Evo-R rear diffuser fitment issues (PICS INSIDE)
 

11/6: Evo-R and I came to an agreement that he would partially refund me for the poor fitting part. Because of shipping difficulties, and also because the diffuser is almost permanently attached to my rear bumper, I couldn't return it. They also said to test fit all parts before shipping from now on. Lets hope so. After all they were responsible and solved the issue with very little hesitation.


8/6 UPDATE

What I though it'd be impossible to achieve, it's done.... but by forcing the diffuser to stay in place with heavy fastening (pop rivets and 3m polyurethane silicone, instead of screws and double sided tape). As of now it is held under a lot of stress, only time will tell if it cracks with the minimal bump or even sunlight exposition.

I want to clarify:
1. I received a poor fitting piece along with many other members of this forum. Maybe a problem with the fabrication process.

2. If I wanted to install this the right way, it would have cost me a lot more (dissent in 3 pieces, re-fiber, etc).

3. Although it looks "OK" now, I'm not happy with the looks of it. The edge of the diffuser should tuck into the crease, not placed awkwardly over it.


May look fine for some...
http://img215.imageshack.us/img215/8310/dsc03182s.jpg

Left and right side. Notice it is not wide enough to reach and tuck into the crease. It just stays over the edge.
http://img69.imageshack.us/img69/4773/dsc03186ws.jpg
http://img849.imageshack.us/img849/6554/dsc03184v.jpg

The middle does fit fine.
http://img707.imageshack.us/img707/5683/dsc03187r.jpg

http://img710.imageshack.us/img710/5781/dsc03193g.jpg

Heavy fastening been used... included screw won't do the job.
http://img444.imageshack.us/img444/5907/dsc03181b.jpg















ORIGINAL POST

After a very anxious wait of 1 month +.. My evo-R diffuser finally arrived... but just not as expected.

Let's go step by step shall we?

The problem?: It doesn't fit.
Why?: It is not wide enough to cover all the rear valance.
What should I do?: Contact Evo-R you might say (which I already did before posting this)
But?: The difusser has been shipped to my country Panama, costing me more than $100 and it is even more costly and a PITA to ship anything back from here.
So?: I post pictures here for solutions or a possible agreement with EVO-R to see if they will cover the fees needed to make it fit like it appear on the pictures.

I used long exposure to show you the details.

http://img440.imageshack.us/img440/3189/dsc03168cx.jpg

http://img845.imageshack.us/img845/5552/dsc03170r.jpg

http://img338.imageshack.us/img338/6180/dsc03169u.jpg



And here is how it supossed to be:
http://www.evo-r.net/product/370Z/Rear_diff/CFDIFF1.jpg

Sureeee.....
http://img233.imageshack.us/img233/1683/captureha.png



Utterly dissapointed. :shakes head:

That's why you buy the original Fujimura for perfect fitment.

Maybe you can use those scoops to make a brake cooling kit.

Just kidding, sorry to hear about your issues. Hopefully they can fix you up.

sadly, it is true... it is a replica and CF at that. I feel for your pain in fitment, but even the real deal isn't 100%.

At least it wasn't a CF hood with fitment showing the engine bay @_@

It is not a matter of brand or not, we are talking about an $400+ item here, couldn't they at least test fit it in a bumper?

Oh BTW they also included a crappy chinese silicone glue which I'm sure I was charged about $20 for it. 3 pounds of crappy glue sent across the world. Very genius.

Frost: I was thinking more like a roof difusser, mitsubishi EVO style. No pun intended.

that is pretty piss poor fitment, but in your sig you have a link to your "salvage rebuild project" Is that an OEM bumper you are running?

100% original bought from dealer, came with invoice from Nissan itself.

All I could say is Contact Evo-R

Yikes, I always hear that the EVOR diffuser may need some minor tweaking to fit perfectly but that is way past minor tweaking. Good luck!

I was just gonna Order one!

Fitment isn't THAT terrible.

How much flex is there to the piece? So long as you don't anchor it in such a way that it puts stress on a section, you can probably get it to fit about 98% perfectly where the only parts that don't look quite right are under the car where no one will be looking.

