Benelli TNT125 TNT135 Tornado +TNT Naked De Cat Down-Pipe Exhaust header UK Made

The benelli tnt125 tnt135 tornado +tnt naked de cat down-pipe exhaust header uk made by Max Torque Cans represents the pinnacle of British exhaust engineering for Benelli owners who refuse to settle for compromise. Designed, manufactured, and quality-tested right here in the United Kingdom, this de cat downpipe transforms your TNT125, TNT135, Tornado, or +TNT Naked from a factory-restricted commuter into a free-breathing performance machine that rewards every twist of the throttle with sharper response, liberated power, and a soundtrack that genuinely stirs the soul.

Built from premium T304 stainless steel and precision-engineered to bolt directly into place without modification, this is the header that finally gives your Benelli the breathing space it has always deserved.

Why the Benelli TNT125 TNT135 Tornado +TNT Naked De Cat Down-Pipe Exhaust Header UK Made Outperforms the Factory System

The standard exhaust header fitted to your Benelli is a textbook example of design-by-committee engineering. Emissions regulations, manufacturing cost constraints, and global homologation targets all play their part in shaping the OEM downpipe—and performance comes a distant fourth. The result is a heavy, restrictive, thermally inefficient component that does little more than meet the legal minimum.

Our benelli tnt125 tnt135 tornado +tnt naked de cat down-pipe exhaust header uk made changes that equation completely. By removing the catalytic converter housing and optimising the internal bore diameter and bend geometry, we have created a header that allows exhaust gases to exit the combustion chamber with significantly reduced back pressure.

This means your engine spends less energy forcing burnt gases out and more energy driving the rear wheel forward—exactly where you want it.

Weight is another area where the factory simply cannot compete. The standard Benelli downpipe weighs a hefty 3.4 kg, whereas our UK-made performance header tips the scales at just 1.1 kg. That is an immediate saving of 2.3 kg from one of the most critical areas of the motorcycle—right at the front, where reducing mass has a direct impact on handling agility, steering feel, and overall rider confidence.

For a lightweight machine like the TNT125 or TNT135, every gram saved translates into a more responsive, more engaging ride. Add to that the corrosion-resistant properties of T304 stainless steel, and you have a component that will still look factory-fresh years down the line, even after countless miles through British weather.

Fitment and Compatibility: Installing Your Benelli TNT125 TNT135 Tornado +TNT Naked De Cat Down-Pipe Exhaust Header UK Made

One of the defining characteristics of every Max Torque Cans product is fitment accuracy. The benelli tnt125 tnt135 tornado +tnt naked de cat down-pipe exhaust header uk made has been manufactured using precise measurements taken directly from OEM equipment, ensuring that mounting points, sensor bosses, and connection flanges align perfectly with your motorcycle’s existing architecture.

You will not need to drill new holes, modify brackets, or fabricate adapters—this header is a true direct-fit replacement. Simply unbolt the standard downpipe, transfer your OEM O2 lambda sensor into the boss provided on our header, connect it to your standard rear silencer using a silicone-based exhaust sealant (no gasket required), and tighten everything down.

The entire installation can be completed in under an hour with basic hand tools and a reasonable level of mechanical confidence.

This header is fully compatible with the following Benelli models: TNT125, TNT135, Tornado, and +TNT Naked. Whether you are running the factory rear silencer or have already upgraded to an aftermarket performance can, our downpipe integrates seamlessly into your existing exhaust system. The connection point mirrors the OEM specification, so there are no clearance issues, no interference with bodywork or footpegs, and no awkward routing compromises.

It simply fits as it should—first time, every time. For riders exploring performance upgrades across different platforms, the same attention to detail can be found in our Aprilia RS660 De-Cat DownPipes, which share the same philosophy of British-made quality and plug-and-play installation.

What Makes the Benelli TNT125 TNT135 Tornado +TNT Naked De Cat Down-Pipe Exhaust Header UK Made a Performance Game-Changer

Performance gains from exhaust modifications are often overstated, but the improvements delivered by this benelli tnt125 tnt135 tornado +tnt naked de cat down-pipe exhaust header uk made are both measurable and immediately noticeable. By eliminating the restrictive catalytic converter and optimising gas flow through smoother internal bends and a more efficient bore profile, the engine can evacuate exhaust gases far more effectively.

