Torque Solution High Volume Intake Manifold for Subaru WRX/STI

If you’re looking to kick your Subaru WRX or STI up a notch, the Torque Solution High Volume Intake Manifold is a solid choice. Designed for the 2006-2014 WRX and the 2004-2021 STI with EJ20/EJ25 engines, this manifold is all about maximizing airflow without the hassle of complicated installs.

Crafted from cast aluminum and CNC-finished for precision, this manifold doesn’t just look good—it performs. The large tapered and radiused runners mean you’re getting more air into your engine, which is a game-changer for high horsepower builds. Plus, it retains the stock throttle body position, making the installation straightforward. No need to fiddle with custom FMIC piping; it fits right in with your existing setup!

What’s even cooler is that this manifold can be flipped to a forward-facing configuration by swapping the vacuum block around. Just keep in mind, you’ll need to do a bit of customization for that setup. It’s all about versatility, and this manifold delivers.

We’ve seen some impressive gains in both mid-range and peak power during testing, whether you’re running a stock location or a rotated turbo setup. It’s designed to work seamlessly with both OEM and aftermarket TGVs, which is a huge plus if you’re piecing together your dream build.

The natural raw aluminum finish is ready to bolt right on, or you can powder coat it to match your ride’s style. Either way, it’s going to stand out in the engine bay.

Features

• CNC'd Cast Aluminum for durability
• Increased volume over the OEM intake manifold
• Large tapered/radiused runners for better airflow
• Maintains stock throttle body position for easy installation
• Compatible with both OEM and aftermarket TGV housings
• Standard or reverse rotation capable
• Reversible billet aluminum vacuum block for customization
• Limited lifetime warranty for peace of mind
• Works with FMIC piping kits designed for the OEM manifold

Installation Notes

• Need the install guide? CLICK HERE
• For WRX models from 2008-2014, you might need some extra parts from an STI to get everything working smoothly.

Fitment

• Subaru WRX 2006-2007
• Subaru WRX 2008-2014 (additional STI parts may be needed)
• Subaru WRX STI 2004-2021

Important Notes

• If you’re using stock location turbo setups, be sure to grab a minimum 19mm IM/TGV spacer for better inlet clearance. This setup has been confirmed to fit with all known inlets.
• The Boomba DBW throttle body bolts on directly—no adapters needed!
• While some smaller TMICs might work with custom brackets, we can’t guarantee fitment since we haven’t tested those configurations.

In short, if you’re serious about your Subaru performance and want something that’s easy to install, looks good, and actually delivers on power, this intake manifold is worth a look.