DESCRIPTION
After a year of hard work and testing, we're ready to release our EZ30 / EZ36 into ZN6 / 86 / BRZ Engine Swap Kit! We have already produced many of the components, however we want to pre-order 10 qty to confirm the hype is real and get some of the harder to produce items going. You will pay 60% now, then 40% when we're ready to ship. Once we hit 10 qty it will take 8 weeks to complete and ship the kit. We will have the count below this text with dates to show how many we've pre-sold.
Use discount code EZN6DEPOSIT to pull 40% off the total for the deposit, it cannot be used for any other product but this. IF YOU DON'T PAY THE REMAINDER FOR 2 WEEKS we'll go to the next in line and you'll lose your spot. $4,799.99 now and $3,200 when we're complete!
Kits Pre-Sold
1 qty - 10/21
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Six cylinders. Perfectly balanced. This is more than just a swap kit, it's a better philosophy. An engine swap that finally makes sense.
Rethinking the Engine Swap
Engine swaps have become unnecessarily expensive, complicated, and often disappointing. Spending $15,000–$25,000 to make modest power, compromising chassis balance, and creating a nightmare to maintain isn't our idea of an upgrade. We believe a great engine swap should deliver the most power, character, and reliability for the least amount of money and unnecessary effort. Not maximum effort for minimum results. We wanted something different for the ZN6 / 86 / BRZ chassis. Something that preserved everything we love about the car while fixing what we don't.
The Engine That Was Hiding in Plain Sight.
Enter the Subaru EZ30R and EZ36 H6. A naturally aspirated flat-six with an incredible exhaust note, substantial torque/hp, and surprisingly affordable availability. These engines retain the low center of gravity and compact packaging that make the ZN6 chassis special, without the weight penalties of many traditional engine swaps. The EZ weighs just 344 lbs, only 24 lbs more than the factory FA20. Even better, the factory engine mounts align with the ZN6 subframe, and the engine works with the existing transmission architecture. No reinventing or cutting the entire car just to enjoy six cylinders. It's the kind of compatibility that makes you wonder why this swap wasn't popular years ago.
Real Power. Real Torque. Real Results.
Our naturally aspirated EZ36-powered ZN6 produced 270 wheel horsepower and 270 wheel torque on E85, verified on a Dynojet, followed by successful real-world track testing. No elaborate engine build. Just six-cylinder displacement, thoughtful supporting modifications, and proper engine management. The result is immediate throttle response, usable torque, a broad powerband, and an unmistakable flat-six soundtrack. This isn't about chasing a peak horsepower number for the internet. It's about making the car faster, more responsive, and dramatically more exciting every time you drive it. And for builders interested in going further, the EZ30R offers additional potential for future forced-induction development.
Everything You Need. Nothing You Don't.
The Chase Bays Stage 1 – Just the Essentials package brings together the critical systems required to integrate the EZ30R or EZ36 into your 86 / BRZ / FR-S THE RIGHT WAY. Rather than forcing you to research, source, fabricate, and piece together dozens of unrelated components, we've engineered a coordinated collection of solutions that work together based on 20 years of product design and on track experience. Engine management, wiring integration, fuel delivery, cooling, oil management, intake, headers, and clutch hydraulics are all addressed. Every component has a purpose. No unnecessary upgrades, no cosmetic filler, and no paying for things that don't meaningfully improve the finished car. Though...it looks incredible even in minimalist form.
Engineered Around the Car, Not Against It.
The beauty of this swap is how much of the original ZN6 architecture remains intact. Factory engine mounting locations, transmission, driveshaft, shifter, and compatible clutch/flywheel architecture dramatically reduce the amount of custom work normally associated with an engine conversion. The Link G5 Plug-in ECU provides standalone engine management with wideband capability, while our wiring adapter addresses engine-to-chassis integration. A complete AN fuel system with Fuel Rails, Fuel Pressure Regulator, 10-micron Filter, Flex-Fuel integration, and upgraded Fuel Pump addresses the EZ30/EZ36 fueling requirements. Purpose-designed cooling components, a swirl pot, external oil cooler, and oil pressure/temperature monitoring help prepare the car for SAFE and demanding use. Our 6-2-1 headers complete the package with proper packaging and the sound that makes this engine so special.
Built to Be Driven. Built to Be Worked On.
We create products used to be driven, hard. On road courses, through mountain roads, and sideways on track, and even brutal traffic headed to work. That means prioritizing serviceability, straightforward packaging, thermal management, and simplicity everywhere possible. The ZN6 is already one of the easiest modern chassis to work on, and this swap preserves much of that accessibility. The goal isn't just an impressive engine bay. It's a car you can enjoy, maintain, and keep improving without dreading the next time you pick up a wrench.
Developed, Tested, and Proven by Chase Bays.
This isn't a theoretical parts list or a collection of components we hope will work together. We purchased the engine, installed it in our own ZN6, developed the supporting systems, dyno tested it, and put it through real track use. The solutions in this package were born from the problems we encountered and the improvements we wanted for our own car. After two decades of developing motorsport products, our philosophy remains the same: simplify the complicated, eliminate the unnecessary, and make the finished product better in every way that matters. The EZ-powered ZN6 represents exactly that.
A better engine. A better driving experience. A smarter way to build.
Stage 1, Just the Essentials. PRE-ORDER PRICE: $7,999.99
• Link G5 Plug n' Play ECU 86/BRZ ZN6 w/ CAN Wideband + Internal Conversion for EZ Engine
• Link IAT
• Bosch Motorsport Oil Pressure / Temp Combo Upgrade Kit
• Radium Fuel Rails
• Chase Bays Tank to Rail 6AN Fuel Line Kit w/ 10-micron SS Filter, Compact FPR, and Flex Fuel Sensor + Mount
• Radium In Tank / Sending Unit
• Walbro 450lph E85 Fuel Pump F90000267
• Chase Bays Intake for Stock Intake Manifold (option for Front Facing Manifold & Intake)
• Chase Bays Swirl Pot Kit w/ Coolant Overflow
• Chase Bays Radiator Hose Kit - Upper Hard Line Y and Lower Silicone Hose
• Heater Hose / OE Oil Cooler Freeze - For header clearance and great for cooling.
• Chase Bays Clutch Line w/ Tilton Delay Valve
• Chase Bays Ultra Oil Cooler Kit w/ Optional Fans
• Chase Bays 6-2-1 Headers
• Chase Bays EZ to ZN6 Wiring Adapter
• Chase Bays EGR Block Offs
• Chase Bays Starter Mod
Don't forget the Stage 2 - Motorsport Ready Kit if you plan on drifting or hitting the track.
• Injector Dynamics ID1050 Injector Kit w/ Denso Adapters (needed for E85)
• Link Fuel Pressure Sensor Kit
• Chase Bays Oil Catch Can Kit for EZ30 / EZ36 ZN6
• Chase Bays 48mm Motorsport Radiator & Fan Shroud Kit w/ 12” Ultra High CFM Fans
• NAS Oil Pan Baffle
DO NOT drive on track without an Oil Pan Baffle installed, this chassis with this engine is toooo fast and will push all the oil up and away from the oil pickup, starving the engine of oil and ending its life!
For the complete swap development story, engine comparisons, technical details, installation process, and extensive photography, read our EZ30 / EZ36 H6-Powered 86 / BRZ / ZN6 Guide.
Note: Engine, transmission, vehicle, and other components not specifically listed in the package contents are not included. Some engine and vehicle preparation or modification is required. Refer to the complete package contents and installation guide for requirements and compatibility.