Best quarter louvers that actually curve to the window?

[stannypack]

Been wanting some rear quarter louvers, but it seems all the popular ones on AM don't sit flush on all the edges of the window since they're mostly straight. Anyone have experience with some basic quarter louvers that actually sit flat on all the edges?

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[RagmopInKona]

Been wanting some rear quarter louvers, but it seems all the popular ones on AM don't sit flush on all the edges of the window since they're mostly straight. Anyone have experience with some basic quarter louvers that actually sit flat on all the edges?

Can you show what you mean, I thought they all were installed using 3m tape, at all the edges. Sitting flat might just be the thickness of the double sided tape and camera angle.
If you never want to be able to remove them you could use 3m panel bonding adhesive

 

[stannypack]

Can you show what you mean, I thought they all were installed using 3m tape, at all the edges. Sitting flat might just be the thickness of the double sided tape and camera angle.
If you never want to be able to remove them you could use 3m panel bonding adhesive

https://www.americanmuscle.com/speedform-vintage-quarter-window-louver-gloss-black-1518.html
These are the ones I want, but when you sort reviews lowest multiple people say the corners don't sit on the glass and stick up, also in their installation video it doesn't look like it sits flat either

 

[RagmopInKona]

https://www.americanmuscle.com/speedform-vintage-quarter-window-louver-gloss-black-1518.html
These are the ones I want, but when you sort reviews lowest multiple people say the corners don't sit on the glass and stick up, also in their installation video it doesn't look like it sits flat either

I am sure like any other body part you have to adjust it, before locking it down. fiberglass, it is a given, something like this, you use a heat gun to warm it up and make adjustments. Hard to do on pre painted parts, and why I don't buy pre painted.

 

[Roadsign]

Although not a direct answer to your question;
These look to be vacuum formed out of ABS which is most likely what most of these types of products will be. Depending on how bad the corners stick up either heating the part to fit better or using an adhesive promoter can solve fitment issues.

 

[RagmopInKona]

Although not a direct answer to your question;
These look to be vacuum formed out of ABS which is most likely what most of these types of products will be. Depending on how bad the corners stick up either heating the part to fit better or using an adhesive promoter can solve fitment issues.

The glass isn't sitting at the same depth from the body panel all the way around either. Adding 1/8" or more thickness on top of the glass make this more pronounced as it is higher than the body panel/trim.

 

[Bobn57]

I wanted to install these on my 06GT but never got around to it...
https://silverhorseracing.com/produ...rs-pair-unpainted-for-2005-2009-mustang-html/
Not sure if they make for S550 but much better than stickon IMO.

 

[RagmopInKona]

I wanted to install these on my 06GT but never got around to it...
https://silverhorseracing.com/produ...rs-pair-unpainted-for-2005-2009-mustang-html/
Not sure if they make for S550 but much better than stickon IMO.

Those replace the glass, not the same.

 

[Bobn57]

Those replace the glass, not the same.

correct....but SHR option (if it was available for S550) provides a flush louver look like the first gen stangs. Obviously more cost and harder installation than tape on. Here's a few other options..
https://www.glassskinz.com/products/ford/mustang-s550
https://www.lethalperformance.com/search/?q=quarter window scoops

 

[MAGS1]

There is a company that makes louvered glass for the S550 that is a similar style to the 50th anniversary quarter window glass. Check out the 50th anniversary section, the link should be there somewhere

 

[PeterParker]

Just FYI: Anyone with the pony package with the chrome look surround, NONE of the quarter window louvers fit right. I tried 4 different ones and had to send them all back.

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