"Spikes" on the roof? - Toyota Yaris Forums

Focus_Sh1ft · 03-21-2010, 04:11 AM

I was at work earlier and I saw an Sti with these spike-like things on the rear end of his roof. They're small and look kind of like mini roof antennae. What is the name of these? I'm pretty sure I saw them on someone's yaris on this forum but I can't find it atm...

cali yaris · 03-21-2010, 04:36 AM

"vortex generators"

Their purpose (on an STI) is to help create more downforce on the wing when that air hits it.

Kaotic Lazagna · 03-21-2010, 05:08 AM

Would that be me

But yeah, like Garm said, they're vortex generators. Completely useless in our cars since they're designed to redirect airflow to a "big" wing to add more downforce (more downforce on the rear of a fwd car is not good). I think they look good, so that's why I got them (plus my spoiler doesn't really create downforce).

schleppy · 03-21-2010, 11:16 AM

Quote:

Originally Posted by cali yaris

"vortex generators"

Their purpose (on an STI) is to help create more downforce on the wing when that air hits it.

So far as I know they never came on the STi, only on the Evo MR, which you have pictured :D

The 06+ STi sedan had a roof deflector that had a similar purpose (directing/cleaning air that goes to the spoiler).

Kaotic Lazagna · 03-21-2010, 03:20 PM

Quote:

Originally Posted by schleppy

So far as I know they never came on the STi, only on the Evo MR, which you have pictured :D

The 06+ STi sedan had a roof deflector that had a similar purpose (directing/cleaning air that goes to the spoiler).

They never came from the factory with them, but were available from various aftermarket companies:

Focus_Sh1ft · 03-21-2010, 03:27 PM

Quote:

Originally Posted by Kaotic Lazagna

Would that be me

Yes, I suppose that would be you

I had no idea they actually served a practical purpose (well, except for our cars at least). Any ideas on where I could get a set? They look pretty sweet

Kaotic Lazagna · 03-21-2010, 03:51 PM

Quote:

Originally Posted by Focus_Sh1ft

Yes, I suppose that would be you

I had no idea they actually served a practical purpose (well, except for our cars at least). Any ideas on where I could get a set? They look pretty sweet

I got mine from an RX-8 site, but eBay has them cheaper. Here ya go:

If you want the gloss black:
http://cgi.ebay.com/ebaymotors/VORTE...Q5fAccessories

Primered if you want to paint them your cars color:
http://cgi.ebay.com/ebaymotors/VORTE...Q5fAccessories

Same brand I got, btw.

Inspector14 · 03-21-2010, 03:52 PM

i have an array of airtabs brand vortex generators on my LB. i put them on the car to break up the negative pressure zone behind the hatch.

since i dont have a rear wiper, my window gets dirty fast when it rains or the snow melts.... the airtabs DO help keep the top half of the window clearer than without.

i have been thinking of putting 5 or 6 on the bottom edge of the bumper, underneath the car, as a poor mans diffuser.

cali yaris · 03-21-2010, 04:19 PM

Quote:

i have been thinking of putting 5 or 6 on the bottom edge of the bumper, underneath the car, as a poor mans diffuser.

A functional diffuser speeds up the air, so it wouldn't be quite the same, but it's still a cool idea.

A spoiler on the hatchback keeps the rear window a lot cleaner, too.

xen555 · 03-21-2010, 08:29 PM

this is one of my fav yaris!

http://www.yarisworld.com/forums/sho...6&postcount=10

TKO · 03-21-2010, 09:16 PM

I got them also....I put these on about 3 years ago

They are the exact same ones in the ebay link....3 phoenix summers and no problem

Focus_Sh1ft · 03-22-2010, 12:38 AM

Quote:

Originally Posted by TKO

I got them also....I put these on about 3 years ago

They are the exact same ones in the ebay link....3 phoenix summers and no problem

These look great... especially black on red. I'm debating going gloss black or primer and color matching to my silver sedan. I noticed the primer apparently comes in a "matte grey" finish that supposedly looks great with a grey or silver car. I'm thinking about taking this route as I really can't be bothered to paint anything.

LA Yaris · 03-22-2010, 12:48 AM

Were can I buy them @ I have been looking all around for them.
Whats the price on it anyways ??

