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About this page:

Contents:

About Our Company

About Our Products

DZT-Line vs LZT-Line

FAQ

General fitting instructions

 

About Our Company

As a company, Prosport Performance Ltd can trace its roots back to the early 2000s and began when we saw that the performance suspension market was not catering for an ever-growing demand for a cost-effective quality lowering product. 

Prosport began selling a range of performance suspension and tuning parts in 2002, gradually refining our range until we were proudly able to introduce our own brand in 2012 when the company was relaunched as Prosport Performance Ltd. Since then our sales of Coilover Kits, Lowering Spring Kits and Wheel Spacers have gone from strength to strength.

Prosport is a UK based business and together with our European development and testing facilities we are able to monitor the quality of our products so we can be confident that our customers will get the best value for money possible.

 

About Our Products

Prosport Coilover Kits are manufactured to our specifications under the strict control of ISO9001:2015 and TUV Certification, so you can be confident that our Coilover Kits have the quality you can trust and due to our huge buying power we are able to offer unbeatable value for money on our range of Coilovers and Lowering Spring kits.

Prosport has a great range of Coilover kits to fit all popular makes including VW, Audi, BMW, Ford, Vauxhall, Seat, Skoda, Mercedes, MINI, Volvo, Peugeot, Mazda, Fiat and Alfa Romeo. Prosport has a constant programme of development with new Coilover Kits being introduced regularly. 

All Prosport Coilover kits are covered by a minimum of 12 Months Warranty. (see 'Returns' section for full Warranty Info.)

A range of shortened drop links is available to complement our Coilovers and Lowering Spring kits.

Prosport Lowering Spring Kits (Sportsprings) are also made only for us and most kits have the benefit of TUV Certification for your peace of mind.  The Prosport range of Lowering Springs is available for all of the makes listed above and a few more! When you buy a Prosport Lowering Spring kit, you'll enjoy Warranty cover for as long as you keep the car.

The product listing you are looking at will tell you if the product is TUV or ISO certified.

Prosport also sell a range of Wheel Spacer Kits.

 

DZT-Line vs LZT-Line

The DZT-Line is our new range of Coilovers, offering the same levels of technical specification as our original range with enhanced component and finish quality. Our buying power has allowed us to negotiate great prices for the DZT-Line, which we are able to pass on to our customers in the form of very competitive purchase prices.

Product features:

- Manufactured to ISO 9001:2015 quality standards

- 2 year warranty (see T&Cs)

- High quality Zinc plated Coilover body for enhanced corrosion protection

- Durable powder-coat spring finish

- Red Springs

- Progressively wound springs

- Dampers uprated by 30% over standard (non-Sport) units

 

The LZT-Line is our original range of quality assured Coilovers, with a wider range of applications.

Product features:

- Manufactured to TUV quality standards

- Minimum 12-month warranty (see T&Cs and product listing for details)

- Zinc plated Coilover body for enhanced corrosion protection

- Durable powder-coat spring finish

- Blue Springs

- Progressively wound springs

- Dampers uprated by 25% over standard (non-Sport) units

 

Frequently Asked Questions

I want to lower my car but I've heard that Coilovers give a really hard ride.

Coilovers will firm up the ride on your car and the lower you go, the harder it will be. Prosport Coilovers get a lot of praise for the ride quality because we have designed them to give a good balance between a sporty and compliant ride. So, don't worry, Prosport Coilovers will not shake your teeth out!! 

What's the difference between LZT-Line and DZT-Line Coilovers?

Please see the details further up this page.

Can I leave the adjusters out to get a lower ride?

No. The adjusters, springs and dampers are matched to offer a lowering amount as shown in the product description. Leaving the adjusters out means the dampers are in danger of suffering damage or leaking and there’s a chance that the springs could become displaced. 

Can I lower the car by more than the amount in the product description?

No. Because the components are designed to work together and have been tested to be safe and reliable within the lowering amounts described, the car must be kept within the lowering range to make sure your Prosport Coilovers give you long-lasting and safe service. 

What’s the warranty?

Please see the warranty section on the ‘Terms and Conditions’ page for details of the different warranties on Prosport products: T&Cs and Warranty Information 

Where do you ship to?

The prices on the website include shipping to mainland England, Wales and Scotland (except Scottish Highlands). Prices for deliveries to other GB addresses will be added at checkout after you input your details. We can also ship to most worldwide addresses. International shipping rates are based on the size and weight of the item, so please contact us, providing the product SKU and destination, so we can advise on shipping costs. 

Do I need any extra parts?

A Prosport Coilover kit contains everything you need to install the product. The parts contained in the kit are, in most cases, a direct replacement for the original equipment equivalent components. Everything else is kept (like suspension top mounts). In some cases, and depending on the amount of lowering, shortened drop links/anti-roll bar links are recommended, this is shown on the product listing. 

Can I fit lowering springs or Coilovers myself?

Due to the safety-critical nature of vehicle suspension, Prosport products must only be fitted by a person who holds an automotive industry-recognised training certificate (NVQ, City & Guilds etc.). This is also a condition of the product certification and Prosport Warranty. Please see the warranty section on the ‘Terms and Conditions’ page for details of the different warranties on Prosport products: T&Cs and Warranty Information

How soon will I receive my order?

