Riaction 2009-2021 Nissan 370Z (True Rear Coilover) Traction Plus Ultra Coilovers
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
Engineered for the Nissan 370Z Z34, the Riaction Traction Plus Ultra (TPU) Coilover System is designed to maximize stability, traction, and control on the Z34 chassis. With a true rear coilover configuration, this system improves rear-end response, enhances braking composure, and delivers more consistent traction during aggressive cornering and acceleration.
At the core of the TPU system is a digressive piston design, providing strong low-speed damping for sharper turn-in and improved roll control, while maintaining composure as suspension velocity increases. This results in more predictable weight transfer, greater high-speed stability, and increased driver confidence during spirited driving and track use.
Built for drivers who demand precision and durability, the TPU system incorporates reinforced components and advanced materials to handle repeated high-load conditions without compromise.
Coilover Specifications
- Full-Length Ride Height Adjustment
- 32-Level Damping Adjustment
- Digressive Piston Valving
- Mono-Tube Damper Design
- Nickel-Coated Shock Body for Corrosion Resistance
- Hex Screw Preload Collar Locking System
- True Rear Coilover Conversion
- Signature Orange Coating on Non-MacPherson Components
- Pillowball Upper Mounts (Where Applicable)
- 44mm High-Flow CNC 6061 Aluminum Piston
- CNC 6061 Aluminum Floating Piston
- Polyurethane Oil Seals
- SAE9254 Cold-Wound Performance Springs
- Multi-Thickness Valving Shims
- Low Gas Pressure Internal Design
- 7.5W Compounded Suspension Fluid
- Fully Rebuildable Construction
Spring Rates
- Front: 12K
- Rear: 8K
What’s Included
- Full set of 4 coilovers (front and rear)
- Spanner wrenches
- Damping adjustment knobs
Warranty
2-Year Factory Warranty against manufacturer defects.
International Orders
For international inquiries, contact:
info@riactionshocks.com
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.