Seriously, I've seen some really POOR fitment for aftermarket parts, and I'd say that is good to very good although certainly not excellent.

How much more is the Fujimura one for perfect fit?

It is hard FRP + a few layer of CF and about 2mm of clear coating. It is not flexible at all... I tried to pull it a little to the outside and could feel that cracking come if I forced it a bit more.

Of course I can force fit it, but that's certainly not worth $400. I got a $120 front lip from ebay and the fitment is many times better. This is not something I could work out with a heat gun, little sanding and fastening.

To make it fit right it is needed to
-Cut it in 3 pieces
-Extend each side about 0.5 inch
-Use CF to match pattern, FRP to reinforce it.
-Apply clear coat
-Sand to flatten and smooth surface
-Polish

I wouldn't call this good to very good fitment.

It also leaves a 1/2" gap in the top but that's the least of my concerns.

Terrible fitment would involve it not clearing the butt-plug or exhaust cutouts. Not lining up at all. I've seen aftermarket parts designed for a specific car that absolutely require body work to even come close to fitting on that car.

It's only "terrible" in that it doesn't wrap perfectly flush against the underside of the vehicle when held in place with his hand.

Some of the "terrible" fitment may be mitigated with some clever mounting if there is some flex to the piece (there may or may not be). If not, only someone crawling under the car is going to even notice.

It's not OEM. It's an aftermarket piece. They rarely match OEM in quality or precision. If the Fujita piece fits perfectly -- awesome. Probably costs a good bit more too.

That said, EVO-R is probably better off trying to make his customer happy and working something out for an exchange or return.

But the fitment isn't "terrible". It's just not perfect.

EDIT: Fair enough -- I'm just going on what I see in the photos. If it can't be made to fit to your satisfaction, sounds like EVO-R owes you a refund. Hopefully he'll work something out if you exchange for another part. Good luck!

That's pretty bad fitment for a 400 dollar piece.

It almost looks warped but like you said there's no flex. Like it warped downward on the ends, kinda into a C shape. Maybe it happened in transit somehow? I have the Evo-R high wing and lotta people said fitment was a little rough and it was but i wouldn't rate it terrible. I would have said 6-7/10 on fitment, all aftermarket usually requires a little work. If it is in fact to short as you say it is, then I would call it terrible fitment. I'm sure Evo-R will work something out for you to resolve this issue

M
Prx

Same exact case as before. Many people did not actually install it on and just place it on. Saying ti don't fit. If you don't push up the each end sides it won't line up. Also please do not line up above the curved in line. Got to be below it. From you photo you see you push it up too far up, then the sides won't fit in. Once all screw in on the correct position, it will fit right. Also we all now provide silicon adhesive to insure it stays on. So once applied use tape to hold it over night. On you car you have painted the center part in flat paint. 3M double side will not hold. So I do suggest you use silicon adhesive. I'll give you more detail photo where should line up.

I'd like to see pics as well. I can't get my FRP to fit, even trying to *not* fit it up into the groove (which I think is what Jay is talking about). The upper corners are an inch off the body - no way any amount of tape or silicone will hold them down.

http://i3.photobucket.com/albums/y96...C/6c54883b.jpg
http://i3.photobucket.com/albums/y96...C/5404c12f.jpg

Exactly. I either get a gap on top, or on the sides. I will try to install it as jay says and post more pictures. I have 3m polyurethane silicone which is much bettter than the one provided.

I have one from EVO in carbon and it looks great!!

looks like they washed it and dried it and shrunk. :icon17:
i thought evo-r improved it a little bit over the years.


the fujimura i have fit like a glove. :yum:

Did you have any fitment issues like the one shown in the pictures? or it was spot on fit?

Spot on!! It is matched with the Shine rears in carbon

Mine was a terrible fit. I actually cut it into thirds and re-carbon fibered the piece because it was off so much.

I dunno man, even with it lined up like you have in the picture, I can't imagine the OP is going to gain like a half inch on each side which is what it looks like it is lacking...

