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Description
Nissan 350Z (Z33) 2003-2009 - 520 Series Club Racer CoiloversFortune Auto engineers found a need in the market for a capable 2 Way adjustable, prosumer Motorsports coilover system. The result? The Generation 8 520 Series Club Racer. The 520 Series double adjustable coilover is a remarkably sophisticated damper system. The compact system has a 2 Way adjustable canister that is tuned to the specific chassis. The canister is mounted directly to the shock to provide ease of installation and a more plug and play
Fortune Auto engineers found a need in the market for a capable 2-Way adjustable, prosumer Motorsports coilover system. The result? The Generation 8 - 520 Series Club Racer.
The 520 Series double adjustable coilover is a remarkably sophisticated damper system. The compact system has a 2-Way adjustable canister that is tuned to the specific chassis. The canister is mounted directly to the shock to provide ease of installation and a more plug and play system.
The 520 Series double adjustable coilover is a remarkably sophisticated damper system. The compact system has a 2-Way adjustable canister that is tuned to the specific chassis. The canister is mounted directly to the shock to provide ease of installation and a more plug and play system.
Utilizing the highly advanced, Concave Flow Digressive Piston to provide an incredibly dynamic adjustment range along with the ability to upgrade and rebuild; you‘ll never have to buy coilovers again.
AT FORTUNE AUTO, PROGRESS NEVER STOPS.
- Amsoil Synthetic Shock Oil
- Concave Flow Digressive Piston Technology™
- Custom Built – Assembly Certificate and Dyno Graph Supplied with Shocks
- 5 Year Limited Manufacturer’s Warranty
- 24-Step Rebound and 8-Step Compression Adjustable Dampers
- Monotube Damper with High Pressure Nitrogen
- T6 6061 Aluminum Mounts and Camber Plates
- Rebuildable and Revalveable at our Facility in Richmond, VA
- Modularity – Upgradeable to 2-Way or 3-Way Canister
No Revalves Necessary
The ultra wide range of adjustment offered by the CFD piston allows for the convenience of tuning your suspension without having to revalve your dampers. A conventional shock absorber can withstand a 2kg spring rate difference before requiring a revalve, whereas the Concave Flow Digressive Technology has a broad range of 8kg spring rates. This is invaluable for tuning your suspension quickly at the track on race day.
Jekyll and Hyde
The Concave Flow Digressive Piston allows for a Jekyll and Hyde personality. Lower spring rates can be stiffened up by using the wide damping range as an artificial spring rate, while higher spring rates feel much smoother. The large adjustment range contributes to a comfortable ride on the street and unyielding performance on the track, all with the twist of a single adjustment knob.
520 Series Coilovers are custom, hand-built to order. Most applications have a 4-7 week lead time. Lead times for certain applications and peak season orders may vary.
**Stock coilover photos shown. Your coilover mounts and colors may vary.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 14 reviews
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Product Reviews
★★★★★ 5
No more migraines
I have suffered migraines for years. It was so bad in December 2025 that I begged my neurologist for help. He suggested several things that I was unwilling to try due to the side effects. However, he recommended I try 400 mg daily of Magnesium L Threonate. January 2026, I started the taking it. The first month only 3 migraines for the whole month after years of 3-4 migraines a week. Its May 2026 and I have only had 3 more migraines this year. I highly recommend this product for migraine prevention.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
The best Magtein I have tried thus far
I take double the dose because when I double the dose it improves my ability to pay attention and I am less distracted. Yes I have ADD but no longer take Adderall for it. Being 56 years old Magtein really improves my memory and restored it to like new by ten days of use. Shockingly It woke me up from a light sleep late evening as memories rushed in and I have been taking it ever since. I have been taking it 7 months now and over time it has slowly but surely improved my short term memory so that it also is nearly the same as before. I have seen slight improvements in working memory enough to be encouraged It may become an advancement from a historical standpoint. This is my second bottle by Teraputics. I was taking 2 bottles of NOW brand per month for my memory and concentration because it is the cheapest but when Amazon ran out Teraputics is the product I decided to try next. But I like this brand better as it seems more concentrated or I should probably say more bio-available so I decided to by it and pay the extra money over NOW brand. I just wish it were cheaper. I am hoping to ask them for a deal if I buy 20 bottles in advanced as it is a must have for me. With this second purchase they included a free bottle coupon and not a buy one get one free. Right now I am very happy to get the free bottle.
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Reviewed in the United States on March 23, 2019
★★★★★ 3
Daily Intake on Label Confusing
Label was not clear regarding milligrams per pill. Title label stated 2000mgs per serving (of 4 pills), but “supplement label” states 4 pills is 144 mgs per serving as a 34% of daily value.
Very confusing. Not sure which metric to go by for daily intake.
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Reviewed in the United States on December 22, 2025
★★★★★ 5
Great supplement
I like the way it helps me relax to sleep and helps to keep me more focused
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Reviewed in the United States on June 3, 2026
★★★★★ 5
No diarrhea
My wife had severe diarrhea using a common type of magnesium, taken at doctor's recommendation. Doctor recommended this type, L-Threonate. Totally eliminated diarrhea problem.
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Reviewed in the United States on May 15, 2026