CSF 3164 High Performance Radiator

Installed this in my 2006 RX-8 that sees occasional track duty. Fit was perfect.The OEM radiator is undersized for what the rotary needs in my opinion. After swapping this in the temps stay pretty steady between 190-210 whereas with the stock radiator it would regularly creep up to 220 in normal street driving.The photos are to illustrate the added thickness of this unit over the stock series 1 radiator. The photos appear to show the height/width being larger on the stock radiator but this is an optical illusion. The height and width of the two are identical; it’s only the thickness (and materials) that differs.

Exact fit for my 2006 rx8 and worked 100% first key turn. The rad was a piece of art, it's a shame no one will ever see it after install, it's made well and don't think one could ask more for the $ or even quite a bit more.

This radiator fit perfectly. Welds and polish look great. All bolt holes and brackets lined up correctly. The trick to getting old one out and new one in is to drop it down a little, then rotate it vertically to lift it out. It put new one in with fans attached and it dropped into lower supports. Highly recommend this radiator for your RX8!

This was a direct, drop-in fit for my 2005 Mazda RX-8 6MT. NOTHING had to be modified. This is about as thick a radiator as you can fit before it starts to push the fan shroud up enough to interfere with the battery and air box trays.It has enough cooling capacity that I didn't realize that one of my radiator fans had stopped working until I noticed it while doing other maintenance.

Perfect fitting all around, no need for fabrication of miscellaneous parts, fan cover assembly also fits perfectly, just make sure to save the original top and bottom bushings (not included) other than that it’s an awesome product. Also, performance wise it’s top notch. I’m very pleased with this product.

Looks great and preforms even better. Has a drain plug in the bottom of it also. Love this radiator! Wish I wouldn't have waited so long to buy it.

Bought this on a recommendation from a friend for my Rx8 after my plastic OEM broke. Fits a little tight (still got it in without modifying anything) due to it being a dual pass, but it works amazingly. I never see temps over 208'. Super hardy construction, looks amazing, well worth the money.

Perfect fit. Fitment, fans, hoses all fit perfect on 05 rx8, manual!