Custom Motorcycles, Custom Harley-Davidson / V-Twin, Custom Sportbikes, and More!
A Deep Passion for Custom Bikes! This post covers everything to do with custom motorcycles. If you’re a custom bike
Roxstar Performance supplies aftermarket motorcycle exhaust systems and high‑performance motorcycle parts to riders across South Africa. Since 2007, we’ve helped sportbike, adventure, touring, and Harley‑Davidson owners boost power, cut weight, and upgrade style with trusted international brands like Vance & Hines, Scorpion, Dominator, Bassani, and Brock’s Performance. Whether you need a slip‑on exhaust, a full racing system, or specialist performance components, our Cape Town‑based team delivers expert advice, fast shipping, and proven products for every type of rider.
Roxstar Performance offers a complete range of motorcycle exhausts and performance parts for all riding disciplines.
Adventure & Off‑Road Parts – Dual‑sport, dirt bike, and enduro exhausts, protective upgrades, and suspension components.
Sportbike Components – Race‑spec exhausts, ECU tuning modules, and aerodynamic accessories for track‑level performance.
Touring Upgrades – Comfort‑focused parts, luggage solutions, and long‑distance riding enhancements.
Drag Racing Parts – High‑torque exhausts, quick shifters, and weight‑saving components for maximum straight‑line speed.
Track & Circuit Kits – Lightweight exhausts, racing electronics, and handling upgrades for competitive riders.
Roxstar Performance supplies premium motorcycle exhaust systems and high‑performance parts from the world’s most trusted brands. Each brand is chosen for proven reliability, innovative design, and compatibility with popular motorcycle models in South Africa. Our curated selection covers Harley‑Davidson, V‑Twin, sportbike, touring, drag racing, and adventure motorcycles—ensuring you find the right exhaust, tuning component, or accessory for your riding style.
✅ Featured Motorcycle Exhaust & Parts Brands:
Brand | Specialty |
---|---|
Bassani Exhausts | V‑Twin performance exhaust systems |
BST | Carbon‑fiber wheels for sport and race bikes |
Brock’s Performance | Drag‑racing exhausts and tuning parts |
Cobra V‑Twin | Custom cruiser and Harley exhausts |
Dominator Exhausts | Lightweight stainless exhaust systems |
Drag Specialties | American V‑Twin aftermarket accessories |
Feuling | High‑performance V‑Twin engine components |
K&N | High‑flow air filters and intake systems |
Memphis Shades | Motorcycle windshields and fairings |
Mustang Seats | Touring and cruiser comfort seating |
Progressive Suspension | Road and off‑road suspension kits |
Rinehart Racing | Harley‑Davidson signature‑sound exhausts |
S&S Cycle | Engine kits, exhausts, and intake upgrades |
Saddlemen | Seats, luggage, and touring accessories |
Schmitz | Sportbike exhausts and styling upgrades |
Scorpion Exhausts | Sportbike and European‑model exhausts |
SpeedPro Exhaust | Lightweight racing‑design exhaust systems |
Cobra USA | Full exhaust systems and tuning solutions |
TAB Performance | Harley slip‑ons and tuning components |
ThunderMax | Auto‑tuning fuel‑management systems |
Vance & Hines | Harley and metric bike exhaust leaders |
Why This Matters for Riders:
Choosing the right motorcycle exhaust brand can transform your bike’s performance, sound, and style. At Roxstar Performance, every brand we supply is tested and trusted for power gains, durability, and fitment precision.
Upgrading to a premium aftermarket motorcycle exhaust delivers measurable gains in performance, sound, and style. These systems reduce weight, improve airflow, and allow precise tuning for Harley‑Davidson, sportbike, touring, and adventure motorcycles. Below are the key advantages explained with real‑world examples.
Increase Horsepower & Torque
Aftermarket exhausts optimise gas flow, lower backpressure, and improve combustion efficiency.
Example: Riders often achieve 5–15% horsepower gains after replacing stock systems with high‑flow designs.
Reduce Motorcycle Weight
Stock exhausts use heavy steel; aftermarket systems use titanium, carbon fibre, or stainless steel.
Example: Full systems from Akrapovič or S&S Cycle can shed 3–7 kg, improving handling.
Improve Sound Quality & Volume
Performance exhausts create deeper, more aggressive tones for V‑Twin and sportbike engines.
Example: Rinehart Racing and Vance & Hines produce signature sounds loved by cruiser riders.
Enable ECU Tuning & Remapping
High‑flow exhausts pair with fuel controllers like ThunderMax for maximum performance.
Benefit: Unlocks full throttle response, optimised air‑fuel ratios, and smooth power delivery.
Enhance Motorcycle Styling
Custom finishes, shorty designs, and dual‑pipe setups improve visual appeal.
Example: Cobra and Bassani systems add striking style to custom builds.
Choose Between Slip‑On & Full System Upgrades
Feature | Slip‑On Exhausts | Full Exhaust Systems |
---|---|---|
Installation | Easy bolt‑on | Complex, may need tuning |
Performance Gain | Moderate | Maximum |
Weight Reduction | Minor | Significant |
Sound Upgrade | Noticeable | Deep, aggressive tone |
Cost | Lower | Higher investment |
Roxstar Performance is the official South African supplier of Dominator Exhausts, a high‑performance Polish brand trusted by riders across Europe. Each exhaust is engineered for power, durability, and precision fitment, meeting ISO 9001:2015 EU manufacturing standards.