OP you should try mounting the top with double sided tape and line up as EVOR suggested to see what happens to the sides.

After 3 hours fighting with this piece I finally made it to fit -BARELY- by employing a very efficient method for fixing stuff the manly way, called brute force.

Because according to EVO-R directions, you basically use brute force to make it fit, and if it doesn't line up with where it should (the edge of the valance), you just have to deal with it, no matter if it looks awkward.

But of course, I had to use "more severe" fastening ways, the little screw just won't do the job. Drilled two additional holes below the first one, and added two pop rivets each side. I did not even touch the double sided tape because it won't do a thing, there is a 1/2" gap after I managed to secure both sides. So I generously applied 3M polyurethane silicone, and put some spacers between the exhaust tip and the diffuser so it stays in place.

I clarify: I've done everything possible to make it look like in the pictures, but still not looking properly. Although it does look a bit more respectable now, saying this will have a perfect or very good fit is a lie. I'm still not happy at all with the looks of this product, nor the instructions and materials supplied by the manufacturer. Many customers don't have the time for this and their only choice is to cut it in 3 pieces and re-build the diffuser, like stated by Perf.Des.


Right now I'm waiting for it to dry. Some pictrures meanwhile...

Driver side done :icon14:
http://img220.imageshack.us/img220/5214/dsc03173n.jpg

This is how passenger side looks after you fit the other side. So more brute force has been used. I thank God because my diffuser didn't crack apart. :bowrofl:
http://img193.imageshack.us/img193/781/dsc03176ad.jpg

"Use the screw... it will hold it" No, pop rivets. two. :shakes head:
http://img444.imageshack.us/img444/5907/dsc03181b.jpg

That sucks bro.

From the second photo you see theleft side is pushed all the way up which is not suppose to be... cannot line with the lower edge?

No because if I line up the middle the upper corners would be even more exposed. The problem is that both sides are "dropped" forming a downward C-shape.

Also, the picture you provided shows the top part pushed all the way up with nice fitment on the sides. I did my install based on this. Now you are saying it is not supossed to be like that?

http://i3.photobucket.com/albums/y96...C/6c54883b.jpg

That sucks man it's not fitting, and it's such a nice piece.

That's about where mine is. The lay-up mold is simply off. I've got to assume that originally it was meant so the lip of the diffuser tucks into crease of the bodywork (like it does on the top). I've thought about building out / elongating the 'corners' on mine so they go into the crease. I'm thinking I could do it with some bondo and then lay a layer or two of fiberglass on top of that for strength and get it pretty good looking.

Its cause the angle of the photo. I'm saying you see how you line up on the edge line, where I had my arrow. Same lining alll the way

When I pull the sides apart, the middle will raise up. Because originally is where it should fit, tuck into the crease, not lined up with where you pointed. Most people who recieved a nice fitting diffuser have it installed this way, and it was spot on, no forcing required. The diffuser I recieved has a downward C-shape, so much that the screws included won't keep it in place. It simply doesn't line up with where you say.

So after all are you implying the mistake is all mine for not being able to install it correctly and you will not assume any responsability for a $400 piece with bad fitment?

that sucks man.... :( my frp one fit like a glove... but it was one of the first ones made.....?!? maybe there mold now has warped already from making to much rear valances?

Sucks that your having an issue, was the whole rear structure replaced during the salvage repair process or was some of it reused. Maybe its just a hair off?

This is just my 2¢, but a company should make a product that just fits, it doesn't matter if it's oem or aftermarket or replica or whatever. If you're going to make a product, take the time to make it right. Hell, it looks like I could half-*** and sell them and then tell people "oh hey, it's aftermarket stuff. You have to chop it up to make it fit." No. Make it right, or don't make it.

Now don't get me wrong, I've heard a lot of good stuff about Evo-R, but I would think once you make the part you should do a test fit, it would take less than a minute, and everyone is happy.


Sent from my iPhizzle using magic and new fangled science stuff

I had some issues with their side blades... about an inch or so too short on either side. Wasn't that impressed with them.