Mazda Talk Forums

Looks really good Brian, as usual, and sounds great in Mark's videos. Like the attention to detail on the design with the nice big radius mandrel bends, and the fit and finish is flawless!

We've been asked many times if our 6-piston upgrade is overkill for the ND...we'll let the data do the talking .

And then somebody asked me to explain what the picture is showing them, so here is the quick guide:

Our four piston Wilwood uses a 6.4 square inch pad making it the best match for size with the factory standard front calipers which use a 6.2 square inch pad, making our four piston setup a great choice for taking out the slop of the big single piston setup while dropping as much unsprung weight as possible for a comparable setup. But the best PERFORMANCE match to the optional Brembo setup is our Six Piston setup. Why? The Brembo may be 'only' four pistons but it is a relatively BIG four piston caliper with even bigger pads and as you can see in the picture our Six Piston Wilwood is the best match for those seeking to match what the factory is doing with the Brembo. WE have raced it and all our drivers loved this Six Piston Setup!

We have the little Powerlite pad on there because our competitors using that caliper are running around the forums suggesting their 'upgrade' choice is only 7 percent smaller than stock...without telling folks that math is actually based on the REAR pads and not the 6.2 square inch standard ND front pads.

For those into the numbers, ND spring rates (lbs/inch)

OEM Spring Rates on our LE (as measured, not official from Mazda).

156 front
80 rear


Progress Test Springs

180 front
115 rear

Cusco Coilovers and their Exhaust

Interesting muffler design from Cusco. I seem to remember someone suggesting something like that back on page 3. Looks a little different with two different size resonators in it, though. I'll bet that one is nice and raspy!

Keep all the cool options coming!

Fun weekend of autocross in our ND....with our buddy Emilio of 949 Racing (his 'Taxi' race car below in yellow).

more fun pics

Are those the Tungsten 6UL wheels on the red car? That's a REALLY nice looking combo with that color! And I'm terrible at guessing wheel sizes, but are those the 16x8 or 17x8 wheels?

Yes, Tungsten 17x8 and I agree it looks awesome on the ND, getting lots of compliments on it. Here is another pic that shows them even better. Tire size here 215/40.