K&N Fuel Injection Style Air Box for Sprint Cars
Light weight yet durable, K&N's Sprint Car Style air box is a must for any racer currently using traditional multi-siamese stacks. Constructed from ultra-light weight carbon fiber and weighing in at just under 3-1/2 lbs, K&N's Sprint Car Style air box provides ample air flow for your racing needs.
CARBON FIBER INJECTION STACK FILTER
Lightweight, yet durable, K&N's Carbon Fiber Injector Stack Filter is a must for any racer currently using traditional multi-Siamese stacks. Constructed from ultra-light weight carbon fiber. A Carbon Fiber Injector Stack Filter provides ample airflow for your racing needs. The base does not have any holes cut through, so it can fit most any stack configuration. Once the base has been put in place, simply slip the main filter assembly over the stacks. Supplied spring clip clamps keep the filter securely together for positive seal and ease of servicing. Extra large box. 27 3/16" x 16 1/8" OD.
Part# 100-8580
If maximum airflow is what you are looking for, this airbox is your ticket, flowing at up to 2700 CFM. K&N has constructed the base portion of this assembly from carbon fiber to fit from 2"to 2-5/8" Hilborn, Kinsler and Engler stacks. This allows you to do away with clamping a filter on to each individual ram tube. Once the base has been put in place, simply slip the main filter assembly over the stacks. Easily done and at only 3.4 lbs., this airbox will allow your vehicle’s engine to breathe all the clean air it needs to make you a winner. As with all K&N filters, this is a washable and reusable air filter. Simply use our K&N oil and cleaner to service your filter.
| Applications | K&N Air Box |
| Small Sprint box w/ filter top, no holes in base, fits two injectors** | 100-8569 * |
| Medium Sprint box w/ filter top, no holes in base, fits four injectors** | 100-8570 * |
| Medium Sprint box base, no holes | 100-8573 |
| Medium Sprint box with top/sides only | 100-8575 |
| Medium Sprint box 4" Tall with hardware | 100-8576 |
| Solid Medium Base | 100-8577 |
| Medium 4” Height Air box, no base | 100-8578 |
| Large Sprint box with solid base, spring clips and 2.5” air horn seals | 100-8558 |
| Large Sprint box with solid base, spring clips and 2.75” air horn seals | 100-8559 |
| Large Sprint box base, Hilborn rotary injection base, with hardware | 100-8574 |
| Large Sprint box w/ filter top 6 3/4" center spread** | 100-8562 * |
| Large Sprint box w/ carbon top 6 3/4" center spread** | 100-8563 * |
| Large Side filter w/ filter top only** | 100-8564 |
| Large Base Plate Only, holes are not pre cut | 100-8565 |
| Large Side filter w/ carbon top only** | 100-8566 |
| Large Sprint box w/ filter top, no holes in base** | 100-8567 * |
| Large Sprint box w/ filter top 7" center spread** | 100-8568 * |
| Large Sprint box base plate with 4 1/2" c-c, holes | 100-8571 |
| Large Carbon Fiber box with base and spring clamps | 100-8580 |
| Large Base Plate Only 12 5/8" x 17 3/4" no rubber or holes** | 100-8590 * |
| Large Box 4" Tall | 100-8591 |
| Large Carbon Fiber box with base – 4 rubber inserts and spring clamps | 100-8592 |
* These are complete units, base plate, side filter and top
** Side filter is glued to top on all units
PreChargers
Fits Small Box:
100-8569PK - Black
100-8569PR - Red
Fits Medium Box:
100-8570PK - Black
100-8570PR - Red
100-8570PY - Yellow
Fits Large Box:
100-8562PK - Black
100-8562PR - Red
100-8562PL - Blue
100-8562PY - Yellow
These filters are legal ONLY for racing vehicles. Not applicable, nor intended for use on emission controlled street or highway vehicles.