Kohler Highline Two-Piece Toilet vs Kohler Cimarron Two-Piece Toilet: Which Should You Buy?

The Kohler Cimarron has significantly better flush power. Its MaP score of 1000g means it can clear 1000 grams of waste per flush, while the Highline manages 800g. The MaP (Maximum Performance) score is an independent test that measures how much waste a toilet can flush in one go—higher grams mean fewer clogs and less need for double flushing. The Cimarron’s AquaPiston canister flush also provides a wider water distribution than the Highline’s Class Five system, and its 3.25-inch trapway is much larger than the Highline’s 2.375-inch trapway, further reducing clog risk. For heavy waste, the Cimarron is the clear winner.

Both toilets save the same amount of water. Each uses exactly 1.28 gallons per flush (GPF) and is WaterSense certified, meaning they are at least 20% more efficient than standard 1.6 GPF models. Over a year, you can expect similar water savings from either model. The choice here does not affect your water bill—both are excellent for conservation. However, the Cimarron achieves its 1000g MaP score at the same 1.28 GPF, making it more efficient per gram of waste cleared. If you want the best water-to-performance ratio, the Cimarron edges ahead.

The Kohler Cimarron is better for a family bathroom. Its 1000g MaP score and 3.25-inch trapway handle the higher waste loads typical of multiple users, reducing the chance of clogs and the need for plunging. The Highline’s 800g score is adequate for lighter use but may require double flushing with heavier waste. Both have comfort height (17 inches) and a 12-inch rough-in, so ergonomics are identical. For a busy family bathroom where reliability is key, the Cimarron’s extra flush power makes it the safer choice.