Moto Guzzi V85TT Exhaust Upgrade: Essential Sound -

Moto Guzzi V85TT Exhaust Upgrade: Essential Sound
Give your Moto Guzzi V85TT the roar it deserves with a simple exhaust upgrade. It’s an easier DIY task than you think, transforming the riding experience with a richer, more engaging sound. This guide will walk you through the process step-by-step.

Hey there, fellow riders! Barry here. Ever felt like your Moto Guzzi V85TT’s engine is holding back a symphony? That iconic transverse V-twin deserves to be heard, and frankly, the stock exhaust can sometimes be a bit… shy. You’re not alone in wanting to uncork that beautiful Italian music. Many V85TT owners look for an exhaust upgrade to enhance both the sound and, often, the overall performance. It might sound like a big job, but I promise you, with a little patience and the right guidance, adding a new exhaust to your V85TT is a totally achievable DIY project. We’re going to make your bike sound as good as it looks and feels to ride.

In this guide, we’ll break down exactly what you need to know. We’ll cover why an exhaust upgrade is a great idea, what options are out there, what tools you’ll likely need, and most importantly, how to tackle the installation yourself. Get ready to hear your V85TT sing!

Why Upgrade Your Moto Guzzi V85TT Exhaust?

Let’s talk about why so many riders want to swap out their stock mufflers. It boils down to a few key reasons, and they all add up to a more satisfying ownership experience.

The Sound You Crave

This is usually the biggest driver. The Moto Guzzi V85TT has a distinctive engine note thanks to its longitudinal crank V-twin. The stock exhaust is designed to meet strict noise regulations, which often means it’s muffled to the point of being almost silent. An aftermarket exhaust system replaces the restrictive baffles and chambering with designs that allow the engine’s natural exhaust pulse to create a deeper, throatier, and more resonant sound. It’s not just about being loud; it’s about character. Hearing that V-twin rumble beneath you as you ride, especially when accelerating or downshifting, adds a whole new layer of sensory engagement to your journey. It connects you more viscerally to the machine.

Performance Gains: Breathing Easier

While the V85TT is a fantastic machine for adventure touring and everyday riding, a restrictive stock exhaust can sometimes hinder its breathing. Aftermarket exhausts are generally designed to be less restrictive. This means the engine can expel exhaust gases more efficiently. Think of it like trying to run while wearing a mask – it’s harder work. When the engine can breathe easier, it can often produce a bit more power and torque. While not always a massive leap on an adventure bike like the V85TT, you might notice a slight improvement in throttle response and a bit more willingness from the engine, especially in the mid-range. Often, the gains are more noticeable when paired with other modifications like an air filter upgrade and a fuel re-map, but even on its own, a less restrictive pipe can help.

Weight Reduction

Stock exhaust systems, especially those containing catalytic converters and heavy internal baffles, can be surprisingly heavy. Aftermarket exhausts, particularly those made from materials like titanium or lighter-grade stainless steel, can significantly reduce the overall weight of your V85TT. Every pound saved makes a difference, contributing to better acceleration, braking, and overall handling. For an adventure bike where you might be carrying extra gear, shedding even a few pounds from the chassis can be beneficial.

Aesthetics: Style Points

Let’s be honest, bike parts contribute to the overall look of your motorcycle. Stock exhausts are often large, bulky, and designed for universal appeal rather than specific styling. Aftermarket exhausts come in a variety of shapes, sizes, and finishes (like polished stainless steel, brushed aluminum, or matte black). Replacing the factory unit with a sleeker, more modern, or even retro-styled muffler can dramatically improve the visual appeal of your V85TT, making it look sportier or more customized.

Choosing Your Moto Guzzi V85TT Exhaust

When you start looking for an exhaust upgrade, especially for models like the V85TT, you’ll find there are several options. It’s not just about picking the loudest one; it’s about finding the right fit for your needs and riding style.

Types of Exhaust Systems

There are generally three main types of exhaust systems you’ll encounter for the V85TT:

Slip-on Mufflers: This is the most common and usually the easiest type of upgrade for beginners. A slip-on replaces only the rear muffler section of your existing exhaust system. It bolts directly onto the header pipe. This type of upgrade offers a good balance of improved sound, potential weight savings, and easy installation. You typically retain your stock catalytic converter (if applicable) and mid-pipe section.
Full Exhaust Systems: A full system replaces everything from the engine’s exhaust ports all the way back to the tailpipe. This includes the header pipes, the mid-pipe, catalytic converter (often removed or replaced with a “de-cat” pipe), and the muffler. Full systems offer the greatest potential for performance gains because they optimize the entire exhaust flow. However, they are more complex to install and often more expensive.
Exhaust Baffles and Inserts: Some manufacturers offer inserts or removable baffles that can be fitted into the stock or aftermarket muffler to slightly alter the sound. These are usually the cheapest option but offer minimal gains in sound or performance.