This reduction in back pressure allows the combustion cycle to complete more efficiently, which translates into improved throttle response, a more linear power delivery throughout the rev range, and a tangible increase in top-end performance. On small-capacity machines like the TNT125 and TNT135, where every horsepower counts, these gains make a real difference in everyday riding—whether you are accelerating away from traffic lights, overtaking on A-roads, or enjoying spirited back-road riding.

Sound is another dimension where this header truly shines. The removal of the catalytic converter and the inclusion of a free removable DB killer baffle give you complete control over your exhaust note. With the baffle fitted, the tone is deep, purposeful, and road-legal-friendly. Remove it, and you unleash a raw, mechanical roar that genuinely reflects the performance potential of your Benelli.

It is not antisocially loud, but it is characterful, engaging, and infinitely more satisfying than the muted drone of the factory system. According to British Motorcyclists Federation, riders increasingly value modifications that enhance both performance and riding enjoyment without compromising reliability—and this header delivers on both fronts.

Installation Tips and Fuelling Considerations for Your New Header

Fitting your new downpipe is straightforward, but a few practical tips will ensure the best results. Always allow the engine to cool completely before starting work—exhaust components retain heat for far longer than you might expect. Use a quality penetrating fluid on the factory bolts at least a few hours before removal, particularly if your bike has seen wet weather or winter riding.

Once the old header is off, take a moment to inspect the cylinder head exhaust port and clean away any carbon build-up. This ensures a clean, gas-tight seal when you fit the new header. Refit your OEM lambda sensor into the boss on our downpipe before final installation, and apply a thin bead of high-temperature silicone sealant to the rear connection point where the header meets your standard silencer.

This replaces the factory gasket and provides an equally effective seal.

In terms of fuelling, the vast majority of riders can fit this header to a completely standard Benelli without any need for remapping or ECU adjustments. Our headers are specifically engineered to deliver improved performance within the tolerances of the stock fuel map. However, if you have already fitted an aftermarket air filter, upgraded carburettor jets, or made other intake modifications, a professional dyno tune or fuel review is highly recommended.

Pairing improved exhaust flow with optimised fuelling will always yield the best results and ensure your engine runs cleanly, safely, and powerfully across the entire rev range. For those interested in comprehensive performance packages across different machines, our Triumph 765 Moto 2 De-Cat pipe follows the same design ethos and delivers similarly impressive results.

Frequently Asked Questions About the Benelli TNT125 TNT135 Tornado +TNT Naked De Cat Down-Pipe Exhaust Header UK Made

Will I need to remap my bike after fitting this header?
For a completely standard Benelli with no other modifications, remapping is not usually necessary. The header is designed to work within the tolerances of the factory fuel map. If you have additional modifications such as an aftermarket air filter or performance exhaust rear can, a professional fuel review is advisable to extract maximum performance and ensure optimal running.

Does the header come with everything I need?
Yes. The header includes the O2 lambda sensor boss for your OEM sensor and a free removable DB killer baffle. You will need to supply your own high-temperature silicone exhaust sealant for the rear joint, but no specialist gaskets or adapters are required.

How much weight will I save?
The factory downpipe weighs 3.4 kg. Our UK-made performance header weighs just 1.1 kg, saving you an impressive 2.3 kg—a significant reduction on a lightweight machine like the TNT125 or TNT135.

Is the DB killer easy to remove and refit?
Absolutely. The removable baffle is designed for quick removal without tools in most cases, allowing you to tailor your exhaust note to suit your riding environment or personal preference.

At Max Torque Cans, we are passionate about creating performance upgrades that genuinely improve the riding experience. Every benelli tnt125 tnt135 tornado +tnt naked de cat down-pipe exhaust header uk made is a testament to British manufacturing excellence, precision engineering, and a deep understanding of what riders truly want. Upgrade your Benelli today and experience the difference that quality, performance, and attention to detail can make.