ISC Suspension Street Sport N1 Coilover Kit for 1998-2005 Porsche 911 RWD (996) bilstein-b4-oe-replacement-damptronic-suspension-strut-assembly and jack pad included T-bolts

and jack pad included T-bolts

BC Racing DS Series Coilovers for the 2002-2003 Lexus ES300 (MCV30) blend street-tuned ride quality with track-ready adjustability

Feal Suspension 443 Coilovers for the 2003-2008 Nissan 350Z (Z33) are for drifting

Part Number TH-L803-1 Part Name Coilover Kit Vehicle 2006-2012 Lexus IS250 Chassis Code GSE20/GSE25 Drivetrain AWD Ride-Height Adjustable Yes Damping Adjustment Non-Adjustable Damper Model StreetPlus Coilovers Bolt-On Yes Damper - Front 44mm Twin-Tube Damper - Rear 44mm Twin-Tube Top Mounts - Front Aluminum Top Mounts Top Mounts - Rear Aluminum Top Mounts Spring Rates - Front 18

so this kit likely offers features for your 1971-1976 Chevrolet Impala like adjustable stiffness

ISC Suspension Street Sport N1 Coilover Kit for 1998-2005 Porsche 911 RWD (996) bilstein-b4-oe-replacement-damptronic-suspension-strut-assembly and jack pad included T-boltsTo your 1998 2005 Porsche 911 RWD (996) the New V2 Adjustable End links: When applicable our V2 N1 and V2 Basic kits will include updated adjustable end links (check application guide to determine adjustable end link eligibility). Spring Perch Isolator Pads: Revised hardened spring perch isolator pads reduce friction, allowing for more efficient preload adjustment and a longer product lifespan. Other New Features: Copper based anti seize lubricant now