--- product_id: 431989466 title: "Performance+ Octane Booster: Boosts Octane and Improves Engine Performance, 16 Ounce Bottle Treats up to 18 Gallons, 99-2020" brand: "k&n" price: "NZ$38" currency: NZD in_stock: true category: "K&N" url: https://www.desertcart.nz/products/431989466-performance-octane-booster-boosts-octane-and-improves-engine-performance-16 store_origin: NZ region: New Zealand --- # Boosts engine power by up to 6% Cleans fuel injectors & reduces engine knocking Treats up to 18 gallons per 16oz bottle Performance+ Octane Booster: Boosts Octane and Improves Engine Performance, 16 Ounce Bottle Treats up to 18 Gallons, 99-2020 **Brand:** k&n **Price:** NZ$38 **Availability:** ✅ In Stock ## Summary > ⚡ Unlock Peak Performance, One Fill-Up at a Time! ## Quick Answers - **What is this?** Performance+ Octane Booster: Boosts Octane and Improves Engine Performance, 16 Ounce Bottle Treats up to 18 Gallons, 99-2020 by k&n - **How much does it cost?** NZ$38 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/431989466-performance-octane-booster-boosts-octane-and-improves-engine-performance-16) ## Best For - k&n enthusiasts ## Why This Product - Trusted k&n brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Engine Detox:** Specially formulated to clean fuel injectors and internal components, reducing knocks, pings, and hesitation. - • **Full Tank Treatment:** One 16oz bottle optimizes performance for up to 18 gallons of gasoline—effortless and efficient. - • **Parts-Friendly Formula:** Safe for catalytic converters and oxygen sensors, ensuring peak performance without compromise. - • **Power Surge in Every Drop:** Experience smoother acceleration and up to 6% measurable power gains—feel the difference instantly. - • **Made in the USA, Trusted Worldwide:** Backed by K&N’s legacy of quality and a 4.6-star rating from over 600 enthusiasts. ## Overview K&N Performance+ Octane Booster is a premium fuel additive designed to increase octane levels, clean fuel injectors, and enhance engine responsiveness. Each 16oz bottle treats up to 18 gallons of gasoline, reducing engine knocking and improving throttle response safely without harming catalytic converters or oxygen sensors. Trusted by professionals and rated 4.6 stars, it’s the go-to solution for millennial drivers seeking effortless power and efficiency gains. ## Description K&N Octane Booster boosts power and helps increase performance by reducing detonation, resulting in less knocks, pings and hesitation. This product helps clean internal fuel system parts, while safe on catalytic converters and oxygen sensors. ## Features - BOOSTS POWER: Octane boost helps increase performance when added during gas fill up - CLEANS FUEL INJECTORS: Specially formulated to clean internal fuel system parts and components - INCREASES OCTANE: Helps your car run better by reducing knocks, pings, and hesitation - SAFE ON PARTS: Safe for use on catalytic converters and oxygen sensors - TREATS A FULL TANK: Formulated to treat up to 18 gallons of gasoline - ​MADE IN THE USA: Quality and performance you can count on ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09Y2CLZK7 | | Brand Name | K&N | | Contains Liquid Contents? | No | | Customer Reviews | 4.6 4.6 out of 5 stars (659) | | Included Components | Cleaner | | Item Type Name | Octane Booster, 16oz | | Item Weight | 0.95 Pounds | | Manufacturer | K&N Engineering, Inc. | | Model Number | 99-2020 | | Number of Items | 1 | | Part Number | 99-2020 | | UPC | 024844387257 | | Warranty Description | 3 Months | ## Product Details - **Brand:** K&N - **Contains Liquid Contents:** No - **Item Weight:** 0.95 Pounds - **Manufacturer:** K&N Engineering, Inc. - **Number of Items:** 1 ## Images ![Performance+ Octane Booster: Boosts Octane and Improves Engine Performance, 16 Ounce Bottle Treats up to 18 Gallons, 99-2020 - Image 1](https://m.media-amazon.com/images/I/61Ro0Rqf1hL.jpg) ## Questions & Answers **Q: Can i mix fuel cleaner and octane boost? Or will it damage anything?** A: Octane boost has small amount of fuel cleaner in it. Use 1st, wait at least 60-90 before adding the other. Pending miles on vehicle, driving habits, along with realistic expectations/results with using product(s); may be 💰👌 or 💸💸💸💸. **Q: Why does it say "for off road use only" on the back under directions ?** A: 2 reasons. 1 so the goverment doesnt pull your car into a smog testing area and you fail the test. 2 so you dont blaim it on k&n when you fail said test. **Q: Can I use this every fill up?** A: yes **Q: How much does it increase the octane?** A: Talking to a mechanic, he said that most gasoline octane boost additives (unless specifically stated) increase the octane rating somewhere between 3 or 4 points. ## Frequently Bought Together - K&N Performance+ Octane Booster: Boosts Octane and Improves Engine Performance, 16 Ounce Bottle Treats up to 18 Gallons, 99-2020 - K&N Performance+ Fuel System Cleaner: Restores Performance and Acceleration, 16 Ounce Bottle Treats up to 21 Gallons, 99-2050 , Black - K&N Motor Oil: 5W-30 Synthetic Engine Oil: Premium Protection, High Mileage, 1 Quart --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.nz/products/431989466-performance-octane-booster-boosts-octane-and-improves-engine-performance-16](https://www.desertcart.nz/products/431989466-performance-octane-booster-boosts-octane-and-improves-engine-performance-16) --- *Product available on Desertcart New Zealand* *Store origin: NZ* *Last updated: 2026-06-24*