Firstly, The Bulletproof Racing Evo 4-9 billet front and rear uprights are precision-machined suspension components developed for Mitsubishi Lancer Evolution IV, V, VI, VII, VIII, and IX models. Manufactured from 7075 aluminium, these performance uprights are designed for enthusiasts seeking substantial weight reduction and revised suspension geometry for demanding street, drag racing, and circuit racing applications.

Often referred to as spindles, front and rear uprights form an important part of a vehicle’s suspension system. They connect key suspension components and help maintain the relationship between the wheel, suspension, and steering system. Choosing suitable uprights is particularly important when building a performance-focused Mitsubishi Evolution, where weight, suspension geometry, and handling characteristics can influence the overall driving experience.

The Bulletproof Racing Evo 4-9 billet front and rear uprights offer an alternative to the original steel components. According to the supplier, the set delivers an advertised weight saving of 22.6 lb compared with the OEM steel uprights. It also incorporates roll centre corrections intended to improve the suspension geometry of the Evolution platform.

Whether you are preparing an Evo 4 for competition, developing an Evo 6 track car, or upgrading an Evo 7, 8, or 9 for drag racing, these billet spindles are worth considering for a dedicated performance build. Before ordering, however, confirm the compatibility requirements for your particular model, especially if you own an Evolution IV, V, or VI.

Bulletproof Racing Evo 4-9 Billet Front and Rear Uprights: Key Features

These Bulletproof Racing suspension uprights combine lightweight construction with geometry changes intended for performance-oriented Mitsubishi Evolution applications.

Key features include:

• Brand: Bulletproof Racing (BPR).
• Product type: Billet front and rear suspension uprights, also known as spindles.
• Vehicle application: Mitsubishi Lancer Evolution IV through IX, subject to the stated fitment requirements.
• Material: 7075 aluminium, according to the supplier.
• Manufacturing: CNC-machined billet construction.
• Advertised weight saving: 22.6 lb compared with OEM steel uprights.
• Front roll centre correction: 0.74 inches.
• Rear roll centre correction: 0.49 inches.
• Intended applications: Drag racing, circuit racing, and performance-focused vehicle builds.
• Product reference: BPR EVO789-FRUPR, as listed by a supplier.

These specifications make the uprights relevant to owners who want to reduce suspension component weight while changing the vehicle’s suspension geometry. The advertised measurements are manufacturer-supplied figures; actual vehicle behaviour depends on the complete suspension setup, ride height, alignment, tyres, and other components.

Why Choose Bulletproof Racing Billet Suspension Uprights?

1. Lightweight 7075 Aluminium Construction

One of the main benefits of these uprights is their 7075 aluminium construction. This aluminium alloy is widely used in demanding engineering applications where strength and weight are important design considerations.

The supplier advertises a total weight saving of 22.6 lb compared with the original steel uprights. Reducing unsprung mass can be beneficial because the suspension has less mass to control as the wheels respond to changes in road or track surfaces.

Firstly, consider the weight reduction as part of your overall vehicle setup rather than as an isolated performance gain. Secondly, evaluate the uprights alongside your wheels, brakes, dampers, and suspension arms. Thirdly, ensure that the selected components are compatible and that the final installation follows the manufacturer’s specifications.

The weight-saving figure is an advertised comparison and should be verified against the exact original components and supplied configuration.

2. Front and Rear Roll Centre Correction

Suspension geometry has a significant influence on how a car responds during cornering, braking, and acceleration. Roll centre position is one of several factors that affect the relationship between the chassis and suspension forces during body roll.

The Bulletproof Racing uprights feature the following advertised geometry changes:

• Front: 0.74-inch roll centre correction.
• Rear: 0.49-inch roll centre correction.

These changes are relevant to Evolution owners developing a suspension setup for circuit racing, drag racing, or other performance applications. The appropriate geometry depends on the car’s ride height, suspension configuration, tyre characteristics, and intended use.

A geometry change should not automatically be considered an improvement for every vehicle. Professional suspension setup and wheel alignment are recommended to establish the correct settings for your particular build.

3. Suitable for Performance-Oriented Evolution Builds

The Mitsubishi Lancer Evolution is popular among enthusiasts who modify suspension systems for sharper handling, improved consistency, or competition use. Billet uprights can form part of a broader chassis development programme in which weight and suspension geometry are carefully considered.

For circuit racing, suspension setup can influence cornering balance and tyre behaviour. For drag racing, the relationship between suspension geometry and weight transfer is an important part of vehicle development.

These uprights provide a hardware option for builders working towards those goals. However, the final result depends on the complete vehicle setup, and the uprights alone cannot guarantee a specific lap time, launch performance, or handling improvement.

Mitsubishi Evo 4-9 Fitment and Compatibility

The product is listed for Mitsubishi Lancer Evolution IV, V, VI, VII, VIII, and IX models. However, the front upright installation requirements differ between earlier and later Evolution generations.

