ACT 04-20 WRX STI Mod Twin XX Race Kit Sprung Hub Torque Cap 1340ft/lbs Not For Street Use - T3R-S05 fits_2016-2020`Kia`Optima Pre Oiled Washable and Reusable

Pre Oiled Washable and Reusable Filter For Max

4 Liter Powerglide

but the stock cooling system just can't keep up

You must have adjustable control arms in order to adjust camber and toe after eliminating the stock eccentric bolts

better fuel economy

ACT 04-20 WRX STI Mod Twin XX Race Kit Sprung Hub Torque Cap 1340ft/lbs Not For Street Use - T3R-S05 fits_2016-2020`Kia`Optima Pre Oiled Washable and ReusableT3R S05 Mod Twin 225 XX Sprung Race Kit performs aggressive launches and smoother shifting in high powered AWDs by combining twice the ceramic friction surfaces with an ultra durable Mono Drive sprung hub assembly in a completely modular design. Each diaphragm spring endures an exclusive four stage heat treating process providing a consistent pedal feel requiring moderate effort. Puck style Friction Plates with high quality ceramic friction materials