Popular Brands for the V85TT

Several reputable brands offer exhaust solutions for the Moto Guzzi V85TT, known for their quality and sound. Some of the popular choices include:

SC-Project: Known for their high-performance, often race-inspired exhausts with striking designs and a signature aggressive sound.
Arrow Exhausts: A well-respected Italian brand that offers a range of performance and style-oriented exhausts, often used in racing.
GPR: Another Italian company offering premium exhausts known for their quality materials and distinct sound profiles.
Remus/Schooner: These brands offer a variety of exhaust options, often focusing on a balance of performance, sound, and durability.

It’s always a good idea to check reviews, watch videos of exhaust sounds on actual V85TT models, and see what other riders recommend. Many manufacturers will have sound clips on their product pages or YouTube channels.

What to Consider Before Buying

Noise Levels: What’s loud enough for some might be too much for others, or even illegal in your area. Check local noise ordinances.
Materials: Stainless steel is durable and common. Titanium is lighter but more expensive. Carbon fiber mufflers offer a premium look and are lightweight.
Emissions and Legality: Does the exhaust come with a catalytic converter, or is it designed to be used with one? Some exhausts are “for off-road use only” because they remove emissions equipment. Make sure your choice complies with local regulations. For example, in the US, the EPA regulates emissions, and in Europe, there are various Euro standards. You can find more information on vehicle emissions standards from the U.S. Environmental Protection Agency and the European Commission’s automotive regulations.
Fitment: Ensure the exhaust is specifically designed for the Moto Guzzi V85TT.
DB Killers/Baffles: Many aftermarket exhausts come with a removable baffle (often called a “DB killer”) that can be installed or removed to adjust the sound level. This is great for tuning the sound to your preference or for when you need to be quieter.

Tools and Materials You’ll Need

Don’t let a long list of tools intimidate you. For a slip-on exhaust upgrade, it’s usually pretty straightforward. Having the right tools makes the job much smoother and safer.

Essential Tools

Here’s what you’ll generally need for a slip-on exhaust installation:

Socket Set: With metric sockets, particularly 10mm, 12mm, and 13mm.
Wrench Set: Metric wrenches, same sizes as sockets.
Torque Wrench: Crucial for tightening fasteners to the manufacturer’s specifications to prevent damage or loosening. Check your V85TT’s service manual for exact torque values.
Screwdriver Set: Both flathead and Phillips head might be needed for clamps or brackets.
Pliers: Standard and possibly needle-nose for dealing with springs or clamps.
Rubber Mallet: Useful for gently tapping parts into place without causing damage.
Penetrating Oil (e.g., WD-40): Helpful for loosening stubborn bolts, especially on used bikes or those exposed to weather.
Cleaning Supplies: Rags, degreaser, and perhaps some metal polish to clean up the area before and after installation.
Safety Glasses: Always protect your eyes!
Gloves: To protect your hands and keep parts clean.

Optional but Helpful Items

Exhaust Gasket: Sometimes new slip-ons come with them, sometimes they don’t. It’s good to have one on hand in case the old one is damaged or you’re doing a full system.
Anti-Seize Compound: Apply a small amount to exhaust bolts before re-installing to make them easier to remove in the future.
Exhaust Sealant/Paste: A high-temperature sealant can help ensure a leak-free connection between the exhaust components.
Bike Stand or Lift: To raise the rear of the bike for easier access. Ensure it’s stable and suitable for your bike’s weight.

Always refer to your new exhaust manufacturer’s instructions and your motorcycle’s service manual. Different aftermarket exhausts may have slightly different fastener sizes or installation nuances. Always check the specifications for the Moto Guzzi V85TT exhaust category on reputable motorcycle parts websites to see what’s recommended for your model.

The DIY Installation: Step-by-Step Guide

Alright, let’s get your hands dirty and give your V85TT that new voice! This guide focuses on installing a slip-on muffler, as it’s the most common and beginner-friendly upgrade. If you’re attempting a full system, the process will be more involved, and you should definitely consult the specific instructions for those components and your V85TT service manual.

Step 1: Preparation and Safety First

Before you start, ensure your bike is parked on a stable, level surface. It’s best if the engine is cool to avoid burns. If you’re using a lift or stand, make sure it’s securely in place.

Put on your safety glasses and gloves. Clear the area around the exhaust system of any debris.

