WELCOME TO THE GROUP BUY FOR OUR NEW NC DIFFUSER!!  Read to the bottom for complete info - Use this product page to make your purchase and secure your spot in the group buy!  Make sure to choose between single or dual exhaust versions!

This diffuser was designed specifically for the NC Miata to do four jobs:

1. Improve aerodynamic efficiency
2. Increase downforce at the rear axle
3. Eliminate the bumper cover's "parachute effect"
4. Look fantastic while doing all of it

First the design envelope was established - we stayed mostly within the perimeter of the bodywork with only a small amount of protrusion beyond the bumper cover.  We weren't looking for maximum downforce or to install something we need to be careful not to trip over walking around the back of the car.  We wanted a sturdy, streetable piece that looks the part without going too far.  The main profile was shaped to gradually decrease the air velocity as it exits the rear of the car.  This helps merge with the slower air coming over top of the car, to achieve the highest performance within the design envelope. 

The lowest point of the diffuser is level with the lowest point of the rear subframe, so unless your car is really low there shouldn't be a huge risk for scraping the bottom over reasonable driveway entries..  That said, our steel mounting brackets are very sturdy and the diffuser body and strakes are made from 2mm aluminum.  The strakes CAN be replaced if you accidently damage one or two.  Lightweight yet very stiff, and only around 11 lbs installed.  The rear mounts of the diffuser are height adjustable for fine tuning.

Installation is very straightforward, uses factory holes and requires no drilling or permanent modifications.  Very easy with a hydraulic lift, doable on the ground.  Shipped disassembled to keep the package as compact as possible and also to prevent damage in transit.

All diffuser parts and mounts feature textured matte black powder coating - durable with UV protection to prevent fading over time.  All fasteners are stainless steel with black oxide coating.

This is a large piece and requires oversize ground shipping, via UPS or FedEx, depending on your location.

For the initial group buy, we are discounting the diffuser by $100, and we will begin the first production run once we reach 10 orders, shipping around ~4 weeks after that date.

FTIMENT NOTES: This Diffuser is designed to fit all NC Miatas from 2006-2015, with the exception of the NC1's equipped with the "Appearance Package".  On NC2/3 with the cosmetic factory "diffuser/valence" at the bottom center of the bumper cover -- That item needs to be removed for the PacoMoto Diffuser to fit.  This factory valence piece comes loose with a few small fasteners, which can all be retained and re-installed if desired at a later date.  There will be five holes exposed in the bumper cover on these valence cars (see pics), and we will include plastic trim plugs to fill these holes with the hardware kit.

We’ve been offering our Eccentric Locks for NA/NB Miatas for a long time now.  They’ve become a staple in the Miata community from the casually-spirited drivers to the track warriors, keeping those precious wheel alignments locked-in. The tinkerers out there love the ability they give to make incremental adjustments to get the absolute maximum from their setup.

Now NC Miata owners can enjoy the same security with eccentric locks unique to their chassis, which is shared with the RX-8, so identical fitment there too!  The NC/RX-8 chassis uses two different sized eccentric bolts for alignment adjustment, so we're offering large and small versions, accordingly.  (There is actually a 3rd, larger adjustment bolt in front at the back of each lower control arm for caster, but it's not a threat to slip like the other 6 eccentric bolts)

You may purchase the large or small locks individually or as a complete set (4 large, 2 small) to fully equip a chassis (and get a discount!)   The large locks are used at the front of the front lower control arm, and the rear of the rear lower control arm.  The small locks are used at the front of the rear lower control arm. 
Click here for instructions.

This is a set of high quality shock spacers for lifting your NC Miata or RX-8! 

Mazda did an excellent job designing the suspension for the RX-8's/3rd gen Miata.  We designed these shock spacers to squeeze out every bit of suspension droop travel available without making major modifications or even changing shocks or springs.  Our spacers have staggered heights for max capability and proper rake.  Lift heights are 2.375 inches front and ~3" in the rear. 

Fabricated from steel with durable powder coating finish.  In general, you can use tires about 1-1.5" larger diameter than stock tire sizes without body modifications, but there are many variables so make sure you do plenty of measuring before you spend a ton wheels/tires.  Shown on our "Shop RX-8" are 225-60-17 all terrain tires and ~15mm offset steel Dorman Wheels factory replacement for Dodge Charger - (P/N 939-137)

The installation is fairly straightforward if you've worked on suspensions before, but you will need a full wheel alignment done on the car following the install.  Click here for the instructions:

NOTE: The pair of "Paco Moto" brackets shown is for the RX-8 chassis version of the kit only

We’ve been offering our Eccentric Locks for NA/NB Miatas for a long time now.  They’ve become a staple in the Miata community from the casually-spirited drivers to the track warriors, keeping those precious wheel alignments locked-in. The tinkerers out there love the ability they give to make incremental adjustments to get the absolute maximum from their setup.

Now ND Miata owners can enjoy the same security with eccentric locks that fit their chassis.  The ND chassis uses two different sized eccentric bolts for alignment adjustment, so we're offering large and small versions, accordingly.  (There is actually a 3rd, larger adjustment bolt in front at the back of each lower control arm for caster, but it's not a threat to slip like the other 6 eccentric bolts)

You may purchase the large or small locks individually or as a complete set (2 large, 4 small) to fully equip a chassis (and get a discount!)   The large locks are used at the front of the front lower control arm,  The small locks are used at all four positions in the rear suspension.
Click here for instructions.

This is a LEFT REAR Tow Hook for all NA/NB Miatas 1990-2005.  It is made of 3/16" thick steel and comes either unfinished or with your choice of gloss white or matte black powder coating.  Mounts in place of the factory tow hook, and is made to sanction body regulation for track use.