Fits:

• 2017 – 2021 Honda Civic Type R (Hatch FK8)
  
• 2023+ Honda Civic Type R (Hatch FL5)
  
• 2023+ Acura Integra Type S (Hatch DE5)

______

Now look, we all know by now that Honda didnt prioritize looks much underneath the engine bay of the Civic X. Just look around and you can find cost cutting measures everywhere and the stock coolant expansion tank in the upper left corner is no exception. This did not change with the launch of the latest FL5 Type R and DE5 Type S either. Same plastic tank on both!

It just screams, BASIC!Plus, its known to develop cracks over time and leak. Ouch!

So, what are we going to do about that? Well, how about design a sleek lookingupgraded coolant tankthat holds the pressure. It is made ofstrong aluminum, fully seam welded to prevent leaks, has a level check dipstick thats an accomplishment all in and of itself. We round out this kit withproper fitmentsforCivic X 1.5T Non-Si, Si, as well as the2.0T Type R FK8. We were able to pick upFL5/DE5 applications too. Looks like you just found your next mod fam!

Whats an egg-shell color, gets dirty quickly, sticks outs amongst all the metal underneath the hood of your 10th Gen Civic?If you guessed your stock plastic expansion tank aka coolant tank, then you guessed right. Chuck that boring plastic out the window and get down with our fully seam welded aluminum expansion tank.Weve hit the looks out of the park with this one.Just look at those welds and smooth high temp paint finish.

And pay careful attention to the filler neck and how its welded from the inside out! Why? Because its one less weld to see and gives us a much cleaner design. Thats something youll only find on this Coolant Tank.

The coolant expansion tank is asimple devicewith a couple offunctionson your late model Civic or Integra. It holds extra coolant, its a spot to refill and replace lost coolant, its the highest point in the system so will be used to bleed the system If needed, and most importantly it pressurizes the coolant/water mixture to raise its boiling point. Again, a simple, but important part of the cooling system on all 1.5T and 2.0T applications.

If it develops a crack however, it cant hold the pressure and thats whats been happening with the stock coolant tanks on these cars for a while.The stock plastic dulls, gets yellow and brittle over time leading to cracks and worse!Part of the solution here involvedswitchingtoaluminum constructionfor strength. No more brittle plastic. Weve rated these tanks to hold over 30PSI, well above OE cap pressure (CTR) of 1.3 BAR. Thats above what your cooling system will see at any given time so you know these are built to perform.

As with everything we put out, we want a simple yetprofound upgrade without the fuss. Never visit another hardware store in the middle of an install ever again. Well include everything you need to get your upgraded coolant tank installed in about an hour andbe the show-off at your next Honda meet.

Ok, youre probably thinking to yourself, how are you going tocheck the level of the coolant?A sight glass or plastic tube? Nope, thats old school and boring.Plus, they also leak over time and discolor so why would be introduce another version of issue we are solving in the first place?

Enter the dipstick.Yes, theyve been used for a long time on cars for checking things like oil. But, why not coolant? So, we designed this sick looking dipstick that allows for a quick check of the coolant (follow OE instructions for removal of coolant cap). Simply unscrew the cap, dip the dipstick down to the neck of the coolant tank, and see if there is coolant on the threads. Top off as needed to get coolant to at least half way (7 threads). When youre done, simply hang thedipstick on your key chain, put in the glovebox, or stash it somewhere creative with the included holster.

Ourmodular designallows for fitment across multiple models by selecting theappropriate NPT fittingsspecifically for your trim. No need to retrofit or modify. Our coolant tank will work right out of the box.