Step 2: Locate and Inspect the Stock Muffler

On your V85TT, the stock muffler is the large, usually chrome or black canister located at the rear of the bike, connected to the header pipes via a mid-pipe. Take a look at how it’s attached. You’ll typically find:

Bolts connecting the mufflers to the header pipes (or a substantial clamp securing the mid-pipe to the muffler inlet).
Mounting brackets that attach the muffler assembly to the bike’s frame or subframe.

Note where all the fasteners are. This is also a good time to spray any stubborn bolts with penetrating oil and let them soak for a bit.

Step 3: Remove the Stock Muffler

Loosen Clamps/Bolts: Start by loosening the clamp or bolts that secure the muffler to the header pipe. If it’s a clamp, you might need to remove a bolt entirely or just loosen it enough for the clamp to open. If it’s bolted directly to the header, remove those bolts. Be prepared for the muffler to be a little stuck due to carbon buildup or corrosion.

Remove Mounting Brackets: Next, locate the bolts holding the muffler’s mounting bracket to the bike’s frame. Undo these to free the muffler assembly.

Wiggle and Remove: Gently wiggle the stock muffler to detach it from the header or mid-pipe. If it’s stubborn, a gentle tap with a rubber mallet might help. Sometimes, you can use an exhaust spring puller tool if there are springs holding it on, but most modern bikes use clamps or bolts. Be careful not to drop the muffler, as it can be heavier than you expect!

Inspect the Mid-Pipe: Once the muffler is off, check the end of the mid-pipe where the muffler attached. Ensure the old gasket (if there was one) is removed cleanly, and the mating surface is free of damage or debris.

Step 4: Prepare the New Aftermarket Muffler

Unpack your new exhaust system. Read its specific installation instructions carefully, as they may have unique steps.

Install the New Gasket: If your new muffler requires a new gasket where it slips onto the mid-pipe, install it now. Ensure it’s seated correctly.

Attach Brackets/Hardware: Some aftermarket mufflers come with their own mounting brackets or adapters. Attach these to the new muffler now, but don’t tighten them fully yet – leave a little play for alignment.

Install the DB Killer (if applicable): If your new muffler has a removable DB killer, decide if you want to install it for quieter operation or leave it out for maximum sound. It’s usually a simple bolt-in or slide-in component.

Step 5: Install the New Muffler

Position the New Muffler: Carefully guide the new muffler onto the mid-pipe or header pipe. This is where the slightly loose brackets come in handy, allowing you to maneuver it into the correct position.

Align and Secure: Once the new muffler is roughly in place, align it with the mounting points on the bike’s frame. Reinstall the mounting bracket bolts. Now, align the muffler with the mid-pipe. If it uses a clamp, slide the clamp into position. If it bolts directly, line up the bolt holes. Make sure the pipe fits completely onto the mating surface.

Tighten Fasteners Gradually: Start tightening all the bolts and clamps.
First, snug up the bolts on the mounting bracket to the frame.
Then, work on the clamp or bolts connecting the muffler to the mid-pipe or header. Ensure the muffler is straight and has adequate clearance from the swingarm, rear tire, and any bodywork.
* Once everything is aligned and snugged, use your torque wrench to tighten all fasteners to the manufacturer’s specified torque values. This is critical! Over-tightening can strip threads or crack exhaust components, while under-tightening can lead to leaks or the exhaust coming loose.

Step 6: Final Checks and Cleanup

Double-Check Everything: Go over every bolt and clamp again. Ensure everything is secure and properly torqued. Spin the rear wheel (if on a stand) to check for any interference with the exhaust. Look for any signs of leaks at the connection point.

Clean Up: Wipe down the new exhaust and the surrounding area with a clean rag. Any oils or residues from installation can burn off and cause smoke or discoloration during the first use, so a good wipe-down helps prevent this.

Remove DB Killer (if you want louder): If you initially installed the DB killer and want to test the louder sound, now is the time to remove it (follow manufacturer instructions).

Step 7: The Moment of Truth: Start the Bike

Start your Moto Guzzi V85TT. Listen carefully for any unusual noises, leaks, or rattles. Let it idle for a few minutes. The sound should be dramatically different – deeper, richer, and more pronounced.

Take a Short Test Ride: Go for a short, gentle ride around the block. Pay attention to how the bike feels and sounds. Check again for any leaks or loose parts once the exhaust has heated up. Do another torque check after your first ride as components can settle.

Congratulations! You’ve successfully upgraded your Moto Guzzi V85TT’s exhaust. Enjoy the new sound and feel of your ride!

Understanding Exhaust Leaks and Tuning

After installing any new exhaust, it’s important to understand what issues might arise and how to address them. The most common concern is an exhaust leak, and sometimes, performance benefits are best realized with ECU tuning.

What is an Exhaust Leak?

An exhaust leak occurs when there is a gap in the exhaust system, allowing exhaust gases to escape before they reach