Gurney flap

[jabberwoki]

So the manual says the Gurney flap should not be used for street driving?

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[lenFeb]

Gurney flap is design for downforce during high speed. It's helpful around the race track. It's defeat the purpose on regular street driving. Moreover it's increase drag, thus increase fuel consumption. To some the reason to have it on is due to it's cool look. Do whatever please you.
BTW the GT350 manual doesn't say it shouldn't be used for street driving
From 2019 GT350 user manual(Page39)

 

[Joe Mac]

So the manual says the Gurney flap should not be used for street driving?

I put mine on the day I bought it.
Looks great

 

[jmn444]

I suspect they add that so they can publish epa/mpg numbers without the flap on.

 

[RPDBlueMoon]

So the manual says the Gurney flap should not be used for street driving?

It increases drag, so you'll get lower MPGs

 

[jabberwoki]

Gurney flap is design for downforce during high speed. It's helpful around the race track. It's defeat the purpose on regular street driving. Moreover it's increase drag, thus increase fuel consumption. To some the reason to have it on is due to it's cool look. Do whatever please you.
BTW the GT350 manual doesn't say it shouldn't be used for street driving
From 2019 GT350 user manual(Page39)

I beg to differ

 

[lenFeb]

I beg to differ

Yep, then that's only prove my point, isn't it.

 

[Joe Mac]

Yep, then that's only prove my point, isn't it.

Put it on the day I picked up my car. Looks great

 

[lenFeb]

Put it on the day I picked up my car. Looks great

Enjoy! Nothing wrong with that. Whatever please you.

 

[NC252]

Put it on the day I picked up my car. Looks great

I was thinking about installing mine as well once I get it back from PPF. I'm not worried about MPG, I've already paid my gas guzzler tax. LOL

 

[RPDBlueMoon]

I was thinking about installing mine as well once I get it back from PPF. I'm not worried about MPG, I've already paid my gas guzzler tax. LOL

It looks way better with it on imo

 

[jabberwoki]

Maybe they updated the booklet in later cars?

 

[lenFeb]

Maybe they updated the booklet in later cars?

My 2019 is different(posted on my previous reply). Apparently they updated 2020 with removal on the street driving.

 

[jmn444]

LMAO at the "must" be removed.... either protecting themselves from idiots that will complain about mpg's or from the epa for not installing it for mpg testing....

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