Let's see what you've done to your car
Coilover's are generally way more stiff than lowering springs. You can adjust the dampers and can improve a softer rebound if you're worried about comfort. Also, depending on the company you decide to go with check out the specs of the spring rate for a softer set to improve ride comfort... Usually, those who go with coilovers generally want more performance out of their suspension than ride quality/comfort. So, take into account lower spring rates = softer more comfortable ride quality and higher spring rates = stiffer more performance oriented/less comfort. Too much spring rate will also cause loss of traction so, too stiff is not all that good and too soft will create more body roll so study your car and figure out what you want.

My mods for my Sentra are too much to type into a paragraph... I'll just copy paste it over lol...

-Injen CAI (Polished)
-Injen X-1033RED Red Hydro-Shield Pre-Filter
-2J Lightweight Pulley (Red)

-BC Racing Coilovers
-UR (Ultra Racing) FTSB from a 2008 X-Trail P# UR-TW2-1225 (Black)
-UR (Ultra Racing) Front Lower two point bar from a 2008 X-Trail P# UR-LA2-1226 (Left it white for now)
-Massive RaceSpec Adjustable End Links MASS'16392.7
-TWEED 3-Point Engine Bay Bar (Black)
-TWEED Lower Rear Brace/Bar (Red)
-TWEED Trunk Strut Bar (Black)
-JNC 014 Flat Black 17x8.25 32+ Offset (TE37 Replica)
-Project Kics r40 (Black Chrome) 12x1.25mm
-Project Kics r40 Lug Locks 12x1.25mm
-Continental ExtremeContact DWS 245/40/17
-Specialty Products 71733 (Rear Camber Shims) 1 Degree from -1.14 to -2.14 (Rear only)
-SE-R Spec V 25mm Front Sway Bar
-Energy Suspension 16.8104R End Link Bushing Set (Red)

-Debaged Sentra/ Special Edition Emblems
-Plasti-Dip Rear "Diffuser"
-Plasti-Dip Grille
-Plasti-DIp trunk Nissan Badge
-15% Tints
-M-Sport Roof Spoiler (Gloss Black)
-C-mod Grille (Flat Black)
-Hood Spacers 4x4 (8)Washers (3/8 x 1-1/4)
-HELLA Supertone Horns 00399801

-Pioneer AVIC-W8500NEX
-Pioneer TS-A6970F (Front) 5-Way
-Pioneer TS-A6960F (Rear) 4-Way

-White LED Interior Dome, Trunk, License Plate and reverse.
-x2 3157 Profile Peak White LED Bulbs (Headlamps)
-x2 Morimoto LED load resistor (Front Blinkers)
-Morimoto XB LED Fogs (w/ Yellow Lamin-X film)
-Painted Fogs Yellow
-Aftermarket (DEPO) OEM SE-R Style Headlamps (For Projector Retrofit) Painted Flat Black and indicator Gloss Black
-x2 Panamera LED DRL Shrouds (Switchbacks)
-x2 Bi-Xenon: Morimoto Mini D2S 4.0 Projectors
-x2 FGL Mounting Brackets (Foreground Limiter)
-x2 Profile Prism Demon Eye (RGB + XBT Bluetooth Controller)
-Osram CBA 6000K D2S HID Bulbs (More like 5500K)
-x4 3157 Profile Peak Red LED Bulbs (Tail Lamps)
-x2 Morimoto LED load resistor (Rear Blinkers)

*Future Mods/Fixes*
-Paint the C-Mod Grille Gloss Black
-Paint Roof Gloss Black
-RS Front Lip + EZ Lip
-Fix the rear fenders (back to stock specs to clear the wheels)
-Carbon Fiber Hood
-Reupholster Seats (Leather)
-Reupholster Steering Wheel (Leather + Red Stitching)
-5-Lug 4 Disc swap (SE-R/Spec V) (Still debating the possibilities)
-Willwood Brake system upgrade. (Still debating the possibilities)
-QR25DE + rebuild internals + boost (Still debating the possibilities)
-6SP MT Swap (Still debating the possibilities)

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