Pomona to Santa Fe Springs
Forty-Six Years of Race-Built Pipes
Terry Vance and Byron Hines met at a Pomona drag strip in the early 1970s, in the middle of Southern California's deepest motorcycle drag-racing era. Vance was the rider. Hines was the technician — the one who could read a spark plug, build a clutch that survived the launch, and squeeze tenths out of a motor everyone else thought was already done. They started winning together, fast. By the time the NHRA made Pro Stock Motorcycle a championship class in 1987, Vance had already taken Top Fuel Bike titles on equipment Hines built. He went on to win the inaugural NHRA Pro Stock Motorcycle national in Gainesville that March on a Suzuki GS1150E.
The company itself dates to 1979. They'd been building pipes for their own race effort and for friends who wanted to copy what was working; eventually the side business became the business. Santa Fe Springs is still where the head office sits. Production runs about 800 sets of pipes a day — bent, welded, finished, packed, shipped — and the drag-race programme operates out of the same building, with the same engineers crossing back and forth between the test cell and the factory floor. The pipe you buy off our shelf was designed by people who run Pro Stock motors on Wednesday and answer the catalogue spec sheet on Thursday.
Vance retired from active riding in 1988 — by that point with fourteen NHRA national titles in Pro Stock and Top Fuel and twenty-four overall national wins. He stayed with the company. Hines stayed with the company. Their sons and protégés race the current programme: Andrew Hines (five NHRA Pro Stock Motorcycle championships as a rider) and Eddie Krawiec (four championships) crew-chief the 2025 Mission Foods / Suzuki Hayabusa team running Gaige Herrera and Richard Gadson. Herrera won the title in 2023 and 2024 — back-to-back, ten event wins in 2024 alone. The same V&H name is on the championship trophy and on the slip-on you can fit in an afternoon.
Why The Pipes Sound Right
Three things, and they're not glamorous. The bend. V&H build their headers and head-pipes on dedicated mandrels — no crushed corners, no restrictive welded transitions. Each model is bend-tooled separately rather than hacked from a universal blank. The baffle. Every muffler is sound- and dyno-tuned in pairs against the head-pipe it's designed to run with; that's why you'll see Hi-Output and Torquer 450 listed for the *same* bike — they're different baffles tuned for different riders. The Made-in-USA stock. The Santa Fe Springs facility holds inventory in the building, which is why parts ship in days rather than the weeks-long lead times some smaller specialists run. None of that is exciting marketing. It's why the pipes sound right when they arrive.
The Whole Pipe Range
Every System in Plain English
V&H sells under a lot of model names — Big Shots, Hi-Output, Torquer, Pro Pipe, Power Duals — and the listings can read like a code if you don't already know what you're looking for. Here's what each one actually is, what bike it's built for, and the trade-off you're picking by buying it.
Torquer 450 / Razorback 450 — Wide-Bore Slip-On for Touring
4.5" diameter slip-on, 50-state legal in selected variants. Tuned for low-end pull and a deep bass note rather than a hard top-end edge. The barrel is wider than a standard slip-on, which is what gives it the throaty character — more chamber volume, lower fundamental frequency. It's the slip-on for riders doing two-up touring, slow-speed cruising, or anyone who wants a meaningful sound change without the harder bite of the Hi-Output. Razorback is a closely-related variant with a different end-cap profile.
Hi-Output — The Aggressive Slip-On
4" or 4.5" slip-on, broader-bore baffle, harder note. Same 50-state legal options for selected M8 Touring fitments, but the character is fundamentally different from Torquer — more upper-mid edge, more drama at part throttle. This is the slip-on you fit if you want the bike to announce itself, and you'll get there at the cost of being more obvious to neighbours and traffic stops. The 4.5" Dark Chrome variant is the current flagship for 2017–2026 Touring and the Trike chassis.
Big Shots / Short Shots / Twin Slash — Staggered Duals for Cruisers
The systems that built the V&H name in the '80s and '90s, still current for cruiser platforms. Big Shots Staggered are the full system replacement — head-pipes plus mufflers in one box — built for Softails, Sportsters, Dynas, and the Heritage range. Short Shots are the compact lower-pipe variant for tighter chassis (FXR, Sportster). Twin Slash is the slip-on family with the angled muffler cuts, available in 3" and 4" diameters. None of these fit a Road King or a Touring chassis properly — that's where Torquer, Hi-Output, and Pro Pipe live instead.