Please see the ‘Delivery’ page for details of dispatch and shipping times available: Delivery Information

 

General Fitting Instructions

Before commencing any work on the vehicle, ensure that all safety precautions have been implemented.

 

1.     Installation of Lowering Coil-springs and/or Coilovers must be carried out by a person with the relevant training* and experience. This is a condition of the product certification and of the warranty cover for the product.

2.        Make a note of the standard ride height, by measuring vertically from the centre of the wheel to the lower edge of the wheel arch. This data will be needed when setting up the new ride height of the vehicle.

3.        Make sure you have identified the correct parts to be installed in the front and the rear of the vehicle.

4.        Always follow the guidelines of the vehicle manufacturer when you disassemble the original equipment strut.

5.        Make sure you observe the orientation of the standard components. The shock absorbers supplied in the Coilover Kit will be a direct replacement for the standard equipment parts. Pay particular attention to the position of any washers etc. and be sure to re-install them in the same position.

6.        Before installation, prime the shock absorbers by fully compressing and allowing them to fully extend – do this at least 4-5 times or until the full damping effect is achieved.

7.        Always apply a liberal coating of Copper Grease to the threaded sections, particularly in the area where the lock rings and/or adjuster rings will be positioned.

8.        Some of the standard vehicle suspension parts will be needed during installation (for example: suspension top mounts/bearings/bolts etc.), do not throw anything away yet.

9.        In most cases, for kits with separate springs and ride-height adjusters, the rear spring rubber seats should be removed before installing the replacement spring/adjuster assembly.

10.     We recommend fitting new suspension top mounts when installing a Coilover kit.

11.     Use ONLY suitable and/or special tools recommended by the manufacturer of the vehicle. Only use hand tools and do not use an air wrench/ air-gun / impact wrench during fitting. Only use the built-in devices on the shock absorbers to prevent the piston rods from rotating whilst installing securing nuts.

12.     For shock absorbers with ‘eye’ mounting points, do not tighten the securing nuts/bolts until the vehicle has been fully lowered to the ground.

13.     Do not overtighten the piston-rod (top) nuts. Recommended torque settings for the piston-rod (top) nuts are according to the table below:

M8

M10x1

M10x1.25

M12x1.25

M12x1.5

M14x1.5

M16x1.5

25Nm

20Nm

20Nm

35Nm

40Nm

50Nm

50Nm

14.     Torque settings for all other suspension nuts/bolts must match the vehicle manufacturer’s specification.

15.     Always fit all parts supplied and do not modify any of the supplied components.

16.     In the case of Coilovers, when setting the ride height of the vehicle, pay attention to the advertised lowering amounts and never lower by more than the maximum drop specified for the kit. Refer to the standard ride height measurement as described in step 1.

17.     Do not overtighten the adjuster lock rings.

18.     After installation of Sportsprings or Coilovers it is necessary to check the toe, kpi and camber values. Lowering a vehicle will affect the suspension geometry, adjustments should be made to the geometry to bring the vehicle in line with the vehicle manufacturer’s specifications where possible.

19.     Make sure that the chassis and body has adequate ground clearance. It is also very important that the tyres and wheels have good clearance from the suspension components and bodywork.

20.     All of the wheel/tyre-combinations which are fitted as standard, factory equipment to the vehicle can be used with any of our Sportspring and Coilover kits. Use of non-standard-equipment wheels is not recommended for safety reasons.

21.     After installation and suspension adjustments have been carried out, check all functions which are affected by the vehicle ride-height, such as headlamp aim, separate automatic levelling device etc. Make any necessary adjustments.

22.     All modifications and conversions to your vehicle must be declared to the relevant authority and your insurance company when it is operated on public roads.

23.     Our Sportsprings and Coilovers are tested for suitability on standard production vehicles. Our Sportsprings and Coilovers may not provide the desired effect if non-standard equipment or accessories are installed or modifications have been carried out such as engine swap, engine ancillary equipment change, larger wheels, larger brakes, LPG system, ICE installs, interior modifications and when standard equipment has been removed from the vehicle to reduce weight etc.

24.     You must always fit bump-stops and dust covers on the front and rear whether provided in the kit or installed on the standard component. Both products are not always included. The parts can be purchased separately if required.

25.     Installation of the components must be carried out in accordance with the guidelines of the vehicle manufacturer if there is not a specific installation instruction provided.

26.     According to vehicle version and lowering amount, shortened anti-roll bar links (drop links) may be required and/or as recommended by Prosport.

27.     For vehicles fitted with electronic damping control, electronically controlled self-levelling suspension or active suspension, this must be checked and re-set or re-coded as required by a garage with suitable equipment.

28.     After installation, carry out a short road test, then measure the new ride-height as described in step 1. The new (minimum) ride height should be at least the standard ride-height (as measured in step 1) minus the maximum drop stated in the product listing. If the new ride height is too low, adjust the vehicle to the correct ride height. Failure to set the vehicle to at least the minimum permitted ride height as described above will invalidate the warranty.

 

 

*City and Guilds Motor Vehicle Level 3, NVQ Motor Vehicle Maintenance and Repair Level 3 or equivalent. The installer should have experience of installing and setting-up Coilover Suspension.

 

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