Description

The Ultimate Plug-and-Play Nitrous System for Harley-Davidson® V-Twins

Instantly Add 40 Horsepower on 91 Octane Pump Gas

Patented Constant Horsepower Technology – No Bottle Heater Required

The Straightline Performance Harley-Davidson® V-Twin Complete Nitrous Kit is engineered for riders who demand instant horsepower without sacrificing reliability or everyday rideability. Whether you’re cruising on the street, competing at the drag strip, or simply looking for a serious performance advantage, this complete plug-and-play system delivers an instant 40 horsepower increase at the push of a button—all while running on 91-octane pump gas.

Unlike traditional nitrous systems that require bottle heaters, pressure gauges, or CO₂ bottle pressure regulators, the Straightline Performance system features our patented Controlled Holtzman Nitrous Nozzle, designed to maintain a consistent nitrous-to-fuel ratio across a wide range of bottle pressures. The result is smooth, repeatable horsepower every time you activate the system.

This revolutionary nozzle technology eliminates the constant bottle pressure management required by conventional nitrous kits. Simply fill the bottle, install the system, and ride.

Designed specifically for Harley-Davidson® and most V-Twin motorcycles, the system installs cleanly and discreetly. On most touring models and baggers, the nitrous bottle mounts neatly inside one of the rear saddlebags, keeping the installation hidden while maintaining easy access for refilling.

Activation is simple and flexible. Riders can use the included momentary activation button or integrate the system into the factory horn button using an optional bypass switch for an incredibly clean, factory-looking installation.

Every kit is engineered for dependable operation, easy installation, and maximum performance, making it one of the most advanced and user-friendly nitrous systems available for V-Twin motorcycles.

Features & Benefits

• Complete plug-and-play nitrous system
• Designed specifically for Harley-Davidson® and V-Twin motorcycles
• Dyno-tested 40 horsepower increase
• Patented Controlled Holtzman Nitrous Nozzle
• Consistent horsepower regardless of bottle pressure
• No bottle heater required
• No CO₂ pressure system required
• No constant pressure monitoring
• Compact bottle design
• Hidden saddlebag bottle mounting on most baggers
• Premium billet components
• High-quality braided lines
• Precision-machined fittings
• Simple installation
• Designed and manufactured by Straightline Performance

Patented Controlled Holtzman Nozzle Technology

The heart of the Straightline Performance Nitrous Kit is our exclusive Patented Controlled Holtzman Nozzle.

Unlike conventional nitrous systems that lose horsepower as bottle pressure changes, the Holtzman nozzle automatically compensates across varying pressures to maintain a more consistent nitrous and fuel delivery.

Benefits include:

• Consistent horsepower output
• Improved fuel distribution
• Smoother nitrous engagement
• Increased reliability
• Reduced tuning sensitivity
• Safer operation
• No bottle heater required
• No CO₂ bottle pressure regulator required

Simply install the system and ride without constantly chasing bottle pressure.

Simple Activation Options

The kit offers multiple activation methods to match your riding style.

Included Momentary Push Button

• Simple operation
• Instant nitrous activation
• Easy installation

Factory Horn Button Activation

For an ultra-clean installation, riders can utilize the factory horn button by installing a bypass switch.

This allows:

• Factory appearance
• Hidden activation
• Convenient operation
• Clean handlebar setup

Easy Hidden Bottle Installation

The compact bottle design makes installation exceptionally clean.

On most Harley-Davidson® touring motorcycles and baggers, the bottle mounts securely inside the rear saddlebag, keeping the system:

• Hidden from view
• Protected from the elements
• Easily accessible for refilling
• Clean and professional looking

Compatibility

Designed for most:

Harley-Davidson®

• Touring Models
• Road Glide
• Street Glide
• Road King
• Electra Glide
• Ultra Limited
• Softail Models
• Dyna Models
• Sportster Models (application dependent)

Also Fits

• Most American V-Twin motorcycles

Please verify fitment before ordering.