Frequently Asked Questions (FAQ) | Wheels 'N Customs

You can indicate on the checkout page during the ordering process that you would like us to fit the part. As soon as the part arrives with us, we will contact you straight away to make an appointment. For stock items (ordered before 16:00) you will be contacted within 48 hours to schedule the appointment. During fitting you can relax in our waiting area with a cup of coffee.

The fitting rates are transparent and depend on the type of part (front splitters, diffusers, side skirts, spoilers). We apply a competitive workshop rate of € 98,95 incl. VAT per hour, with small fitting materials and adhesive/sealant in accordance with TÜV NORD guidelines included. For the current guide rates per specific part, always consult our central fitting page via the workshop block below.

Yes, if technically possible we can connect the original exhaust through to the new trims. This requires approx. 1.5 to 3 hours of additional work on a time and materials basis. Although this is not 100% airtight at the rear (compared to a fully welded system), it ensures in winter conditions that the exhaust fumes exit neatly through the trims instead of flowing under the car. Read all details in our guide on Diffuser Fitting & Tailpipe Trims.

Polyester (GFK) is hard, brittle and cracks quickly when contacting speed bumps. Moreover, it requires extensive sanding and filler work. Automotive ABS plastic is flexible, impact-resistant and is formed based on 3D laser scans for a perfect OEM fit. See the full analysis in our guide ABS vs. Real Carbon vs. Polyester Bodykits.

Only if it is installed incorrectly (for example, using 3M tape only). At high speeds (130–250 km/h) enormous downward forces arise. Wheels 'N Customs always installs mechanically with rivets, stainless steel bolts/nuts and industrial body adhesive in accordance with TÜV guidelines. Read more in our guide on Front Splitters & High Speeds.

Lowering springs: These only replace the original steel springs in the suspension and provide a fixed, pre-determined drop (e.g. 30 mm). This is more economical and often uses your original shock absorbers.

Coilover kits (coilovers): These replace both the springs and the complete dampers and feature robust threading on the body. This allows you to adjust the ride height afterwards steplessly and with millimetre precision. Read our in-depth comparison: Lowering Springs vs. Coilover Kit vs. Airride Guide.

Installing a spring set takes on average 2 to 4 hours in the workshop. Installing dampers or complete coilover kits takes 3 to 5 hours. Our hourly rate is € 98,95 incl. VAT. The total costs, including the mandatory professional 3D alignment, are calculated on a time-and-materials basis depending on vehicle type and seized bolts.

If a coilover kit, spring kit or deactivation module (such as a KW ESC or Eibach Pro-Tronic kit) needs to be taught in, programmed or calibrated in the vehicle’s ECU to prevent warning messages, this may involve additional costs and labour. Read more in our guide: Electronic Dampers Deactivation Guide.

For installing a spring set, coilover kit or a complete suspension replacement, your vehicle must be with us for at least 1 working day. This gives us sufficient time for a professional installation (including properly greasing the threads), an extensive test drive and an extremely precise 3D alignment.

Lowering changes the wheel geometry (such as camber and toe). Without alignment, tyres will wear extremely quickly on one edge, handling deteriorates drastically and your fuel consumption increases. That is why 3D alignment is always mandatory with our suspension installations. On modern vehicles with cameras, adaptive cruise control or lane assist (ADAS), we also perform a calibration where necessary. See the details in our guide 3D Alignment after Lowering.

For cars with original air suspension from factory (such as models from Audi, Porsche, Mercedes or Range Rover) special electronic lowering modules are available, such as the renowned H&R ETS system. With these you can lower the car safely and electronically via the on-board computer by approx. 40 mm, without any mechanical steel springs needing to be modified.

KW V1 has a fixed sporty damping. KW V2 offers adjustable rebound damping (rebound, 16 clicks). KW V3 allows independent adjustment of rebound and compression damping (bump, 12 clicks). KW V4 is high-end with separate high-speed and low-speed compression adjustment. Read the complete manual in our guide KW Coilover Setup Guide.

Cast wheels are poured in a mould. Flow Formed wheels are rolled under high heat and pressure after casting, which densifies the crystal structure for 20–25% weight saving and higher stiffness. Forged wheels are pressed and machined from a single solid block of 6061-T6 aerospace aluminium for maximum strength at the lowest possible weight. Read the full comparison: Flow Formed vs. Forged Wheels Guide.

