Sold Out Quick view Nitrous Express Nitrous Express N-Tercooler Spray Ring Only (19.5 x 3.5) - S11105 Compare $166.99 Wow, how do I start to tell the world why NX is different and better than any other company? Lets start with the NX philosophy: All components must be of the highest quality, no off shore junk; 99% of NX products are produced and assembled in the USA;... Currently Out of stock. On order! Currently Out of stock. On order!