Sold out
Weapon R 86-89 Honda Accord LXI / 86-91 Prelude Secret Weapon Intake Weapon R WPN301-133-101
Click to zoom in

Weapon R 86-89 Honda Accord LXI / 86-91 Prelude Secret Weapon Intake

Weapon R
WPN301-133-101
Cold Air Intakes
Out of stock
$ 324.45

SKU: 301-133-101

Weapon R 86-89 Honda Accord LXI / 86-91 Prelude Secret Weapon Intake

This Weapon R Secret Weapon Intake replaces the restrictive factory airbox on 1986-1989 Honda Accord LXI and 1986-1991 Honda Prelude models with a free-flowing system. The mandrel-bent aluminum tube and high-flow filter deliver more air to the engine for noticeable gains in horsepower and torque. Drivers experience sharper throttle response and improved engine sound during acceleration.

Key Features

  • Polished Aluminum Intake Tube: Mandrel-bent 6061-T6 aluminum construction creates a smooth uninterrupted path for high-velocity airflow into the engine.
  • High-Flow Conical Air Filter: 6-inch by 4.5-inch dry nano-fiber filter captures dirt while allowing 99% more air than stock for power gains up to 11 HP.
  • Dragon Heat Shield: Patented three-layer design with aluminum core and Spectra Shield mesh blocks radiant engine heat to pull in cooler denser outside air.
  • Reinforced Silicone Couplers: Flexible high-temp silicone connects securely to throttle body and mass air sensor without leaks or cracks.
  • Stainless Steel Band Clamps: Corrosion-resistant clamps provide reliable tension for vibration-free performance over time.

Product Notes

  • Filter is washable and reusable with Weapon R cleaning kit for ongoing performance.
  • System includes all necessary hardware for complete assembly.
  • Product weight 5.2 lbs ships in 23.5 x 13 x 11 inch box.

Installation Notes

  • Professional installation recommended.
  • Bolt-on design removes stock airbox in under 60 minutes no cutting or permanent modifications.
  • Uses factory mounting points and includes billet aluminum MAF sensor adapter.

This Part Fits

Year Make Model Submodel
1986-1989 Honda Accord LXi
1986-1991 Honda Prelude 2.0 Si
1988-1989 Honda Prelude 2.0 Si 4WS
1990-1991 Honda Prelude Si
1990-1991 Honda Prelude Si 4WS
1990-1991 Honda Prelude Si ALB

Why Choose Weapon R?

  • Brand engineered performance intakes since 1997 with dyno-tested results.
  • Components built to exceed OEM standards in durability and flow.
  • Precision manufacturing ensures perfect fit on Honda B-series engines.

Frequently Asked Questions

  • Q: Will this fit my 1987 Honda Accord LXI with B20A engine?
    A: Yes direct bolt-on replacement for all 86-89 Accord LXI models with stock throttle body.
  • Q: What materials are used in construction?
    A: Polished 6061-T6 aluminum tube silicone couplers stainless clamps and dry nano-fiber filter media.
  • Q: What warranty coverage applies?
    A: Lifetime limited warranty on intake tube one year on filter against manufacturing defects.

Shipping & Handling

  • Method: UPS Ground or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: Secure foam-lined box 23.5 x 13 x 11 inches
  • Weight: 5.2 lbs product 7 lbs shipping

Request For Information

Have questions about Weapon R 86-89 Honda Accord LXI / 86-91 Prelude Secret Weapon Intake? Fill out the form below and we'll get back to you by the next business day.
Air Intake Systems

Air Intake Systems

Air intake systems for Hellcat, Trackhawk, TRX, HEMI, and import performance platforms are stocked at Black Ops Auto Works. Shop cold air intakes, short ram intakes, air boxes, intake elbows, mass air flow sensors, scoops, snorkels, and silicone couplers for street cars, trucks, Jeeps, and supercharged Mopar builds. Every intake system is filterable by vehicle platform, engine, and intake style so the correct part ships the first time. Black Ops Auto Works carries 4,427 air intake SKUs across cold air intakes, short ram intakes, and supporting components. What This Category Covers An air intake system pulls outside air into the engine and filters it before combustion. Upgrading the factory intake with a cold air intake, short ram intake, or carbon fiber system can improve airflow, throttle response, induction sound, and horsepower potential on compatible applications. Cold Air Intakes vs Short Ram Intakes Cold air intakes route the filter away from engine bay heat for cooler, de...

View Air Intake Systems Products
Cold Air Intakes

Cold Air Intakes

Shop cold air intakes, short ram intakes, closed-airbox intake systems, replacement air filters, intake tubes, and MAF housings from K&N, AEM, aFe Power, Airaid, S&B Filters, Injen, Roush, Volant, Corsa, Mishimoto, HPS Performance, Cobb Tuning, JLT, Vararam, Steeda, and other performance intake brands. Find full open-element cold air intakes, sealed-airbox systems, dry and oiled air filters, replacement drop-in filter panels, MAF sensor housings, and complete intake tube kits. Cold air intakes for domestic muscle, sport-compact tuners, diesel trucks, off-road 4x4, Euro performance, and modern sport SUVs Mustang, Camaro, Challenger, Charger, F-150, Silverado, Ram, Tundra, Tacoma, 4Runner, Wrangler, Bronco, Cummins, Duramax, Power Stroke, WRX/STi, Civic Type R, GR86, Supra, GR Corolla, BMW M2/M3/M4, Golf R, and hundreds of additional platforms. Filter by vehicle, intake style (open element, closed airbox, short ram, tube kit), filter media (oiled cotton, dry synthetic), tun...

View Cold Air Intakes Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×