Hang a plumb line along your wheel arch edge and measure the distance to the tyre sidewall. Subtract 3 to 5 mm as a margin for suspension compression. Always pay attention to the required minimum thread engagement (6.5 to 8 turns) and the height of the hub-centric spigot. Read our step-by-step guide: Spacers Complete Guide.

Yes, provided the calculated difference in rolling circumference between the front and rear axle remains less than 1%. A larger deviation can lead to overheating or permanent damage to the transfer case. Calculate the margins in our guide Staggered & xDrive Fitment Guide.

This depends on the so-called X-factor of the wheel: the physical curvature on the rear of the spokes. With concave wheels, the spokes angle inwards from the rim edge, which can contact the outer side of a 4- or 6-piston caliper. See the solutions via Concave Wheels & Big Brakes Fitment.

For vans (such as the VW Transporter, Mercedes Vito) and motorhomes, the Load Rating (load capacity) is vital. The wheels must be able to carry at least half of the highest axle load on your registration document (often 850 kg to 1250 kg per wheel). Read all about axle loads in our guide Heavy-Duty Van & Motorhome Wheels Guide.

With original factory wheels, a regular drop will almost never rub in the arches. However, if you have wide aftermarket wheels or an extremely low ET value, fitment is crucial. Our fitment experts are happy to calculate in advance, to the millimetre, whether your wheel and tyre combination will safely clear the wheel arch edges at your desired drop.

Axle-back replaces only the rear silencers. Cat-back replaces the complete system from the catalytic converter (for vehicles from before 2018). OPF-back replaces the section from the particulate filter (for vehicles from 2018 onwards) and is 100% emissions- and APK-legal. Downpipes sit directly after the turbo and reduce backpressure for maximum bhp gains. Read the full comparison: Exhaust Systems Fully Explained.

A high-quality 200-cell HJS sports catalytic converter with ECE approval will pass the four-gas test without issues and prevents engine management faults. A catless (decat) downpipe will definitely result in APK failure and fault code P0420. Read all legislation in our guide Downpipes: Sport Cat vs. Decat & APK.

A valved exhaust is only legal on public roads when it has an ECE type approval. The system must automatically remain within the legal decibel limits in built-up areas. Read more about regulations via Valved Exhaust Systems Legislation & Decibel Requirements.

The Eibach Pro-Kit (black springs) provides a subtle OEM+ drop (25-30 mm) and retains virtually the original, comfortable ride. The Eibach Sportline (red springs) lowers by up to approx. 50 mm and is specifically intended for the enthusiast seeking a more aggressive, sportier stance. Also read: Eibach vs. H&R Springs Comparison.

Bilstein B4: The standard OEM replacement in top-quality gas pressure design (black).
Bilstein B6: A high-quality, firmer performance damper (yellow) for use at the original ride height.
Bilstein B8: A sport damper with a shortened piston rod, specifically designed to work perfectly and safely with lowering springs.

Yes! ST Suspensions is a fully-fledged brand of the KW Automotive Group. The internal damper technology and valving stacks are virtually identical and come from the same development pipeline. Whereas KW opts for stainless steel housings (Inox-line), ST uses galvanised steel housings. This results in an excellent price-to-performance ratio.

When you replace your valuable factory adaptive (electronic) suspension with a mechanical coilover kit, fault messages will immediately appear on your dashboard. These plug-and-play ‘decommissioning kits’ deactivate only the electronic damper control without errors, while all other functions of the onboard computer remain perfectly intact.

We supply all tyre sizes from renowned brands at very competitive rates. Fitting rates per tyre (incl. 21% VAT):

• 12 to 22 inch: € 34,95 per tyre
• 22 to 30 inch: € 37,50 per tyre

Note: For stringent warranty and safety reasons, we do not accept or fit customer-supplied tyres or tyres purchased elsewhere in our workshop.

At our premises in Nijkerk we have a professional, climate-controlled storage facility for your summer and winter sets. Your benefits at a glance:

• No more lugging sets around and no dirty rear seat in your car.
• Your set is stored safely at a constant temperature (we do not use damp outdoor containers).
• At the seasonal changeover we always check tyre pressures and wheel balancing.
• Ideal for private customers and businesses in the Amersfoort, Nijkerk, Leusden and Hoevelaken region.