Cosmonaut · 03-22-2010, 05:49 PM

Check this out

LA Yaris · 03-22-2010, 06:23 PM

OK guys I am going to get a pair. Were can I go to get a pair and do they all come in the same size ??

Kaotic Lazagna · 03-23-2010, 01:47 AM

Quote:

Originally Posted by LA Yaris

OK guys I am going to get a pair. Were can I go to get a pair and do they all come in the same size ??

I posted eBay links as to where you can get them (for the lowest price that I know of). The ones that come in the pack are the same size.

spookz · 03-23-2010, 05:52 AM

Quote:

Originally Posted by Kaotic Lazagna

They never came from the factory with them, but were available from various aftermarket companies:

They did come standard on WRX STI Spec. C..

canadian_princess · 03-25-2010, 09:20 PM

Quote:

Originally Posted by LA Yaris

Were can I buy them @ I have been looking all around for them.
Whats the price on it anyways ??

haha this guy, always looking to buy stuff lol, for his car that is, just like me.

check this out!
http://www.jdmpit.com/jstore/product...roducts_id=228

03-21-2010, 04:11 AM	#1
Focus_Sh1ft Drives: 08 Yaris Turbo; 06 tC Turbo Join Date: Jan 2010 Location: New Jersey Posts: 875	"Spikes" on the roof? I was at work earlier and I saw an Sti with these spike-like things on the rear end of his roof. They're small and look kind of like mini roof antennae. What is the name of these? I'm pretty sure I saw them on someone's yaris on this forum but I can't find it atm...

03-21-2010, 04:36 AM	#2
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	"vortex generators" Their purpose (on an STI) is to help create more downforce on the wing when that air hits it. __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.

03-22-2010, 05:49 PM	#14
Cosmonaut The Last Baron View User's Garage Drives: 09 Polar White HB Join Date: Jun 2009 Location: Sanentoneyow, Tecksis Posts: 280	Check this out __________________ Sanction this outbreak, a Virus conspires. Single sparks are Spectral Fires! \| UR 19mm sway \|

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03-21-2010, 05:08 AM	#3
Kaotic Lazagna View User's Garage Drives: '14 GT86, '08 Vitz Join Date: Dec 2006 Location: Central Valley, CA Posts: 9,873	Would that be me But yeah, like Garm said, they're vortex generators. Completely useless in our cars since they're designed to redirect airflow to a "big" wing to add more downforce (more downforce on the rear of a fwd car is not good). I think they look good, so that's why I got them (plus my spoiler doesn't really create downforce).

03-21-2010, 03:52 PM	#8
Inspector14 Drives: 09 Yaris hatch, Meteor Metal Join Date: Dec 2008 Location: Anchorage, AK Posts: 60	i have an array of airtabs brand vortex generators on my LB. i put them on the car to break up the negative pressure zone behind the hatch. since i dont have a rear wiper, my window gets dirty fast when it rains or the snow melts.... the airtabs DO help keep the top half of the window clearer than without. i have been thinking of putting 5 or 6 on the bottom edge of the bumper, underneath the car, as a poor mans diffuser.

03-21-2010, 08:29 PM	#10
xen555 View User's Garage Drives: 3 DOORS LB Join Date: Oct 2008 Location: Puerto Rico Posts: 258	this is one of my fav yaris! http://www.yarisworld.com/forums/sho...6&postcount=10

03-21-2010, 09:16 PM	#11
TKO Drives: 4 door hatch Join Date: Oct 2008 Location: Phoenix Posts: 70	I got them also....I put these on about 3 years ago They are the exact same ones in the ebay link....3 phoenix summers and no problem

03-22-2010, 12:48 AM	#13
LA Yaris Yaris323 View User's Garage Drives: 09 Sedan Yaris 06 Ford Mustang Join Date: Mar 2009 Location: Los Angeles CA Posts: 814	Were can I buy them @ I have been looking all around for them. Whats the price on it anyways ??

03-22-2010, 06:23 PM	#15
LA Yaris Yaris323 View User's Garage Drives: 09 Sedan Yaris 06 Ford Mustang Join Date: Mar 2009 Location: Los Angeles CA Posts: 814	OK guys I am going to get a pair. Were can I go to get a pair and do they all come in the same size ??