What are the best Weapon R parts for your build? It comes down to your platform and your goal: the Secret Weapon intake for sharper throttle response on the FR-S/BRZ/86, a universal oil catch can to keep oil vapor out of the intake tract, or a polished reservoir tank to dress up the engine bay. Weapon R specializes in polished aluminum intake and engine-bay parts across Nissan, Toyota, Scion, and Mitsubishi platforms. Always check your year and model against each product's fitment before ordering.
An intake's job is to feed the engine cooler, denser air with less restriction, which is why intake design focuses on filter placement, tube diameter, and smooth airflow. Oil catch cans solve a different problem: they trap the oil vapor and blow-by that the PCV system would otherwise route back into the intake, keeping valves and intake tracts cleaner over time. Reservoir tanks and dress-up parts round out the engine bay, replacing plain factory plastic with polished aluminum. When shopping, note whether a part is vehicle-specific or universal, since this collection includes both.
About Weapon R
Weapon R is an aftermarket performance brand known for two things: the Secret Weapon intake line and polished aluminum engine-bay parts. The Secret Weapon intake for the 2013-2016 Scion FR-S, 2013-2019 Subaru BRZ, and 2017-2019 Toyota 86 is the brand's signature product here, built around a polished intake tube and high-flow filter aimed at the FA20-powered twins. The polished finish is a Weapon R hallmark across the line: the power steering reservoir tank for the 2003-2006 350Z/G35 and the 18oz universal oil catch can both wear it, and the catalog stretches from universal coolant catch cans to vehicle-specific pieces like the oil catch can for the 2003-2006 Mitsubishi Evo and a 4-2-1 race header for the 2005-2010 Scion tC.
For intake shoppers, compare with Performance Intake Manifolds and read Best Cold Air Intake for WRX. For exhaust-side upgrades, see High Performance Headers & Manifolds and the full Exhausts collection.
Weapon R FAQ
Will a Weapon R intake require a tune?
Some intakes change airflow enough to affect fuel trims, especially on cars with sensitive MAF calibration. Check the product's notes and your year and model, and talk to your tuner if you're unsure.
Do I need an oil catch can?
A catch can traps blow-by oil before it reaches the intake, which matters most on direct-injection and turbocharged engines prone to valve deposits. Universal cans like Weapon R's 18oz unit fit most bays with basic mounting.
Are Weapon R parts vehicle-specific or universal?
Both. Intakes, reservoir tanks, and some catch cans are built for specific chassis, while other catch cans and coolant tanks are universal. Read each product title carefully for the application list.
How hard is installation?
Most parts here are bolt-on with basic hand tools: catch cans and reservoir tanks are straightforward, intakes take an afternoon, and headers are the most involved job in the lineup. If you're not comfortable, a shop can handle any of them.