Read more in our guide: Tyre Hotel & Seasonal Changeover Nijkerk.

Since October 2024, tyres with M+S marking only are no longer permitted in wintry conditions in Germany. The 3PMSF Alpine symbol (mountain with snowflake) is legally required. In Austria there is also a minimum tread depth of 4 mm. See all fines and rules in our guide Winter Tyre Legislation Europe.

Tyre stretch is permitted for the APK provided the tread lies within the bodywork and the tyre pressure is increased by 0.2 to 0.4 bar to prevent the bead from unseating. Extreme stretch, however, increases the risk of rim damage. Read all guidelines via Tyre Stretch & Safety Guide.

According to the official RDW inspection requirements, wheels and tyres may protrude a maximum of 30 mm (3 cm) beyond the bodywork, provided there are no sharp parts protruding and the tyres do not rub anywhere at maximum compression and steering angle. The track width may increase by a maximum of 2% without reinspection. See all standards in our guide APK Rules Wheels & Tyres Netherlands.

In Belgium a minimum ground clearance of 9 cm applies (11 cm under flexible parts). At the inspection after lowering, an official GOCA/TÜV lowering certificate, a mounting certificate completed by a recognised mechanic, and a current 3D alignment report are legally required. See the complete step-by-step plan via Belgian GOCA Inspection & Lowering Guide.

ECE approval: 100% exempt from inspection throughout the EU; direct fitment with no paperwork. ABE (Allgemeine Betriebserlaubnis): German type approval, exempt provided the car is original. TÜV Teilegutachten: A technical inspection report with which the part can be registered with the RDW, TÜV or GOCA. Read more in our guide TÜV, ABE & ECE Explained.

Are you active in the automotive sector (Car Dealership, Tuning shop, Car Detailing Specialist)? Then you can become a B2B partner. After approval of your Chamber of Commerce and VAT numbers you will gain access to sharp business margins, free shipping from € 250 ex. VAT, and one central purchasing platform for 250+ top brands. You can easily apply via the ‘Dealer Application’ button in the footer of our website.

On parts fitted in our workshop we provide a standard 1-year installation warranty (provided the vehicle is used within legal guidelines and for normal street use).

Important exception: No installation warranty or liability is given on light components that are attached solely with 3M tape (such as some small roof spoilers or trims).

Have your wheels or other ordered parts unfortunately suffered transport damage? We will of course be happy to resolve this for you as quickly as possible. To initiate the claim and investigation process with the courier or manufacturer, we need specific photo documentation.

For this, please see our full and detailed Damage Procedure & Transport Damage page. It explains step by step how to report this and which photos (of the box, the labels and the product) are required for swift processing.

Is a part missing from your shipment or did you receive an incorrect version/fitment? Stop unpacking and installing immediately. In this case a strict processing ban applies to prevent further damage or loss of value.

Keep all original packaging and respond only directly (Reply) to your invoice e-mail with photos of the received box, the type labels and the contents. For the exact step-by-step procedure and conditions, see our full Incomplete or Incorrect Delivery & Processing Ban page.

Does your ordered part, wheel or mounting hardware unfortunately not seem to fit your vehicle? Stop installing immediately to prevent irreversible damage (and the lapse of your right of return).

To assess this accurately and, if necessary, escalate it with the manufacturer, we need specific photos from you: three overview photos from knee height in daylight, a photo of the item sticker and a photo of the engraved product code. See our full Help with Fitment Issues (Fitment Check) page.

Do you have a question about the status, delivery or contents of your order? To protect your privacy and work strictly in accordance with AVG/GDPR guidelines, we handle order and personal data only via your original invoice e-mail.

We therefore ask you to always reply directly (Reply) to the e-mail with your invoice or order confirmation. We cannot simply verify separate e-mails. For more information, see our Order Questions & Privacy Protocol.

Standard unused items in their original packaging can be withdrawn within 14 days via the invoice thread. Physical handover of returns to the workshop in Nijkerk is expressly prohibited; everything must be sent via parcel post to our central warehouse.

Custom work (Art. 6:230p BW): Wheels that have been custom drilled (custom PCD), machined ET values, assembled wheel sets (tyres on wheels) and specific factory production orders are legally excluded from withdrawal or are subject to restocking fees of 10% to 40%.