.. If we had the car for atleast 1 week we could make one On the spot.. I told you we needed to get the lower flange made because the xb was different.. We knew the xb was different than the yaris , but didnt know hwo much and we wanted to fab something.. I dont understand how we dented your rocker panel... When you jack up a car the lower rockers bend with a floor jack.

At any rate... we would love to get a stock header because we already know the combo we need to do with this header " same config as the xb header " we did to make power since it's the same engine etc..

So all we would need is a stock header and the Donor will not get their stock header back but would get a " FREE WR Header " when we finish making the header. Anyone intrested contact me..

Also i would like to get a poll going for people who want a SMOG Legal Header or a Race Header which eliminates the Cat.

Difference in Power is alomst +50%.. Our Xb header makes about 10hp and 10lbs Tq.. So a a race header would make about 15hp/ 15 tq..

[ROCKLANDTOYOTA]

so the megan header is weak???? as for weapon r products ive stayed away from these as far back as 2000 when i had my del sol.....PURE GARBAGE!!!!!

[WRLEO]

At this time i dont see any Header that makes more power than our TC header or Xb header. Or at that fact any Integra header that makes more power. We may be garbage in your eyes, but we make power.. And since 2000 our quality and performance idea's have changes extremely.

[Galavoxx]

Galavoxx.. We didnt have your car jigged for a header.. We wanted to.. And it was way too much work to do so, with the time frame we had.. If we had the car for at least 1 week we could make one On the spot.. I told you we needed to get the lower flange made because the xb was different.. We knew the xb was different than the yaris , but didnt know how much and we wanted to fab something.. I dont understand how we dented your rocker panel... When you jack up a car the lower rockers bend with a floor jack.

Hey Leo. Here's my diatribe. And I'm not trying to badmouth you or your guys but my car was with you for a total of 3 days. In your original post on this subject, you indicated that you were "looking for a final test fit car to check the fitment 100%." To me, this implied that you already had a prototype header on hand and you were actually going to "test fit" it to my car. In actuality, you only had an xB header.

That didn't bother me all that much although I thought it was a little weird you didn't just say that you wanted to try the xB header to see if it would fit. You then came back on this board and posted a dyno chart of what kind of power the header might make and stated that you could bolt up at least one of the downpipe bolts. I understood that the flange did not fit but didn't think it would take 3 months to fab a flange. And, if the fitment was so close, why do you need another car for an entire week? And why didn't you call me about a car since you already had mine and have my number and know I'm willing to come down? Anyway, I don't want to sound like a whining ex-girlfriend here but I think you see what I'm sayin.

The other thing. The passenger rocker panel was bent. The seam under the car where the rocker panel is welded to the unibody was bent and the rocker being attached to that was basically sticking out about an inch to an inch and a half making the panel look all kind of f*(&%! up . The way in which the seam was bent could only be done by a jack. I know this because I've done the same thing on another car. The jack arm gets hung up on the underbody seam before the pad touches it's jacking point. If you don't lean down and take a look to see if this is happening, the arm will bend your seam. Not always a big deal. On my Porsche, I bent the front left seam in this same manner. The difference was that those seams just bent without any effect to the visible body panels of the car. With the Yaris, the panel popped out as much as the seam was bent. No big deal. I got in there with some vise grips and bent it back. Not what I wanted to do. Panel alignment is a little off now but the car is Black so I don't care all that much. Even so, you need to let your guys know to be more careful. And yes, I know they will deny having done it, but it wasn't there when I took it in. And I know I should have checked for damage before leaving with the car, but I didn't. Which is why I never said anything.

With all that said, I still want a damn 4-2-1 header. I want some extra horsepower. Since i just had another guy tell me that the 4-2-1 might not be possible on the Yaris, I'm wondering what you have to say? Is there a space issue in doing a bolt on 4-2-1 on this car? Is that why you're asking about a race header? What's the real delay?

[WRLEO]

We thought the Xb header should have fit, it bolted to the cylinder header but only one of the bolts bolted to the exhaust, i explained to you there needed to have a 45 Degree kick to the right and the flange was slightly wider. I told you also i travel to asia to work on cars, so the baton was passed to ray. which you met and he no longer is with us. So now im stuck picking up the pieces. A 4-2-1 header is easy to make fit in the car, if i had a week with the car i can get one fitted. Your car was there but we also need the flange autocad'ed and then taken to a CNC to get it cut out before we can make the headr finally made. If you saw our jacks it doesnt have a pad on the perch, i wasnt the one who instaled the header or jacked your car up, but i will appologize about that.

So if i can find another car, or get a stock header i can have a header done pretty soon here.

But i do think a race header will make more power.

[Galavoxx]

you should be able to find a stock donor header from one of the guys on here. At least ten of them bought a Megan header so there are definitely some stockers laying around. Start a new post on the subject and hopefully this thing gets made.

Or...you could just buy a Megan header off eBay for $200 and use that as your jig. Might be easier than fishing around on here.

[eco]

Ive still got my stock header,but I live in Ga.,I would love to get more all-around power,but I am actually convinced there is a major improvement at the top end of the band,when I floor it,and the car stays around 5500 rpm is when I notice it the most,you really need a wide open exhaust aswell,this is where a 4-1 is better.

[ChinoCharles]

If you guys still need a stock header PM me.