Search by Vehicle
search help
Search by Category

Spectre 3991

Breather Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5
5.0 out of 5 stars 2 Customer Reviews
In Stock & Ready to Ship!


$10.49 USD
Shipping Promotion Image Find a Local Dealer

Information

This Spectre breather filter, also known as a crankcase vent filter, has a flange with an inside diameter of 10mm. By using the included adjustable worm gear clamp, this air filter will fit tubes with outside diameters from 3/8 inch to 1/2 inch (8-12mm). Spectre breathers use pre-dyed synthetic media for lasting color, feature a triple chrome-plated steel top and base, and come factory pre-oiled and ready to use. Note: Legal in California only for racing vehicles which may never be used, registered, or licensed for use upon a highway. See spectreperformance.com for CARB status on each part for a specific vehicle.
  • Triple chrome-plated steel top and base
  • Made with pre-dyed synthetic media for lasting color
  • Includes a stainless steel adjustable clamp
  • 10 mm flange inside diameter
  • Fits 3/8 inch to 1/2 inch (8-12mm) tubes
  • Offered with black, red, blue, or white media

Part SPE-3991 Product Specifications

Flange Inside Diameter0.375 in (10 mm)
Height1.75 in (44 mm)
Outside Diameter2 in (51 mm)
Top MaterialChrome
Top StyleMetal
Air Filter ColorBlack
Filter MaterialNon-woven Synthetic
Product StyleSpectre Breather Air Filter
Flange Length0.75 in (19 mm)
Weight0.2 lb (0.1 kg)
Product Box Height2.25 in (57 mm)
Product Box Length6 in (152 mm)
Product Box Width4 in (102 mm)
WARNING: Cancer and reproductive harm--www.P65warnings.ca.gov

Product Reviews

April 24, 2017 - Part 3991
Used to protect intake from sucking in motor oil via PCV. Paid like $12 and took 30 min or so to make it fit but final product was more than worth it. Looks great, preforms well, and just plain does what it's supposed to. This is the second product I've purchased from Spectre and it definitely won't be the last.

Jackson
Michigan
November 3, 2014 - Part 3991
This is a great breather. Hard to find in Chrome.

Frank
California
Review part 3991