A stock motorcycle straight from the showroom floor reflects the manufacturer’s compromise between mass-market appeal and cost constraints - not your personal build vision. Whether you are chasing a classic bobber aesthetic, a touring comfort upgrade, or a performance edge, the right customization parts get you there without a full custom shop bill. These five parts and kits cover the highest-impact upgrades builders reach for first.
| Product | Best For | Key Feature | Est. Price |
|---|---|---|---|
| Vance & Hines Short Shots Exhaust | Performance and sound | Full stainless headers, stage 1 ready | $400-$700 |
| Drag Specialties Custom Handlebar Kit | Ergonomic fit | Multiple rise/pullback configurations | $80-$180 |
| Kuryakyn Accessories Bundle | Visual and comfort upgrade | Modular chrome/black styling parts | $60-$200 |
| Cycle Visions Custom Fender Kit | Bobber and chopper builds | Low-profile steel fender, multiple finishes | $150-$300 |
| Klock Werks Flare Windshield | Touring wind protection | Flared edge aerodynamic design | $180-$280 |
Vance & Hines Short Shots Exhaust
Vance & Hines Short Shots are one of the most recognized exhaust upgrades in the Harley-Davidson aftermarket for good reason - they produce a deep, throaty exhaust note while adding measurable horsepower through improved flow. The full stainless steel construction resists heat bluing over time, and the short upswept pipe position cleans up the visual profile of the bike dramatically. Pair with a Fuelpak fuel controller for a clean Stage 1 upgrade without a dyno visit.
Pros: Proven power gains, durable stainless build, aggressive sound profile Cons: Louder than some riders prefer, requires fuel management adjustment
Drag Specialties Custom Handlebar Kit
Drag Specialties offers handlebar options across a wide range of rise, pullback, and width specifications, making it easy to dial in a riding position that suits your body and your bike’s style. Whether you want a low, forward-leaning drag bar or a tall, laid-back cruiser pull, there is a configuration in their lineup. Steel construction is standard, and most kits include end caps and hardware for a clean install.
Pros: Wide range of fitment options, solid steel construction, competitive price Cons: Longer cable and brake line extensions may be needed for high-rise bars
Kuryakyn Accessories Bundle
Kuryakyn occupies the sweet spot between visual customization and practical function. Their accessory bundles typically combine items like handlebar grips, foot pegs, and engine trim pieces that update the aesthetic of the bike without requiring fabrication. Available in chrome, satin black, and contrast finishes, they work across cruiser and touring platforms. It is the easiest way to move a bike away from its stock look in an afternoon.
Pros: Bolt-on installation, cohesive styling across pieces, broad bike compatibility Cons: Largely cosmetic rather than performance-focused
Cycle Visions Custom Fender Kit
Cycle Visions specializes in the low-slung, stripped-back aesthetic of bobber and chopper builds. Their custom fender kits are fabricated from steel and come in raw, painted, or powder-coated finishes so builders can either match the factory color or start a custom paint job from scratch. The low-profile design removes the bulky stock fender look and dramatically changes the silhouette of the rear of the bike.
Pros: Steel construction, multiple finish options, authentic custom builder aesthetic Cons: May require minor bracket fabrication for non-standard mounting points
Klock Werks Flare Windshield
Klock Werks developed their Flare windshield design after extensive wind tunnel testing, and it shows. The outward flare at the top edge redirects wind around the rider’s helmet rather than over it, dramatically reducing buffeting at highway speeds. Available in multiple heights and tints to suit both touring and naked bike riders, it is a popular upgrade for any rider who spends significant time at 70+ mph. Installation uses stock mounting hardware on most compatible models.
Pros: Genuine aerodynamic improvement, clean modern styling, multiple size options Cons: Premium price compared to budget windshields, fitment is model-specific
What to Look For
Fitment compatibility is the first thing to verify. Exhaust headers, handlebars, and fenders are often specific to a make, model, and year. Double-check the manufacturer’s fitment guide before ordering.
Material and finish durability varies widely. Stainless steel exhaust resists corrosion and heat bluing. Chrome accessories require more upkeep in wet climates. Powder coat holds up better outdoors than spray paint.
Secondary modifications are often required. Wider handlebars may need extended cables or brake lines. An aftermarket exhaust will almost always need a fuel management recalibration to avoid running lean.
Budget for installation tools and hardware. Most bolt-on kits include the necessary fasteners, but a quality torque wrench and Loctite thread locker are essential for exhaust and handlebar work where vibration is a factor.
Final Thoughts
The Vance & Hines Short Shots exhaust delivers the biggest combined performance and aesthetic payoff for Harley riders. The Klock Werks Flare windshield is the single best touring comfort upgrade you can bolt on in an hour. For visual transformation on a budget, Kuryakyn accessories and a Cycle Visions fender kit together will change the character of the bike more than almost any single-part upgrade. Start with the change that bothers you most about your stock bike - and go from there.
Frequently asked questions
Do aftermarket exhaust systems require a fuel management tune?+
Yes, in most cases. Swapping to a slip-on or full exhaust system changes the back-pressure dynamics, which can run the engine lean if the fuel map is not adjusted. A piggyback fuel controller like the Vance & Hines Fuelpak handles this electronically without a full dyno tune, though a custom map always produces better results.
Are wider handlebars legal for road use?+
Handlebar width regulations vary by state and country, but most jurisdictions in the US allow handlebars up to 16 inches above the seat and as wide as the rider's shoulders. Custom handlebar kits typically fall within legal limits. Always verify your local vehicle code before riding, especially for extreme rise or pullback measurements.
Can I install a custom fender kit myself?+
Most bolt-on custom fender kits are designed for home garage installation with basic hand tools. The process involves removing the stock fender hardware, aligning the new kit, and securing it to existing mounting points. Painted or powder-coated fenders may need minor drilling for light or license plate brackets depending on the bike model.