Hi Kaislash494 - CNG works fine in Corolla 2017. I have installed it in my car (2017 make and model). I would advise you to go for "Landi Renzo Omegas Sequential Kit" as it delivers exact amount of gas the engine needs, and extremely sophisticated. Drive is quite smooth and trouble free. I have been using it since May with no to zero issues. Though, i have also heard "Open Loop" CNG kits also work well in new Corolla.
I have installed Suzuki APV brand new gas cylinder 60 Kg (that was auctioned by Suzuki, and got it from Jillani CNG) with PRD (Pressure Release Device), and Omegas Sequential Kit was installed by Landi Renzo Karachi workshop. Landio Renzo staff is well trained and professional, so you don't have to worry about the quality of the work. Additionally, you have one year warranty on all parts:). What else do you need.
Regarding mileage, in city we are getting 110 km/tank, whereas on highways, it is around 140-150 km/tank depending on the pressure of the CNG station.
I can provide you contact details of someone working at Landi Renzo Karachi workshop, and you will surely be offered some discount as well.
best regards,
Ali
