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7 HR FC V2 87-92 Mazda RX-7 GT40R/GT4088R Turbo Kit FC3S

Starting at: $3,979.00

Please Choose:

Polished Comp Housing Upgrade?


Select Downpipe

Extra Large 4 Inch Downpipe

Large 3 Inch Downpipe

Select Wastegate Configuration

Single Tial 44mm Wastegate

Twin Tial 38mm Wastegates

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  • Model: HRV2-GT4088R
  • Manufactured by: Himni Racing

The Himni Racing V2 GT4088R (aka GT40R) turbo kit produces 440-462 WHP on pump gas at 14-15 psi with conservative tuning. Much more HP can be made with an increase in boost. Dual Ball bearing, super fast spool.

Check Out the installed pictures of the HR FC V2 Turbo kits HERE

Himni Racing V2 GT4088R (aka GT40R) dual ball bearing direct bolt on turbo kit for the 87-92 Mazda RX-7 FC3S Turbo II. (Fits 87-91 13BT 4 port, 93-95 13B-REW & 13B-RE Cosmo engines in FC body) Arguably the very best production aftermarket GT4088R turbo kit available for the FC RX-7 to date. Packed with loads of features & configuration options with quality & craftsmanship being second to none. Peak performance, long term reliability & precise fitment are guaranteed. Dyno, street & track tested with countless hours of R&D & over 12 years of rotary & turbo experience. Utilizing only the best materials & parts, built in house by HR master metal fabricators. The HR FC V2 line of turbo kits incorporates many 1st of it's kind features & with an emphasis on quality, reliability, ease of install, maximum perforce output & heat reduction. The criteria being that they are the very best kit on the market for the FC3S RX-7, in all aspects. A very flexible design & layout allows each kit to be easily upgraded to a different/larger turbo if your needs change over time. Each kit uses only genuine Garrett Turbos & Tial wastegates.

The exhaust manifold, downpipe & all metal parts come with a lifetime warranty for as long as you own it. If your manifold or downpipe ever cracks, breaks, warps, etc, we'll repair of replace it for FREE, guaranteed !

Direct bolt on, each kit includes everything needed to install it & comes with:
- Garrett GT4088R (GT40R) dual ball bearing ball bearing Turbocharger (Ported Housing standard & polished housing available)
- TiAL Wastegate(s) (Your pick of Twin 38mm or single 44mm configuration, select your color)
- Himni Racing V2 SS Divided Tubular T4 Manifold w/ Heat shield & optional EGT bungs
- Himni Racing V2 SS Mandrel V-band Downpipe ( Your pick of 3.00" or BIG 4.00" diameter)
- Himni Racing SS Water Thermostat Neck with molded hose
- Himni Racing 4" Mandrel Aluminum air intake
- Garrett SS Turbine housing heat shield
- All V-band, T-bolt & standard clamps
- All CNC & hand made flanges, adapters, lines, hoses, fittings, gaskets, nuts, bolts, studs & hardware.
- FREE turbo & rotor windshield banner!! (red, blue, white, silver, your pick)

Turbo Info:
- Authentic Garrett GT4088R (GT40R) dual ball bearing turbo w/ T4 divided (Twin Scroll) 3" V-band downpipe outlet. (1.06 A/R by default) Other A/R Sizes available by request, no extra cost.
- Compressor Housing (Cold side): 4.00" air inlet & 2.50" outlet.
- Ported Anti-surge housing standard: Yes
- Polished Housing option available: Yes
- Ceramic Coated Turbine Housing Available: Yes
- Dual SS Ball Bearing
- Oil & Water Cooled & comes with manufactures warranty

HR V2 Turbo Exhaust Manifold Info:
At the hart of the system, the HR V2 Top Mount manifold is Himni Racing's exclusive design. The entire manifold is constructed of solid 304 Stainless Steel, CAD designed & built from the ground up, each one is hand made in house by Himni Racing. Longer runner & large bore tube design maximizes Mid range & Top end HP. A fully divided, (in twin wastegate configuration) equal length & tuned, mandrel bent tubular manifold that optimizes turbo response & efficacy. Fully TIG welded, reinforced bracing, smooth flow hand ported with integrated heat shield that lowers air intake tempers for increased detonation resistance & more HP. 1/2" thick flanges that will not warp. Top mount turbo placement keeps the turbos heat off the intake manifold thus lowering intake temps even more. Available with black ceramic coated upgrade option. Includes mounting studs & premium copper clad nuts as seen in the pictures.
Lifetime warranty for as long as you own it. It it ever breaks, bends, cracks, warps, etc, we will repair or replace it for FREE, guaranteed!