Evo 4, Evo 5 and Evo 6: The supplier specifies that the front uprights require Evo 7-9-style shock absorbers and compatible Evo 7-9 lower control arm ball joints to work correctly. These changes must be considered before purchasing.

Evo 7, Evo 8 and Evo 9: These models are included in the product’s advertised application. Confirm compatibility with your existing suspension components and any aftermarket modifications.

Before ordering, check the following:

• Your exact Evolution model and chassis configuration.
• Front and rear upright compatibility.
• Shock absorber and lower control arm ball joint requirements.
• Brake, hub, wheel, and suspension component compatibility.
• Whether any additional parts or installation modifications are required.

Do not assume that the front uprights are a direct bolt-on installation for every Evolution IV through IX. If your car has a modified suspension or brake package, confirm the complete setup with the supplier before purchasing.

Product Specifications

Specification	Details
Brand	Bulletproof Racing
Product	Billet front and rear uprights (spindles)
Material	7075 aluminium, according to the supplier
Manufacturing process	CNC machining
Advertised applications	Mitsubishi Evolution IV, V, VI, VII, VIII and IX
Advertised weight saving	22.6 lb versus OEM steel uprights
Front roll centre correction	0.74 inches
Rear roll centre correction	0.49 inches
Main applications	Drag racing and circuit racing
Fitment considerations	Earlier Evo models require specified front suspension changes
Package contents	Confirm the exact supplied components before ordering

Who Should Consider These Mitsubishi Evo Uprights?

These billet suspension components may be relevant to several types of Evolution owners.

Track-day and circuit racing enthusiasts: Drivers developing a performance suspension setup may consider the weight reduction and roll centre changes as part of a wider chassis upgrade.

Drag racing builders: Owners developing a dedicated drag car may find these uprights relevant when reviewing suspension geometry and vehicle weight.

Evolution restoration and modification projects: Owners upgrading their suspension should confirm compatibility with their existing hubs, brakes, dampers, and control arms.

Motorsport workshops: Specialists building Mitsubishi Evolution competition cars can assess these components alongside the vehicle’s alignment targets and suspension requirements.

Regardless of the application, professional installation and alignment checks are important after changing suspension uprights.

Buy Bulletproof Racing Evo 4-9 Billet Front and Rear Uprights Online

When shopping for Mitsubishi Evo parts, suspension compatibility should always be a priority. Uprights affect important wheel and suspension mounting relationships, so selecting the correct configuration is essential for a safe and properly functioning installation.

Before you buy online, review the advertised material, weight-saving figures, roll centre corrections, and fitment requirements. If you are upgrading an Evo 4, 5, or 6, pay particular attention to the specified shock absorber and lower control arm ball joint changes for the front uprights.

Mitsubishi Evolution enthusiasts in the United States, United Kingdom, Australia, New Zealand, and Europe can use the product specifications to assess whether these components suit their projects. International buyers should also confirm shipping availability, lead times, and any applicable import charges before ordering.

Because these are specialised performance suspension components, allow time for fitment verification and professional installation planning before beginning your build.

Frequently Asked Questions

What are billet front and rear uprights?

Uprights, also called spindles, are structural suspension components that connect the wheel assembly with relevant suspension and steering components. Their design influences mounting compatibility and suspension geometry.

Which Mitsubishi Evo models are compatible?

The product is advertised for Evolution IV, V, VI, VII, VIII, and IX models. Earlier models have additional front suspension requirements, so confirm compatibility before purchasing.

What material are the uprights made from?

The supplier specifies 7075 aluminium, manufactured using CNC machining. This material is intended to provide a lightweight alternative to the original steel components.

How much weight can these uprights save?

The supplier advertises a weight saving of 22.6 lb compared with OEM steel uprights. Actual savings depend on the original components and the exact supplied configuration.

What are the roll centre corrections?

The advertised correction is 0.74 inches at the front and 0.49 inches at the rear. These figures describe the product’s intended geometry changes; the final suspension behaviour depends on the vehicle’s complete setup.

Do Evo 4, 5 and 6 models require additional modifications?

Yes. The supplier specifies that the front uprights on these earlier models require Evo 7-9-style shock absorbers and Evo 7-9 lower control arm ball joints for correct operation.

Are the uprights suitable for road use?

Suitability depends on the vehicle configuration, local regulations, and intended application. Confirm the manufacturer’s recommendations and have the installation assessed by a qualified suspension specialist before using the vehicle on public roads.

Do the uprights include all installation hardware?

Confirm the package contents with the seller before ordering. Do not assume that additional hubs, bearings, bolts, brake components, or suspension hardware are included unless explicitly listed.

Should I get a wheel alignment after installation?

Yes. Any change to suspension uprights or mounting geometry should be followed by appropriate alignment checks. A qualified technician can establish suitable settings for your vehicle and intended use.

Conclusion

Shop the Bulletproof Racing Evo 4-9 billet front and rear uprights at Evomotorparts.com to explore a lightweight, geometry-focused suspension upgrade for your Mitsubishi Evolution build, and confirm model-specific fitment and installation requirements before placing your order.