Tein Street Basis Z Coilovers - 03-08 Nissan 350Z & 03-06 Infiniti G35

Regular price $559.55 USD Sale price $559.55 USD Regular price $620.00 USD
Sale 9.75% $60.45 USD (9.75%)
Special order - Ships in 8+ weeks
SKU: teinGSP26-8UAS2
Product Description
The Tein Street Basis Z damper is the latest iteration in their entry coilover line-up. Developed to provide a sporty ride and aggressive stance, the shortened shell case design provides optimum damper stroke at lower vehicle ride height. Vehicle ride height is adjustable via the ZT coated threaded sleeve and updated internal components / external coatings increase durability.

New to the Street Basis Z are the addition of fully sealed damper structures and a streamline manufacturing process that greatly reduces cost to build and MSRP. As such you can expect a great set of height-adjustable coilovers for daily spirited driving at a low price.
Made in Japan under strict quality control standards and developed by highly trained suspension engineers.

  • Infiniti G35 [V35 Sedan RWD] (2003, 2004, 2005, 2006)
  • Infiniti G35 [V35 Coupe RWD] (2003, 2004, 205, 2006, 2007)
  • Nissan 350Z [Z33; includes Convertible] (2003, 2004, 205, 2006, 2007, 2008)


  • Steel Twin Tube construction
  • Larger piston diameter for strut type front and rear (22mm)
  • Ride Height adjustable via spring seat
  • Powder coated damper body
  • Fully sealed damper structure
  • Full-Length Dust Boots
  • 1-piece Aluminum Spring Seat with Delrin Thrust Washer
  • Spring Rates (front / rear): 9.0 / 9.0 [kgf/mm]
  • Drop Range 350Z (front / rear): 0 - 3.1 / 0.5 - 2.1 [inches]
  • Drop Range 350Z Convertible (front / rear): 0.2 - 3.3 / 0.4 - 2.0 [inches]
  • Drop Range G35 Sedan (front / rear): 1.4 - 4.4 / 1.5 - 3.2 [inches]
  • Drop Range G35 Coupe (front / rear): 0.6 - 3.7 / 0.7 - 2.3 [inches]

Extended Information

  • Shock Design: Twintube
  • Height Adjustable (front / rear): See Features
  • Dampening Adjustable: N/A
  • Rebuildable: No
  • Spring Rate (front / rear): 9.0 / 9.0 [kgf/mm]
  • Springs Size: N/A
  • Camber Plate: No
  • Pillowball Mount: No
  • Warranty: One Year

To provide faster delivery and turn around time; Kami Speed ships products out from different warehouses throughout the United States. Usually averaging 1-4 business days for processing prior to shipping.

Depending on the package, we ship using different carriers according to the item's location, content, and size.

Freight truck & international items, will require up to 7 business days to ship due to size and logistics.

All orders made after 3:00pm ET will be shipped or processed the next business day.

Unless otherwise noted as "In Stock" or exact ETA. Special Order items have an ETA of 5+ weeks.

Orders over $500 will ship insured and over $1,000 with signature and insurance in order to guarantee delivery. Orders over $1000 may not be able to ship to a different address not listed as the billing address or confirm payment address from the form of payment used. Orders with suite numbers, different billing, or apartment numbers will require signature if valued over $100.

All international orders outside of the USA are subject to duties and taxes fees per your countries jurisdiction and determined by customs.
Kami Speed serves the right to ship using an alternative method if we see it fit, in order to expedite shipping and reduce your rate depending on product value.

Processing and logistics on in stock international orders can take up to 7 business days to process & ship.

In stock, non special order items can be returned within 30 days of the product arriving to your house or place of work.
Returns will NOT be accepted on Clearance Items, Final Sales, Special Orders, Opened, Installed, Incomplete, or Otherwise Used Products. In order to initiate a return, an RMA number must be requested and approved via e-mail. All returns will be subject to a 20% restocking fee minus complete shipping cost (roundtrip).

Any processed orders that have not shipped will incur a 6% cancelation refund fee unless the product was not available to ship within a timely manner. No fee will be incurred if used as store credit.

For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.

WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to www.P65Warnings.ca.gov/passenger-vehicle.

Customer Reviews

Based on 1 review
Calvin C.
Great product. Installed on g35 coupe

Worth every penny. Got the car aligned after installation of suspension with a mildly aggressive alignment. The suspension greatly reduced nose dive under heavy braking and also lift during acceleration out of corners. Steering response was improved over OEM sport suspension. Shocks are well damped, no oscillation while hitting bumps at high speed. Suspension definitely is great for spirited driving, a tad soft for track duty. Very tame while cruising around town, is able to absorb bumps and even potholes without the crashing feel/harshness all while being communicative and letting the driver know road conditions. Job well done to Tein for making a great budget suspension system. Thanks kamispeed for prompt responses to emails and quick delivery from manufacturer. A+