TiC TGV Housings (15+ WRX)

TiC 2015 WRX TGV Housings


Turn In Concepts (TiC) specializes in engine, suspension, driveline and chassis enhancement. With a long racing heritage, TiC designs, manufactures and installs top-quality performance parts for automotive enthusiasts.

At its most basic a car's engine is an air pump. Plain and simple.
The more air you get in and out of it the more fuel you burn. 
The more fuel you can burn due to the larger amount of air means more power.
And lets be honest, that's why you're here.  You want more power, and quite frankly, we can't blame you.

So... How to get more power?

Well, a there's a few ways, but lets go back to the basics.  Bottom line you need more air, and more fuel. In the case of the TGV we're looking at more air.
The stock TGV is there to cause tumble for better air fuel mix.  Hence Tumble Generator Valve (or TGV), BUT in doing so it creates a problem for those of us seeking out more power.  It causes a restriction. This held true on the older Subarus, and is even more prevalent on the new cars. 

Here's why -
Like we said an engine needs to move air, and in the case of the new 2.0DIT motor from Subaru a good bit of air that is trying to get into the cylinder is running into a huge blockage.  That blockage is the TGV. Sure, they do open, BUT here's what we found some interesting things. The rod for the actuator.  JUST the rod, we're not counting the flapper or the screws or anything like that.  Just the rod, all by itself, TAKES UP ALMOST 30% of the port cross sectional area. That is not good for letting the engine breathe. We also found that the port size itself on the TGV assembly isn't as big as it can be.
So...  We made a TGV replacement that eliminates the rod, the flapper, the screws, AND has bigger ports. The outcome was brilliant.
With JUST the Cobb AP Stage 1 tune we picked up an immdiate increase of 30 lbs of torque on the bottom end, and a little more HP across the board.  AND that was on our super low ass reading, heart breaker Dyno Dynamics setup.

Once we did a custom tune for these we really started to see some gains.  Just this part with a Cobb Protune bumped Torque a peak of about 50 lbs in the mid-range and peak power increase 27 AWHP
Ok, now what about the install? 
Dude, it's so stupid simple my dog could do it if he had opposable thumbs.

This part may affect your cars emissions, and/or your car's ability to pass an emissions test.  
We recommend this part for off road or competition use only.


Vehicle Fitment

  • 2015+ Subaru WRX


warning_symbolWARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to https://www.P65Warnings.ca.gov/passenger-vehicle.

More Information
SKU 1001-03-0037
Product Type Engine, Intake and Exhaust
Engine Intakes and Intercoolers
Intake and Exhaust Intakes and Intercoolers
Brand Turn-In Concepts
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