HR V2 SS V-band downpipe:
2 Configurations available. #1 3 Inch diameter OR #2 Extra Large 4 Inch diameter, your choice.
Each Himni Racing V2 downpipe is hand crafted of solid of 304 stainless steel & features V-band mounting flanges, smooth mandrel bent tubing with the very minimal degree of bends for maximum flow. Very strong but lightweight.
-The #1 3" diameter downpipe option flows extremely well & is suitable for most applications. A very good choice that suits the engine & turbo system extremely well.
- The #2 extra large 4" diameter downpipe option is again for the guys who demand the best & want to go all out! Huge 4 inches of flow extracts every last HP from the system with an average of 8-10 HP increase, give or take depending on tune. The increased flow & decreased back pressure allows the HR V2 exhaust manifold to operate at it's peak for the ultimate in turbo response.
Lifetime warranty for as long as you own it. It it ever breaks, bends, cracks, warps, etc, we will repair or replace it for FREE, guaranteed!!
Select downpipe configuration from menu.

Wastegate Info:
2 Configuration options available. #1 Twin Tial 38mm external wastegates OR #2 single Tial 44mm external wastegate, your choice.
- The 44mm configuration works great for most applications & is more cost effective. Boost control is solid & reliable. A beautiful layout that's very effective. An excellent choice.
- The twin 38mm configuration is for the guys who want to go all out! This design keeps the manifold "truly divided" throughout & provides a total of 76mm of boost control. Provides peak boost response for the ultimate in less lag.
Select wastegate configuration & color from menu.

HR V2 Thermostat Water Neck info:
Now made of aluminum::: Yet another very cool feature of the Himni Racing V2 line of turbo kits. Made of solid aluminum with smooth flow & polished finish. Integrated feed port allows the stock water hole in the lower intake manifold to be blocked off. (rotor housing water plug included) This keeps the hot water out of the intake manifold & reduces air intake temps. The layout moves the radiator water path closer to the driver side, keeping the heat away from the turbo's air intake & intercooler tubing. Replaces the factory plastic crack prone water neck on the 89-92 (S5) models. And replaces the often heavy pitted aluminum water neck on the 86-88 (S4) models. Fiber reinforced molded rubber hose & clamps included.
Select car / engine year from menu.

HR V2 Air Intake Info:
The HR V2 air intake is made of 6061 T6 lightweight aluminum. Large 4" diameter mandrel bent intake w/ high-flow air filter, clamps & reinforced silicone coupler. Your pick of coupler color: red, blue or black.

How difficult is the HR V2 kits to install?
Installation is relatively simple, very straight forward & is installed in about 2-3 hours accounting for removal of the stock parts. All the lines arrive preassembled with their fittings, adapters, etc. already attached. Mounting bolts, nuts & studs are either already installed or slid through their component & tied into their location on the part. No piles of hardware that require detective work. Only basic hand tools are needed for installation.
What are the warranty details?
The exhaust manifold & downpipe are covered for as long as you own it. In the unlikely event that they ever crack or brake we'll repair or replace it for free. Just send us an email & we'll take care of it. The turbo comes with Garrett's 1 year warranty, the wastegate(s) comes with Tial's warranty.
Should I use exhaust wrap?
On the manifold, it's not recommended. Ceramic coating is more effective at reducing heat & is less brutal on the part. On the downpipe, wrap away if you like, though again, ceramic coat is better.
Each kit comes with lifetime customer service & tech support for as long as you own it!
Is the HR V2 kits available with the wastegate plumbed back to the downpipe, rather then open wastegate?
Yes. The kit comes with SS tubes that rout the wastegate dump under the car by default. This is the layout that's preferred by most. But it's also available with the wastegated exhaust rerouted back to the downpipe for no extra cost. Just leave a note during checkout requesting it to be rerouted to the D/P & we'll take care of it.
Can the HR V2 kit be used with the stock top mount intercooler?
Yes, but it's not the best way to go. A air to air FMIC, water to air or even chemical intercooling will allow you to achieve peak performance from the V2 kit.
Do I need to upgrade my fueling?
The stock Turbo II fuel system will only supply enough fuel for about 6 psi, depending on the HR V2 kit you select. Fuel upgrades are recommended for boost levels above 6 psi. The V2 kits flow A LOT more air then the OEM turbo.
What fuel upgrades should I do for boost pressures above 6 psi?
This is a in depth question with lots of different options ranging from mild to all out, depending on how much boost you want to run & what type of budget you have. Very generally speaking, common upgrades include larger fuel injectors & fuel pump, adjustable fuel pressure regulator, piggy back fuel controller or even a stand alone EMS. If you are unsure what's best for your needs, just send us an email at himniracing@digital.net
Are the HR V2 kits used with the stock air control valve (ACV) & air pump?
No. The OE air control valve found on the lower intake manifold needs to be removed & blocked off. The stock air pump & it's belt are also removed. If you need a ACV block off plate, we will include one with your V2 turbo kit order upon request.

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