Key Features:
304‑grade stainless steel (brushed or polished finish)
5‑year unlimited mileage warranty
Dyno‑tested for horsepower, sound, and reliability
Designed for street, track, and off‑road use
Performance Benefits:
Increased horsepower and improved throttle response
Deeper, sportier exhaust tone
Reduced weight for better handling
Fitment Available For:
Aprilia • BMW • Ducati • Honda • Kawasaki • KTM • Suzuki • Triumph • Yamaha
Order from Roxstar Performance:
Online ordering with secure checkout
Nationwide delivery across South Africa
Worldwide shipping available
Local Cape Town support for expert advice
Contact us anytime for an obligation free discussion regarding your needs. We know what works!
Roxstar Performance supplies world‑class motorcycle exhaust systems and performance parts trusted by riders across South Africa. Each brand is selected for power gains, durability, and styling impact, with options for Harley‑Davidson, sportbike, V‑Twin, and racing applications.
Featured Exhaust Brands:
Dominator Exhausts – Official South African distributor
Scorpion Performance – Race‑proven UK engineering
Vance & Hines – Harley and metric exhaust leader
SpeedPro Cobra – Lightweight European racing systems
Bassani Xhaust – Classic American torque and sound
Brock’s Performance – Drag‑racing exhausts and tuning
Rinehart Racing – Signature V‑Twin sound systems
Cobra V‑Twin – Cruiser‑specific exhaust solutions
TAB Performance – Aggressive Harley slip‑ons
S&S Cycle – Performance exhausts and engine parts
K&N, Mustang, Progressive Suspension, Feuling – Complementary tuning, comfort, and performance upgrades
Nationwide & International Delivery:
We ship nationwide across South Africa and to neighbouring countries, offering secure online payments, fast delivery, and expert support from our Cape Town team.
Roxstar Performance supplies aftermarket motorcycle exhausts and high‑performance parts for leading international motorcycle brands. Our fitment covers Harley‑Davidson, sportbikes, V‑Twins, touring motorcycles, and off‑road machines, ensuring riders get precision‑matched components for power, handling, and style.
Supported Brands:
Harley‑Davidson – Complete V‑Twin performance and styling upgrades
Suzuki – Sportbike and naked bike exhausts and tuning parts
Yamaha – R‑series, MT‑series, and adventure model compatibility
Kawasaki – Ninja, Z‑series, and dual‑purpose performance kits
Honda – CBR sportbike to CRF off‑road exhaust systems
Ducati – Panigale, Monster, and Multistrada premium upgrades
Indian Motorcycles – Scout and Chief exhaust and tuning solutions
KTM – Adventure, enduro, and Super Duke performance parts
BMW Motorrad – GS series, S1000RR, and touring enhancements
Cagiva – Legacy sport and adventure model support
Derbi – Lightweight and small‑displacement tuning
Triumph Motorcycles – Bonneville, Speed Triple, and Tiger upgrades
Husqvarna – Enduro and supermoto exhaust and performance options
An aftermarket exhaust increases horsepower and torque by improving exhaust flow and reducing backpressure. It also lowers weight, sharpens throttle response, and produces a deeper, more aggressive exhaust note.
Slip‑On: Replaces the muffler only. Easy to install, moderate sound and performance boost.
Full System: Includes headers, mid‑pipe, and muffler. Maximises performance, significantly reduces weight, requires ECU tuning.
Slip‑On: Tuning usually not needed unless paired with an upgraded air intake.
Full System: ECU remapping is strongly recommended to optimise air‑fuel ratios and protect engine performance.
Yes. They are legal if they meet National Road Traffic Act noise regulations. Most premium brands include removable dB killers to comply with legal decibel limits.
We supply systems for Harley‑Davidson, sportbikes, touring bikes, adventure motorcycles, and off‑road machines from Yamaha, Kawasaki, Honda, BMW, KTM, Ducati, Triumph, and more.
High‑end exhausts use titanium, carbon fibre, or 304‑grade stainless steel for reduced weight, improved heat resistance, and durability under extreme riding conditions.
Full systems can reduce motorcycle weight by 3–7 kg depending on material and design, improving handling and acceleration. Slip‑ons offer smaller weight reductions.
Yes, when paired with proper ECU tuning. Improved exhaust flow allows for more efficient combustion, which can increase fuel economy under certain riding conditions.
Commuting/Touring: Focus on comfort, low noise, and fuel efficiency.
Track/Racing: Prioritise maximum power, weight reduction, and ECU tuning compatibility.
Cruising/Custom Builds: Choose for style, tone, and visual appeal.
Yes. We deliver across South Africa and neighbouring countries with secure online ordering and expert support from our Cape Town‑based team.
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Address: 16 Selous Road, Claremont Cape Town, South Africa, 7708
Tell: 082 572 3914
Whatsapp: 082 572 3914
Email: leon@monzagroup.com