Pro Pipe — The 2-into-1 for Touring
True merge-collector 2-into-1 system, full replacement (head-pipes plus muffler). The Pro Pipe is the system that wins on the dyno when you actually want power rather than sound — typical 12-18 hp gain on a stock 114"/117" M8 Touring engine paired with a VO2 intake and a Fuelpak tune. The collector merges the two cylinder pulses into a single low-restriction outlet, which is where the gain comes from. Tune is non-negotiable on this one — running Pro Pipe on the OEM map is what kills exhaust valves over time.
Power Duals & Dresser Duals — The Head-Pipe Half
True dual head-pipes for 2017–2026 Touring. This is the part of the system the slip-on doesn't touch — the section between the engine and the muffler. Stock Touring head-pipes route both cylinders through a crossover for emissions reasons; Power Duals replace that with a true dual layout that lets each cylinder breathe on its own. Pair with any V&H slip-on — Hi-Output, Torquer 450, Eliminator — and you've built what most riders mean when they say "a V&H system" on a Bagger. Dresser Duals are the equivalent for older Touring chassis.
The Other Half of the System
Air & Fuel
The exhaust changes how the engine breathes out. The intake changes how it breathes in. The Fuelpak makes the ECU keep up with both. Run any one alone and you'll see a real but modest gain. Run all three together and the bike starts to feel like a different motor — that's where the V&H "system" idea actually lives.
VO2 Air Intakes
VO2 Cage Fighter is the exposed-mesh, naked metal-cage option — aggressive look, very high flow, the choice when you want the air cleaner to announce itself. VO2 Falcon is the current flagship — sleek enclosed shroud, stainless cage, the more polished aesthetic. VO2 Skullcap is the lowest-profile member of the family, in matt black anodised; what you fit on a tucked-in build where the air cleaner isn't supposed to be the visual focus. All three use a high-flow K&N-style filter, all three include bike-specific velocity-stack adapters, all three are designed against the Fuelpak so the air-fuel ratio stays sensible after fitment.
Bolt-on alone the gain is 3-5 hp. Combined with a Hi-Output slip-on or a Pro Pipe full system, plus a Fuelpak retune, the system gain is 8-15 hp depending on the base bike — exactly the kind of difference where 2008 Road Kings start to feel like 2018s.
Fuelpak FP4 & X
Fuelpak FP4 / FP4.2 / FX-1 / X is V&H's ECU tuning module — a small black box that connects to the bike's diagnostic port and pairs with an iPhone or Android app over Bluetooth. It does three things: writes pre-calibrated tunes for common V&H exhaust + intake combinations, auto-tunes from your bike's existing O2 sensors over the next twenty miles of riding, and lets you adjust speed limiters, RPM limits, and idle character through the app.
You don't need a dyno session. You don't need to send the ECU off. You don't need a tuning shop appointment. £400-ish, fitted in an hour, recovers any horsepower the exhaust and intake are capable of delivering. The X variant covers 2014–2020 CAN-bus Harleys; FP4 covers 2007–2013; FP4.2 is the current Milwaukee-Eight optimised version. Listings call out which model fits which bike.
From the Pomona Strip to Your Street
Race-Proven, Catalogue-Available
V&H came up through NHRA drag racing and never left. Terry Vance won the inaugural Pro Stock Motorcycle national in Gainesville in March 1987 on a Suzuki GS1150E; by his 1988 retirement he had fourteen NHRA national titles to his name across Pro Stock and Top Fuel. The team programme has won every decade since. Andrew Hines (five Pro Stock Motorcycle championships as a rider) and Eddie Krawiec (four) crew-chief the current effort.
The 2025 NHRA Mission Foods Pro Stock Motorcycle programme has Vance & Hines / Mission / Suzuki running Gaige Herrera — back-to-back world champion in 2023 and 2024, ten event wins in 2024 alone — plus Richard Gadson, who finished third in the championship in his rookie season last year. They run RevZilla / Motul / Suzuki Hayabusas built and maintained at the same Santa Fe Springs facility that ships the catalogue exhausts. The pipes that win on Sunday are designed by the same engineering team that signs off on the slip-on you fit on Saturday morning.
Made in California
Bent, welded, and ceramic-coated in Santa Fe Springs. Roughly 800 sets a day, all from a single facility that's been there since 1979.
NHRA Race-Proven
Back-to-back Pro Stock Motorcycle champions in 2023 and 2024. Same engineers design the catalogue pipes and the championship engines.
Dyno-Validated
Every system tested in-house against the head-pipe it pairs with. Sound, flow, and back-pressure tuned together, not in isolation.
50-State Legal Options
Torquer 450 and Hi-Output ship in CARB-EO-numbered variants for selected M8 fitments. UK/EU riders get the same noise-tested baffle.
Common Questions
Vance & Hines FAQ
Are Vance & Hines exhausts made in the USA?
