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Navigate:  StoreFront / Forced Induction (Turbo, Supercharge, Accessories) / Turbo Kits / HorsepowerFreaks - E46 M3 Turbo Kits / HPF - E46 M3, Stage 2 Turbo Kit
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HPF - E46 M3, Stage 2 Turbo Kit

HPF-TCS2-E46M3 $18,495.00
$15,495.95
Engine Type: S54
Chassis Type: E46 M3
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HPF - E46 M3, Stage 2 Turbo Kit View Enlarged Image

Stage 1 already transforms the E46 M3 into a guided missile, HPF Stage 2 adds more powerful ECU tuning, boost and methanol injection for even more lunacy whenever, wherever!
New Lower prices!


Touted as the first fully successful out of the box turbo kit for this platform, these HorsepowerFreaks turbo kits not only make outrageous power, but can be installed by any qualified auto tech on a standard S54 engine. Everything is plug and play / bolt on and no permanent modifications are made to the car. Full color, easy to follow instructions are included.
Taking power to the next level, HPF have added Methanol injection to the equation for race gas performance...without race gas! At the turn of a key, Methanol injection and the corresponding fuel and ignition maps are loaded into the ECU for more power on demand. Maybe most incredible is that with all this performance, your car wills till be driveable and comfortable, day in and day out with great usability and response.
Be warned, once you have felt this kind of power and speed, you will never be the same.

Stage 2 HPF Turbo kit
From Horsepower Freaks:
Each HPF stage 2 system comes with all of the amazing stage 1 components but also allows the use of methanol or denatured alcohol. This creates four pre-configured power settings. A 'low boost' pump gas map (512bhp - 420rwhp) is the basic setting which is designed to run on 91 octane fuel or better. This will out-perform nearly every other production automobile on the planet at 'low boost'. Add methanol to our stage 2 methanol tank (included with this kit), and with 91 octane pump gas in your gas tank the power will automatically increase to 670bhp (550rwhp). If that isn`t enough, switch to 110 octane race fuel in your gas tank and flip the 'keyed' race fuel switch that comes with our kits. Now you re laying down a heart pounding 730hp (600rwhp). That's enough power to go sideways at the top of 3rd gear (with stock tires)!! Want even more power (how about 760bhp 625rwhp) just leave methanol in the stage 2 methanol tank, and leave race fuel in the gas tank. That s it! Now your M3 has enough power to propel you to 160mph faster than most street bikes. Given weather conditions and variations from car to car, these results may vary up to +/- 25rwhp on any given day. Stage 2 is so popular with performance enthusiasts because the additional "methanol" capabilities our kit provides increases the benefits of forced induction drastically especially when 91 octane pump gas is used. 91 octane pump gas begins to pre-ignite in the E46 M3 engine when boost pressures exceed 6 psi which is why the stage 1 turbo system is limited to 6psi on pump gas. With stage 2, when the computer detects methanol in the methanol tank, it injects it into the intake manifold which not only increases the effective octane rating of the combined fuel, but also drops the intake air temperatures by as much as 50 degrees. This allows the same engine to run significantly more boost with the same 91 octane pump gas thereby increasing the power generated on pump gas by over 100rwhp.

Each turbo kit comes with complete installation instructions (with full color pictures), and is entirely bolt on with no cutting, wiring, welding or tuning required. This includes every component you will need down to the last nut, bolt and washer and it all fits!! Feel free to click on any of the images below to read about the quality we've incorporated into each and every component.

-Available for LHD and RHD E46 M3's
-Compatible with 6 speed and SMG
-Polished or black intake manifold


Each kit includes a wide variety of go-fast Horsepower Freaks components including the following:

  • Plug-n-play stand alone engine management system
  • Six Drop in 750cc "high impedance" injectors (no fuel rail mods required)
  • Auxiliary fuel pump w/filter that turns on at 3psi w/electronic connector
  • Ceramic coated, CNC machined 1018 mild steel turbo manifold
  • Precision T67 turbo w/.81 AR
  • Tial 44mm V-band wastegate w/reroute Stainless steel downpipe
  • Powdercoated Intake manifold designed for both dry and wet flow
  • Intake manifold couplers w/clamps
  • Twin HKS blow off valves Polished or Anodized 4" thick, 24" wide core bar-n-plate intercooler
  • Powdercoated aluminum intercooler piping
  • Powdercoated aluminum intake piping
  • 5 ply silicon couplers T-bolt intercooler clamps
  • KN intake filter with clamp
  • Steering column mounted dual pod
  • AEM UEGO wide-band gauge
  • AEM boost gauge
  • Race fuel switch w/LED
  • Knock siren
  • Six Denso Irridium Spark plugs
  • Harnesses for fuel pump and oil pump assemblies
  • Harnesses for gauges, race fuel switch, LED and knock siren
  • Oil pump with mounting bracket and electronic connector
  • One piece oil pump feed and return lines
  • One piece turbo oil feed and one piece head to pan oil line
  • Multiple vacuum lines w/quick disconnects
  • AEM 3.5bar map sensor
  • Boost control solenoid
  • Intake air temp sensor Engine bay brackets
  • Gaskets, bolts, studs, nuts, washers
  • Fittings and block off plates
  • HPF badging

    Stage 2 adds:
    Methanol components come pre-mounted to a bracket that installs directly underneath the front bumper and wraps around the fog lights, our intercooler piping and clears the front bumper support. These components are simply plugged into a harness that also plugs into the HPF750 engine management system. Since the factory horns were in the way of our bracket, we created a mounting location for each horn and etched the picture of the horn directly on our polished bracket so they have a perfect location and the horn wires require no extension. Our methanol kit utilizes an FJO modified methanol pump and an FJO methanol fogger. This methanol fogger is unique in that it creates an extremely dense fog by pressurizing the methanol against a wall. This almost instantly vaporizes the methanol providing an extremely cool "high octane" intake charge. Our methanol system is automatic. No flipping switches or uploading maps is required. When methanol is detected, our system automatically allows the turbo to provide more boost, increases timing to benefit from the higher effective octane, and drops fuel to the injectors to compensate for the methanol fuel creating a very safe A:F ratio. Everything is plug-n-play. The methanol system plugs directly into our EMS without any cutting or wiring, and the hard parts bolt to factory mounting points.
  • FJO modified methanol pump
  • FJO methanol fogger
  • Plug and play wiring harness to ECU
  • Fully pre-assembled methanol kit and bracketry

Here is a video of the HPF turbo kit in action:


HPF Stage 2 M3 Prepared by VAC (Sound is loud, turn down speakers):

We are the main HPF authorized dealers and installers for Main, Vermont, New Hampshire, New York, New Jersey, Massachusetts, Pennsylvania, Delaware, Ohio, Indiana, Virginia, Kentucky, Missouri, Illinois, Michigan, and more!
We have sold more HPF kits globally than any other retailer Please call us with any questions, and for feedback on these products.



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Price Details
Base Price: $18,495.00 $15,495.95
We have been building the worlds fastest, most reliable turbo BMW engines for years. Call or email us to discus your project.
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