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Hoods vents are a key element to improving the cooling system effectiveness. Reducing the pressure behind the radiator creates a larger differential between the front and rear of the radiator. The larger the pressure differential, the greater the airflow through your radiator. Reducing underhood pressure also cuts down on lift under the front of the car, improving downforce.
Prior to this product, we didn't have any well designed vents made for the Miata. There are very few aftermarket hoods, and most of them weigh more than the stock hood. We have seen the DIY vent options out there, including grafting on vents from other cars. Most of these are less than ideal and run into problems as they are not intended for Miata hoods.
Singular MotorSports carefully tested their design on the Miata. They started by investigating the pressure and airflow of the stock hood and then tested a number of existing venting options. They used the best performing vent they found as a benchmark and set out to beat it with a new design from the ground up.
Singular MotorSports started with a general design based around what should work well, then tweaked and tested until they arrived at the final version you see here. The result is a louver system including gurney flaps that reduces the pressure under the hood by a staggering 50%, fits NA and NB hoods with placement tailored to each model. These louvers work in the lightweight factory aluminum hood to minimize cost and you do not have to deal with poor fitment of aftermarket hoods, and does not sacrifice hood rigidity so that even the stock hood latch can still be used.
This is a DIY installation part. That said, Singular MotorSports gave careful thought to ease of install from the beginning and you get a full vinyl cutting template specific to the NA or NB Miata. The cut template removes the guesswork from your install, just stick it on and it shows you where to cut. Also included is rubber trim that fits around the circumference of the holes, making it easy to achieve a clean and finished look.
The louvers ship flat (unbent), you bend the fins when you receive them. The new Version 2's come anodized in black, and can easily be painted over if you desire a different color.
Reduces under-hood pressure by 50%
Dramatic Improvement in engine cooling efficiency
Decreases lift on the front of the car
Backed by data developed through pressure and flow testing
Outperforms every hood vent option tested (by a lot)
Specifically designed for the NA and NB Miata hood
Retains hood rigidity and the use of the stock hood latch
Designed and produced in the USA
What you get:
Precision waterjet aluminum louvers
Integrated gurney flap design
Aluminum rivet mounting hardware
Rubber trim to cover the cut edge for a clean look
Chassis specific vinyl cut template INSTALL NOTES: Here is what you get in the box, including template.
Start with positioning the included template on the hood as shown below:
Louvers are pre-cut but need to be bent as shown here:
Result after bending looks like this:
After painting or powder coating they can look like this:
Cut and attach.
Installed they look like this:
Awesome Red Miata With Singular MotorSports Hood Vent Kit Installed, courtesy of Customer Chris Myhre