Review on Enhance Performance with Qiilu Car Fuel Rail Adapter: Perfect Toyota Nissan Fuel Rail Pressure Regulator Adapter including Fittings by Aaron Parish

I have not rated my injectors on my 2002 wrx. There is an effect called "Water Hammer". If you've ever heard a sound in the walls after the faucet was turned off, that liquid was flowing in the direction of the current. Because Subaru's stock fuel rails are fueled unevenly, this causes water hammer in the fuel rails on cylinders 1 and 3. These are fuel pressure spikes. Oooooh I got this and another adapter to the ESC (on MAPerformance) and bought an extra fuel dampener to absorb the effect. Now it spins like GLASS. Love it. Idle like glass WORTH IT. CONS: I cut my finger very badly installing it because it is sharp. It's stuck, so lube the o-ring or it breaks. Also, it's aluminum, so it's pretty soft. Thank you for reading! :)