Why Is Brock’s Mapping So Precise?

We often get asked how our maps can be so accurate right out of the box. Here’s the reality:

Modern Manufacturing = Consistency

It’s true that every motorcycle off the assembly line has slight differences due to machining tolerances. But today's manufacturing technology is far more precise than it was decades ago.

At Brock’s, we’ve seen this firsthand. Through our SuperSport race program (where nearly all engine components must remain stock), we've found that the assembled deck height (piston-to-head clearance) on every GSX-R1000 engine since 2001 varies by less than .0015 inches — an incredible level of consistency.

Modern Japanese motorcycle factories build engines and control systems to an astonishingly tight standard. In fact, parts like cam caps can often be swapped between engines without issue, something that was impossible in the ‘90s.

Your Bike is Built to Adapt

Every motorcycle is engineered to run all over the world — from sea level in South Florida to high elevation in Denver — without needing to be re-mapped. Thanks to sensors that adjust for temperature, humidity, and altitude, your bike self-corrects and continues running well without manual intervention.

Is it 100% optimized? No. But for the average rider, it’s more than good enough — and constantly improving with new technology.

Enter the Tuner: Finding Small Gains

With access to $60,000 dyno rooms and precision measuring equipment, professional tuners can tweak the factory map to make a bike a little smoother or slightly quicker.

But here’s some perspective:

• Picking up a tenth of a second at the drag strip is a real improvement.
• However, it's only about half a bike length at 150 mph.
• Most riders would never feel that gain without a timing slip.

Real drivability improvements, though, can definitely be noticed with proper tuning.

What Happens When You Add a Brock’s Performance Exhaust?

When you install a high-performance exhaust, the stock fuel map no longer matches the engine’s needs. Our maps correct this mismatch by conditioning the ECU signals before they reach the injectors - using devices such as a Power Commander, Bazzaz, or similar tuning modules. Depending on your bike's make, model, and year, an ECU flash may also be required to fully unlock performance and compatibility. For specific recommendations, contact our knowledgeable Sales Team.

Important:

• We don't change your engine.
• We don't modify your factory sensors.
• We simply match the new exhaust system’s airflow to the correct fuel delivery.

Your bike doesn’t even know a tuning device is installed — it just runs better.

Why Our Maps Work So Well

At Brock’s, we approach mapping scientifically:

• We use engineering principles and data from years of racing success.
• We develop base maps on the dyno and refine them with real-world track data using advanced sensors (like Bosch 5-wire Lambda sensors).
• We adjust for real-world riding, not just static dyno pulls.

Our TRACK maps, for example, are optimized for real-world performance — which might even show lower dyno numbers compared to a “perfected” dyno tune. But at the track, they win races.

Different Bikes, Different Needs

Optimal air-fuel ratios vary by model and year: Hayabusa, GSX-R1000s, ZX-14s, ZX-10Rs, S1000RRs, and H2s require slightly different tuning for peak performance. Whether it’s a quarter-mile drag or a standing-mile land speed event, racing conditions also affect the perfect map.

Trying to find a local shop with the experience to know these nuances? Good luck — it took us years of top-level racing to build this knowledge base.

The Bottom Line

Save your hard-earned money and trust the free map that comes with your Brock’s system.
It’s already designed for your bike, your exhaust, and your goals — and chances are, it’ll outperform a custom tune done by someone without our level of experience.