We carefully studied the entire OEM intercooler system. From these hours of research, we found several ways to that we could REDEFINE what a performance FMIC could be for your 10th Gen Civic.

From our aluminum cast end tanks with integrated air-foils to our 4-ply wire reinforced silicone we found opportunities for improvement in all areas of this kit.

Many flow simulations were performed to make sure we utilized the entire volume of the core and not just parts of it. Coupled with hours upon hours of driving on both city streets and highways we were able to collect tons of real-world data.

But don't just take it from us. Click the button Learn More below and check out an article from Super Street Magazine detailing some of the extensive testing that went into the design of our intercooler upgrade for the 2016+ Civic.

Reducing intake air charge temperature is the #1 job of the intercooler. We not only want to remove as much heat from the air as possible, we also want to be do it consistently. This means we cannot heat soak the core.

The temperature delta is the amount of heat being removed from the boosted air as it passes through the intercooler. The OEM core performs ok for 1-2 quick pulls on OEM power but quickly becomes saturated with stagnant heat. This means it can no longer do its job well. This is a major problem for any type of performance driving.

The 27WON intercooler both removes more heat, which improves performance, but also does not become heat saturated like the OEM core. It can withstand WAY more abuse.

• Middle Graph White Line = OEM
• Middle Graph Orange Line = 27WON Core

A big intercooler is pointless if you do not efficiently use the entire core volume. Verified by CAD flow simulations we designed the inlet and outlet end tanks to optimize flow distribution throughout the entire core. This ensures entire core is used; drastically improving the efficiency of the intercooler and thus releasing more power and potential.

Let's repeat this because it's important. Our internal airfoils better distribute the boosted airflow through the entire core increasing cooling efficiency compared to those without.

Select our Signature Orange pipe finish to add some flare under the hood and really stand out amongst the crowd.

Our 27WON silicone couplers are constructed of 4-ply reinforced silicone and we didn't stop there. We added integrated wire reinforcement to these couplers.

This drastically increases the strength of the silicone coupler while still allowing for proper flex and bending for engine movement.

Testing* was performed on our 2018 SI sedan which is fully bolted including a W1 turbo kit. The only variable in the above testing was our 27WON front mount intercooler system. We have three graphs shown here for a very good reason.

_{* Dyno testing on a Dyno Dynamics which are known to measure low compared to most other dyno's. Pay attention to the delta here and not as much to the Max numbers.}

• Red Line is the OEM intercooler system tuned on 92oct fuel
• Green Line is the drop-in result of the 27WON Intercooler System. No tuning changes were made. Drop-in results alone provided 20whp & 25wtq!
• Magenta Line is the tune optimized for the 27WON Intercooler System. With the increased efficiency and capacity of the 27WON FMIC Kit we were able to safely add more ignition advance to increase power under the curve. This was another 15whp!

The efficiency of an intercooler is directly related to the pressure drop from the cores inlet to its outlet, below we explain the importance of reducing pressure drop.

By definition, as it pertains to heat exchangers, pressure drop is the amount of "work" that is required to push the boosted air through the intercooler. The larger the pressure drop the greater the amount of work required. For best performance you want the least amount of drop you can have. By testing various core densities we were able to reduce the pressure drop from ~1.60psi to ~0.70psi thus improving overall performance.

This helps increase spool time because the turbocharger does not have to work as hard to push air through the core.

• Lower Graph White Line = OEM
• Lower Graph Orange Line = 27WON Core

When it comes to intercoolers…size matters. The frontal area of the core is the most critical dimension to increase the efficient cooling capacity of the intercooler. The OE 4.37in height is not sufficient, we increased the height 41% to 6.50in with width nearly unchanged. This maximized the frontal area behind the grill. Thickness was increased from 2.52in to 3.70in, a 47% increase. This resulted in a total core volume increase of 120%.

Unlike some options today, the 27WON Intercooler kit comes complete with intercooler, piping, and silicone couplers. The piping was specifically designed for the L15 engine found in the 10th Gen SI and Base model Civics.

A single seamless 2.25 inch pipe is used on the “hotside” and a 2.75 inch pipe is used on the “coldside”. Staggered pipe sizes were selected to optimize for power and drive-ability. The relatively smaller 2.25 inch hotside pipe will still support well over 500whp and its smaller size helps move the hot boosted airflow through the intercooler more quickly thus improving response. The larger 2.75 inch coldside pipe was also optimized to create a large “plenum” of air just ahead of the throttle body. This helps reduce turbo lag and improve transient response.

Our single pipe inlet and outlet minimizes the number of couplers and thus the number of potential boost leaks. Integrated into every coldside pipe is a single 1/8-27 NPT port for methanol auxiliary cooling/fueling.

Every 27WON Intercooler and Piping kit includes polished stainless steel T-bolt clamps for a complete and professional look.