The Aprilia Tuono 457 has arrived, bringing the aggressive Italian DNA of the "Thunder" series to the middleweight category. With its 457cc parallel-twin engine and a 270-degree crank, it already sounds and feels like a mini-superbike.
However, for many riders, "stock" is just a starting point. Whether you want to shed weight, improve the sound, or sharpen the throttle response, modifying your bike is part of the ownership experience. Because the Tuono 457 is a relatively new platform (sharing its heart with the RS 457), the aftermarket scene is just heating up.
Here is a comprehensive guide to performance modifications and exhaust options to take your Tuono 457 to the next level.
1. The Exhaust System: Sound and Weight
The most popular modification for any motorcycle is the exhaust. The stock system on the Tuono 457 is designed to meet strict Euro 5+ emission standards. While it does a good job, it is heavy and restricts the engine's true voice.
Option A: Slip-On Exhausts
If you are on a budget or want to keep the installation simple, a slip-on is the way to go. This replaces just the muffler (the end can) of the bike.
- Pros: improved looks, slightly better sound, and minor weight reduction.
- Cons: Minimal performance gains since the catalytic converter (cat) remains in place.
Option B: Full System Exhausts
A full system replaces the headers and the catalytic converter.
- Pros: Significant weight reduction (often saving 3kg to 5kg), louder volume, and a noticeable boost in horsepower when paired with a tune.
- The Sound: Because the Tuono 457 uses a 270-degree firing order, a full exhaust makes it sound like a V-Twin engine—deep, growling, and aggressive.
Brands to Watch:
- SC-Project: Known for loud, racing-style exhausts often seen on MotoGP bikes.
- Arrow: A classic choice for Italian bikes, offering a balance of performance and refined sound.
- Akrapovič: The premium choice. Usually the most expensive, but offers the best build quality and dyno-proven gains.
- Mivv: A great mid-range option that offers aggressive styling at a lower price point.
2. ECU Tuning and Mapping
If you install a full exhaust system, you change how air flows out of the engine. To get the most benefit, you need to change how the engine manages fuel.
- Why tune it? From the factory, bikes run "lean" (less fuel) to pass emissions. Adding a high-flow exhaust makes them run even leaner, which can make the engine run hot or jerky.
- The UpMap T800+: This is a very popular device for Aprilia owners. It connects to your bike via Bluetooth. You can download maps specifically designed for your exhaust (like an Arrow or SC-Project map) directly to the bike's ECU using your smartphone. It fixes the fueling and often disables the annoying check engine light caused by removing the catalytic converter.
3. High-Flow Air Filters
To make more power, an engine needs to breathe. The stock paper air filter is designed to trap dust but can restrict airflow.
- The Upgrade: Switch to a cotton or synthetic mesh filter from brands like DNA High Performance, Sprint Filter, or K&N.
- The Benefit: These filters let more air into the combustion chamber. When combined with an exhaust and a tune, this completes the "Stage 1" performance upgrade, making the throttle feel snappier. Plus, these filters are washable and reusable, so you never have to buy another one.
4. Gearing (Sprockets)
This is the cheapest modification with the most noticeable result in "feeling" fast.
- The Mod: Many riders choose to drop one tooth on the front sprocket (e.g., going from 15T to 14T) or add two teeth to the rear sprocket.
- The Result: This shortens the gear ratios. You will lose a little bit of top speed (which you rarely use legally anyway), but your acceleration from stoplights will be much quicker. The bike will feel punchier in the city and on twisty roads.
5. Tires and Braking
Performance isn't just about going fast; it is about control.
- Tires: The stock TVS Eurogrip tires are decent for commuting. However, upgrading to Pirelli Diablo Rosso IV or Michelin Road 6 tires will transform the bike's handling. You will have much more confidence leaning into corners.
- Brake Pads: If you want stronger stopping power, swap the stock brake pads for Sintered pads (like EBC Double-H). They bite harder and don't fade as quickly during aggressive riding.
A Note on Warranty and Legality
Before you start modding, keep two things in mind:
- Warranty: Changing the exhaust or tuning the ECU can sometimes void parts of your manufacturer's warranty. Check with your dealer first.
- Legality: Full exhaust systems that remove the catalytic converter are generally for "race use only" and may not be street-legal in your country due to noise and emissions laws.
Conclusion
The Aprilia Tuono 457 is a fantastic machine straight out of the crate. However, adding a deeper exhaust note, a high-flow filter, and a proper fuel map can turn it into a truly personalized sport naked bike. Start with the mods that make you smile the most, ride safe, and enjoy the twisties!
