Tein Street Basis Z Coilovers Ford Mustang S550 V8 GT Premium 15+

Lower. Sharper. Sorted. The go-to height adjustable suspension for Mustang 5.0 GT S550 2015+

Give your Ford Mustang 5.0 V8 the stance and control it deserves with this TEIN height adjustable suspension kit. It delivers a purposeful drop, improved body control and confident road manners without wrecking day-to-day comfort. Perfect for UK roads, fast-road driving and weekend blasts, it is a superb-value upgrade for any S550 GT owner looking for a quality suspension refresh and a tidy ride height.

What you will feel

• Height adjustment via threaded collars for the exact drop you want and repeatable corner balance
• Refined double-tube damper construction for a supple ride and excellent composure over rough tarmac
• Retains factory top mounts for low noise and OE-like refinement
• Improved turn-in, reduced body roll and a lower centre of gravity for confident cornering
• Consistent performance thanks to premium damper fluid that resists foaming and heat fade
• Cold-formed SAE9254 coils designed to resist sag and maintain ride height over the long term
• Comprehensive corrosion protection with TEIN’s signature green powder finish and treated adjustment threads
• Protective dust gaiters keep grit off the piston rod for long service life

Why TEIN for your S550

TEIN’s sealed-body approach and careful valving bring you a sweet spot of comfort and control at a price that makes sense. Longer effective stroke with a gentle initial response smooths out broken UK surfaces, yet the car stays planted when you push on. It is a proper upgrade over tired OE shocks and a smarter choice than budget lowering springs alone.

Tried and trusted by us

We run these on customer Mustangs and love the balance. Owners report a lower, cleaner stance, noticeably tighter handling and zero fuss in daily use. No creaks, no clunks, just dependable performance and a ride you can live with.

Fitment

For Ford Mustang S550 5.0 GT 2015 onwards. Uses your original upper mounts for straightforward installation and an OE-quality finish.

Installation and setup

Want it fitted right first time with alignment to match your goals. Book our professional installation at MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a fitting quote and setup advice.

Ideal search terms for this product

Mustang suspension upgrade UK, S550 lowering kit, height adjustable shocks, coilover suspension kit, Mustang GT 5.0 Coyote handling upgrade, ride height adjuster, threaded body damper, fast road suspension, track day ready street setup, comfort focused twin tube dampers, anti corrosion coated coilover, factory top mount compatible, stance kit, drop kit for Mustang, shock and spring replacement, improved body control, reduced body roll, better turn in, daily driver friendly suspension, green powder coated coilover, ZT treated threads, long stroke damper, no-sag springs.