Will a V&H slip-on void my Harley factory warranty?
What's the difference between Hi-Output and Torquer 450?
Are Big Shots still made for current Touring bikes?
Do I need a Fuelpak with a V&H exhaust?
Is the Torquer 450 50-state legal?
What does VO2 stand for, and why does it matter?
Will V&H Power Duals fit a 2025 Road Glide?
How loud is the Hi-Output 4.5" compared to stock?
Can I run a Pro Pipe 2-into-1 on a stock M8?
What's the warranty on V&H exhausts?
Do you ship Vance & Hines parts to the UK and EU?
Key Terms Explained
V&H Glossary
- Slip-On
- A muffler-only replacement that bolts to the existing OEM head-pipes. Quickest and cheapest way to change sound and shed weight; less impact on power than a full system because the head-pipe restriction is still in place.
- 2-into-1 (Pro Pipe)
- A full system where both cylinder head-pipes merge into a single collector and outlet. The merge collector is what unlocks meaningful horsepower — typical 12-18 hp gain on M8 Touring with intake and tune. Tune is mandatory.
- 2-into-2 / Power Duals
- A full system where each cylinder has its own dedicated head-pipe and muffler. V&H Power Duals are the head-pipe half — the bit slip-ons don't reach. Pair with any V&H Touring slip-on for the full 2-into-2 build.
- Big Shots Staggered
- The cruiser-platform full system — head-pipes plus mufflers in one box, staggered offset visual. Built for Softail, Sportster, Dyna, Heritage. The classic V&H look that built the brand reputation in the 1980s.
- Short Shots
- Compact lower-pipe variant of Big Shots, sized for tighter chassis like FXR and Sportster where Big Shots length would foul the rider.
- Twin Slash
- Slip-on family with the angled "twin slash" muffler end-cuts. Available in 3" and 4" diameters. The compact-cruiser slip-on equivalent.
- Pro Pipe
- The 2-into-1 full system flagship for Touring. True merge collector. Where you go when you want measurable power gain rather than just sound.
- Hi-Output
- 4" or 4.5" slip-on with a broader-bore baffle and a harder, more aggressive note. Available in CARB-legal variants for selected M8 Touring. The louder slip-on of the V&H lineup.
- Torquer 450
- 4.5" wide-barrel slip-on tuned for low-end pull and a deep bass note. The diplomatic-volume choice — quieter than Hi-Output, deeper-sounding, more bottom-end on the dyno. 50-state legal in selected variants.
- Razorback 450
- Variant of the Torquer 450 with a different end-cap profile and slightly tweaked baffle. Same 4.5" wide-barrel concept, marginally different acoustic character.
- Eliminator
- 4" slip-on with a free-flowing internal design and broader proportions. Sits between Torquer and Hi-Output in volume — louder than Torquer, less aggressive than Hi-Output.
- VO2
- V&H's air intake line. Name plays on the medical term for maximum oxygen uptake. High-flow K&N-style filters with bike-specific velocity stacks.
- VO2 Cage Fighter
- The exposed-mesh metal-cage VO2 variant. Aggressive look, very high flow, no shroud — the "look at the air filter" option.
- VO2 Falcon
- Sleek enclosed-shroud VO2 variant with a stainless cage. The polished aesthetic — current flagship of the air intake line.
- VO2 Skullcap
- The low-profile, matt-black anodised VO2. Tucked-in build choice where the air cleaner shouldn't dominate the side of the bike visually.
- Fuelpak FP4 / FP4.2 / FX-1 / X
- V&H's Bluetooth-connected ECU tuning module. App-controlled, auto-tunes from existing O2 sensors, writes to the bike's ECU. The current generation lineup covers 2007-onwards Harleys; X is the 2014-2020 CAN-bus version, FP4.2 is the current M8 model.
- Auto-Tune
- The Fuelpak feature that calibrates the bike's fuel map from real-world riding data over twenty or so miles, adjusting for altitude, intake, exhaust, and ambient temperature. No dyno session needed.
- 50-State Legal / CARB EO
- An exhaust or intake variant that passes California Air Resources Board emissions and noise requirements alongside federal ones. Carries an EO (Executive Order) number printed on the part. UK and EU riders look at noise homologation instead.
Built in California. Heard everywhere.
Build Your Bike Around the Pipe
Browse 265 Vance & Hines parts — slip-ons, 2-into-1 systems, Power Duals, VO2 air intakes, Fuelpak tuners. Whether you're after a sound change on a stock 114" Road King or building a 12-hp gain on a 117" Street Glide, the catalogue covers the full system. Iron Pass members get an additional 17% off at checkout.