The Redline Carbon Fiber Intake seamlessly blends performance and aesthetics to bring the ultimate intake for your 2015-2021 WRX STI. Constructed of 2×2 twill carbon fiber and finished in a high-quality gloss clear coat, the intake system’s presence in your engine bay does not go unnoticed.
Construction
The main airbox is constructed of multiple layers of 2×2 twill carbon fiber sheets for a true carbon intake through and through. High-quality gloss clear finish provides fade resistance from heat and UV light. A bespoke black Redline badge sits at the front of the integrated intake ducting. Air is filtered through a 35% larger (when compared to the standard SF Intake) pre-oiled filter and routed to the MAF housing which is bolted to the airbox by way of a black anodized billet aluminum adapter. The wire-reinforced black silicone coupler is sealed on either end with black anodized clamps for a very sleek install. A second billet plate can be removed from the fender side of the airbox to increase airflow and audible intake sounds of the system.
Velocity Stack MAF Housing
This intake system utilizes several unique features in an effort to maintain optimal flow for performance while minimizing turbulence. A custom conical air-filter element, CFD-designed velocity stack and unique air flow straightener grid are designed to smooth the incoming airflow as it passes the Mass Air Flow sensor for precise readings. The one-piece high-temperature plastic composite design saves weight and reduces heat transfer.
Installation
Installation of the Redline Intake is as simple as it comes for intakes with an integrated airbox and scoop. Follow our detailed instructions to install the supplied brackets and the entire assembly can be dropped in within a few minutes. The serviceability of the intake air filter is also straight forward once the initial installation has been completed.
Calibration
The Redline Carbon Fiber intake is compatible with existing COBB Off The Shelf Maps that support the standard SF Intake. For 2015-2021 STIs, that includes Stage 1+SF and Stage 3 OTS Maps.
Why
We’ve re-set the bar for Subaru performance intakes. The Redline Carbon Fiber Intake is the premier intake system you’ve been looking for. Upgrade the restrictive factory intake with a high flowing and aesthetically pleasing intake system.
Features
Subaru Redline Carbon Fiber Intake 2015-2020 STI
- High-Quality Gloss Finish
- Bespoke COBB Redline Badging
- Integrated Carbon Fiber Scoop
- Compatible with COBB OTS Maps
Stephen Meade (verified owner) –
Great product and amazing results! I absolutely love the sound and the power gains paired with the Cobb access port.
The spool of the turbo and the sound from the bov are mesmerizing and addictive, you would say for sure it’s aftermarket, I can’t believe the difference in the sound with the open air box option!
There is the slightest curve upwards on the drivers side of the lip of the intake which causes it the grommet to pop off the stand-off a little bit it’s so minor it’s hardly worth mentioning, and I will loosen everything and try to readjust again.
I used the Autometer DashLink and measured the HP before and after with on a few semi-hard pulls on the highway. Here are the results;
Elevation: ~2000ft (610m)
Ambient Temp: 39C (100F)
Fuel: 91
Mode: Sport Sharp, CDiff:M, rear biased
Before: 302-311HP, 16.2lbs boost
After: 323-335HP, 17.1lbs boost
*Obviously this number is calculated from a ODBII device and NOT a Dyno so take it with a grain of salt but I honestly would say it feels like a bigger HP increase of 20-30 over stock so I’m quite happy with it and cannot rate it less than 5 stars!
Highly recommend, if you are on the fence, just go ahead and pull the trigger, you won’t be disappointed! 👍🏻