This is our one-piece replacement for the factory intake coupler on the 2023+ Civic Type R (FL5) and 2024+ Integra Type S (DE5). Four-layer silicone, an anodized billet aluminum EVAP valve adapter, and titanium hardware, in place of Honda's three-piece connection and plastic elbow. No check engine light, no tuning.
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Find your setup
| Select |
If you're running |
SKU |
| PRL HVI & PRL Inlet |
PRL HVI with any PRL TIP |
TSP-FL5-SIL-HVI |
| PRL HVI & Eventuri Inlet |
PRL HVI with the Eventuri TIP |
TSP-FL5-SIL-HVI |
| PRL HVI & RV6 R660AS Inlet |
PRL HVI with the RV6 R660AS TIP |
TSP-FL5-SIL-HVI |
| PRL HVI & Infinity Designs Inlet |
PRL HVI with the Infinity Designs TIP |
TSP-FL5-SIL-HVI |
| PRL HVI & Stock Inlet |
PRL HVI with the OEM TIP |
TSP-FL5-SIL-HVI-3 |
| Stock Intake & Stock Inlet |
OEM intake with the OEM TIP |
TSP-FL5-SIL-HVI-2 |
TIP is the Turbocharger Inlet Pipe. HVI is the High Volume Intake, PRL's intake kit.
The coupler bridges your intake and your turbo inlet pipe, so the version you need depends on what's on both ends. Running something that isn't listed, or not sure what you have? Send a photo of your engine bay to support@twostepperformance.com before you order. Takes a minute, saves a return.
What it does
Honda connects the intake to the turbo inlet with three separate pieces and a plastic elbow, which they call a Jet Purge Air Flow Joint Assembly. It works, and it's cheap to build at scale, which was the point. Every joint is a clamp, though, and every clamp is somewhere a leak can start. The elbow is also sold as an assembly, so snap one port during an install and you're buying the whole thing.
Silicone is the right material for a part living between a turbocharger and an engine. It stays flexible across a temperature range where plastic gets brittle, it absorbs engine movement instead of transmitting it, and four bonded layers hold their shape instead of ballooning. Plastic rarely fails dramatically. It just gets old and cracks, usually at the worst possible time.
The EVAP valve moves from plastic to anodized billet aluminum, machined from solid rather than molded, with titanium hardware so nothing corrodes. The adapter puts the valve exactly where the factory elbow put it, with the same hose diameters, so the ECU reads what it expects to read.
Install
The factory assembly unclamps, this clamps in, and the EVAP purge valve moves to the billet adapter with two supplied titanium screws. No cutting, no drilling, nothing to splice. About 10 minutes with basic hand tools.
Hand tight only. This isn't a pressurized connection and it doesn't need force to seal. Titanium and carbon will bend or crack before they give you any warning.
Before you buy
What do TIP and HVI mean?
TIP is the Turbocharger Inlet Pipe, the pipe running from your intake into the turbo. HVI is the High Volume Intake, PRL's intake kit. If you're not sure what you have, send us a photo of your engine bay and we'll tell you.
Which version do I need?
It depends on your intake and whether you've changed the turbo inlet pipe. The options are written as combinations, so find the one that matches both ends of your setup. If you're unsure, send us a photo of your engine bay and we'll tell you which one.
Does it fit an inlet pipe that isn't listed?
Possibly, but we'd rather confirm than guess. Send us a photo of your engine bay with what you're running and we'll tell you which version fits.
Will it throw a check engine light?
No. The billet adapter keeps the EVAP valve in the factory position, so the ECU sees what it expects. No tuning required either.
How hard is the install?
Straightforward. The factory assembly unclamps, this clamps in, and the purge valve moves over. About 10 minutes with basic hand tools. The only thing to be careful about is how hard you tighten it.
Will this fit anything other than the FL5 and DE5?
Not currently. It's designed around the 2023+ Civic Type R and the 2024+ Integra Type S.
What does the warranty cover?
One year from the date of purchase, plus support if anything comes up during install or use. If something goes wrong inside that window, message us with your order number and a photo and we'll take it from there.
What's in the box?
The four-layer silicone coupler, the anodized billet aluminum EVAP valve adapter, titanium hardware, and four Breeze worm gear clamps made in the USA.