If you've ever scrolled through an online marketplace and found a set of tubular control arms or a disc brake conversion kit at a price that seemed way too good to be true, you already know the temptation. When you're working on a build with a real budget, saving a couple hundred bucks on a single part feels like a win. But here's the thing, that deal might end up costing you a lot more than money.
Counterfeit aftermarket performance parts are flooding the market, and the problem is getting worse every year. We're not talking about generic economy parts from a known supplier. We're talking about direct knockoffs of name-brand products, produced by sellers with no engineering oversight, no quality control, and no accountability. They show up in familiar-looking packaging, sometimes even stamped with logos or part numbers that aren't theirs to use, and they end up on cars and trucks driven by people who have no idea what's actually bolted underneath them.
This isn't just a nuisance. It's a safety issue, and it's one that every builder and shop needs to understand. It's also the reason Classic Performance Products has spent over three decades doing the exact opposite. Every part that carries the CPP name goes through our in-house engineering process, our quality checks, and our on-vehicle testing, and every part is backed by a lifetime guarantee. When you buy from CPP, you are not rolling the dice. You are getting the real thing. This guide will walk you through what counterfeits actually are, why they are dangerous, and how to make sure the parts on your build are genuine.
What Makes Counterfeit Aftermarket Parts So Dangerous
When a legitimate manufacturer like Classic Performance Products develops a part, say a set of control arms or a power steering gearbox, there's an entire process behind it. Our engineers design it, prototype it, test it on actual vehicles, refine tolerances, source proper materials, and put it through real-world conditions before it ever reaches a customer. That process exists for one reason, to make sure the part doesn't fail when it matters most.
Counterfeit parts skip all of that. What you're getting is a copy of the external shape with none of the internal integrity. The engineering is wrong. The welds are inconsistent. The heat treatment is either skipped or done improperly. Tolerances are loose. And the finished product might look close enough in a photo to pass, but under stress, the kind of stress that steering, brake, and suspension components deal with every single time you drive, it's a completely different story.
A control arm that fractures at highway speed. A brake caliper bracket that cracks under heavy braking. A steering box that develops sudden play in the middle of a turn. These aren't hypothetical scenarios. They're the real-world consequences of installing parts that were never properly engineered or tested.
Steering and Brake Components Are the Biggest Concern
Not all parts carry the same level of risk. A knockoff valve cover or a cosmetic trim piece isn't going to put anyone in danger. But steering and brake components? That's a different conversation entirely.
These are the parts that keep your vehicle under control. They have to handle constant loads, vibration, heat cycling, and the forces generated during hard stops and maneuvers. When a counterfeit steering component fails, you lose the ability to direct the vehicle. When a counterfeit brake part gives out, you lose the ability to stop it. There's no margin for error with these systems.
This is exactly why we invest so heavily in engineering and testing for these specific product categories. We've spent over three decades developing steering, brake, and suspension components built specifically for classic cars and trucks. Our Totally Tubular control arms, for example, are manufactured in our own facility using robotic welders that deliver consistent, precision welds on every single unit. Our 500 Series power steering boxes go through rigorous quality checks before they leave our hands. That kind of process costs more than cranking out unengineered copies with no oversight, but it's the difference between a part you can trust and a part that's a gamble.
We've been doing this since 1991, and we've built our reputation on parts that perform because we back up every product with in-house engineering, on-vehicle testing, and a lifetime guarantee. That track record matters, especially when you're choosing components that your safety literally depends on.
The Problem Goes Way Beyond Steering and Brakes
While steering and brake components are the most safety-critical, the counterfeit issue doesn't stop there. Knockoff wiring harnesses with substandard gauge wire and poor insulation are showing up, creating fire risks and electrical failures. Counterfeit suspension components with cheap bushings and materials are wearing out in a fraction of the time. Even fuel systems, which obviously carry their own set of dangers, are being counterfeited.
The reality is that if a product category is popular enough to generate demand, someone overseas is making a cheaper copy of it. And the channels for getting these products in front of consumers have never been more accessible. Online marketplaces, third-party sellers on major platforms, and even some lesser-known retail sites make it incredibly easy for counterfeit parts to reach buyers who think they're getting the real thing.
How to Protect Yourself
The good news is that protecting yourself doesn't require a degree in engineering or a forensics lab. It just requires a little awareness and some common sense purchasing habits.
Buy from the manufacturer or an authorized dealer. This is the single most effective thing you can do. When you order directly from us at Classicperform.com or through one of our authorized retailers, you know exactly what you're getting. The part was engineered, tested, and quality-checked by the people who designed it. That chain of custody matters.
Be skeptical of pricing that doesn't make sense. There's a difference between a company offering affordable parts because they've streamlined their manufacturing and a random seller offering a product at half the going rate with no explanation. If the price seems unrealistically low for a safety-critical component, that's a red flag, not a bargain.
Check the packaging and documentation. Legitimate manufacturers include installation instructions, tech specs, and proper branding. Counterfeit products often have vague or missing documentation, inconsistent logos, and packaging that looks close but not quite right.
Look for a real company behind the product. Does the manufacturer have a physical location? A tech support team you can call? A history in the industry? We operate out of an 80,000 square foot facility in Placentia, California, with a full showroom, in-house engineering department, and a tech support line staffed by people who actually know the products. That's a very different situation than a faceless online operation with no phone number and no accountability.
Verify through the community. Classic car and truck forums, social media groups, and enthusiast communities are great resources. If a product or seller seems questionable, chances are someone in the community has already raised the flag.
And most importantly, pick up the phone. You can call us directly and speak with a live rep who knows these products inside and out. No chatbot, no runaround, just a real person who can answer your questions and make sure you're getting exactly what your build needs.
Don't Gamble With Your Build
Look, we get it. Building and upgrading a classic car or truck isn't cheap, and finding ways to stay on budget is part of the game. There's nothing wrong with being smart about where your money goes. But there's a big difference between choosing an affordable part from a manufacturer who has spent decades perfecting their craft and rolling the dice on a knockoff that was never designed to keep you safe.
The parts that control your steering, stop your vehicle, and hold your suspension together aren't the place to take chances. Do your homework, buy direct from us at Classicperform.com or through one of our authorized dealers, and make sure the parts on your build are the real deal. If you're ever unsure about a part or want to talk through your build, give us a call. We've been doing this since 1991, and we're here to help you get it right.
Your safety, and the safety of everyone else on the road, is worth it.


