X-ineering Motorsports

Manual transmission cars only.

Built for the Subaru community

Your Subaru, Toyota or Scion rev matches itself now. Every downshift.

  • WRX
  • STI
  • BRZ
  • GR86
  • 86 / FR-S
  • Manual only

Brake, clutch in, and the throttle blips itself. No heel-and-toe, no pedal spacer, no upset chassis mid-corner. It runs inline at the pedal, so your ECU never knows the difference, tuned or not.

$620Manual cars · 100% Plug and Play · free US shippingOrder now

Hero video slot Set VIDEO.hero.id in the config block below

Real car, real downshifts. Sound on.

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Why this matters on a Subaru

Tuned for a lazy drive-by-wire

Subarus have a notoriously slow throttle response off the pedal signal. A generic blip setting feels soft on them, so ours don't use one.

01

Platform-specific settings

Subarus like a 50% Blip with a short duration around 200-300ms. Your module ships already programmed for your car. We did the testing so you don't have to.

02

Your tune stays your tune

Big turbo, protune, flex fuel, ported heads: none of it matters. The module only reproduces the same pedal voltages your foot would. It's compatible with any ECU, tuned or not, and the ECU can't tell the difference.

03

Best through the gears

It will handle a skip like 5th to 3rd, but the blip is a fixed target rather than a calculated one, so on a big jump it may not bring the revs up far enough. Downshift through the gears in a straight line, finish before you turn in, and you arrive at the corner in the right gear at the right rpm.

How the blip behaves

The higher you blip from, the more it revs.

The module sends your ECU the same throttle command on every downshift. How much rpm that command adds depends on where the engine is when the blip starts. Start higher in the rev range and the same blip gains more rpm.

  1. How this video tested it

    The driver brings the revs up with his foot, lifts off the throttle, then presses the brake and clutch, exactly like a real downshift. That triggers the blip, and the tach shows how the engine reacts.

  2. Same settings every time

    Every blip in this clip is 80% for 180 ms. The command never changes between runs. Only the rpm it starts from does.

  3. Starting rpm decides the gain

    Blip from lower rpm and the revs rise less. Blip from higher up and the identical command adds more. That is your engine and drive-by-wire responding the way they would to a heel-and-toe blip at the same rpm. The module is not changing anything.

Turn on audio

A heavily modified Lotus Cup car, parked in neutral. Revs up by foot, lift, brake and clutch, and the module blips at 80% for 180 ms every time. Watch the tach: the higher the starting rpm, the more rpm the blip adds.

The install

Inline at the pedal. Nothing cut.

The module goes between your accelerator pedal and the chassis harness, then picks up your existing brake and clutch signals. Mount it in the glovebox area, flip the included switch, and go drive.

Install video slot Set VIDEO.install.id in the config block below

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Get yours

  • Manual transmission only. It will not work on an automatic or a CVT.
  • $620 for the 100% Plug and Play kit. OEM connectors at the pedal, brake, and clutch
  • Free shipping anywhere in the US
  • 7-10 business days for build and testing

Pick this in the Vehicle menu

Tap Add to Bag, then choose your car from the list. Manual transmission cars only.

WRX sedan, 2006 and newerSubaru WRX Sedan (2006+)
WRX hatch, 2006-2014Subaru WRX Hatch (2006-2014)
STI sedan, 2004-2021Subaru STI Sedan (2004-2021)
STI hatch, 2004-2014Subaru STI Hatch (2004-2014)
BRZ, 2013 and newerSubaru BRZ (2013+)
GT86 / 86 / GR86, 2012 and newerToyota GT86/FT86/GR86 (2012+)
FR-S, 2013-2016Scion FR-S (2013-2016)
Crosstrek, 2018-2023Subaru Crosstrek (2018-2023)

Sedan and hatch are listed separately because the wiring differs. Not sure which one? Talk to us and we will tell you.

Pick the (PnP) option for your car in the Vehicle menu. The store shows the $520 base first. The Plug and Play harness adds $100.

Downshift Blip Module

Opens our store in a pop-up. You stay on this page.

Free shipping anywhere in the US.

The details

Straight answers

Does it work on an automatic or CVT?

No. The module is for manual transmission cars only. It triggers on brake, then the clutch pedal switch, and an automatic or CVT has no clutch pedal.

I'm tuned. Will this cause problems?

No. It's compatible with any ECU, tuned or not. The ECU will not know the difference. The module doesn't alter your OEM ECU, your calibration or your map. It only ever reproduces the same accelerator pedal sensor voltages your own foot would generate.

Same answer for forced induction changes and ECU reflashes, as long as the pedal wiring itself hasn't been modified. If your tune has its own auto-blip feature turned on, use one or the other, not both.

How does it know I'm downshifting?

Brake first, then clutch. When you press the brake, the module arms itself. If it then sees a clutch press while you're still braking, it blips. There's no time limit between the two: brake at corner entry, clutch whenever you're ready.

Press the clutch without braking and nothing happens, which is exactly what you want: your upshifts are completely untouched.

Why does it blip at a stop light?

Honest answer: the module has no gear, speed or RPM input. Brake-then-clutch is the only thing it reads. So if that sequence happens at a standstill or on a hill start, it will blip, because it has no way to know that wasn't a downshift.

Most owners flip it off for slow driving around town and back on when they're actually driving. That's what the included switch is for. It isn't designed for stop-and-go traffic.

Can I adjust the blip?

Yes, over USB. The adjustable parameters are:

  • Target throttle blip %: how deep the simulated press goes
  • Duration of blip (ms): how long it's held
  • Delay after trigger (ms): useful if your clutch switch is sensitive
  • Minimum time between blips (ms)

Do it from a Windows PC, or straight off your phone with any USB serial terminal app and an OTG cable, so no laptop is needed in the paddock. Most people never touch the defaults, because we develop them per platform when we do the install.

I run a pedal spacer or a throttle controller. Does that matter?

Throttle pedal spacer: no. A spacer only moves the pedal. The module plugs into the pedal's connector, so it doesn't care where the pedal sits. Many owners find they don't need the spacer once the blip happens on its own.

Throttle response controller (the boxes that plug in at the pedal): talk to us before ordering. Both devices sit on the same pedal connector, so the order they plug in matters, and we want to confirm your setup first.

Does it need a stock clutch?

No. Aftermarket clutches and shifters are fine. The module reads the clutch switch signal, not the clutch itself. Let us know what's in the car on the form and we'll flag anything worth knowing.

What do I actually get?

The module in a sealed enclosure with motor grade connectors (5.2″ × 2.8″ × 1.7″), the inline accelerator pedal harness for your chassis, the brake and clutch connections your generation takes, an on/off switch, and a USB programming cable.

Red LED for power, blue LED that lights for the duration of every blip so you can see it firing. Every unit is end-of-line tested before it leaves the bench.

Can I take it out later?

Yes. The design is passive and the install is reversible. Unplug the module, reconnect the OEM connectors, and the car is exactly as it was. With the module simply switched off it passes the pedal signals through untouched.

Ready when you are

Order it, or ask us first

Know your car is on the list? Order now and we start the build. Have a question about your car, your tune, or how it drives? Send it over and one of us will get back to you.

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