Shark Injector E46 M3 Shark Injector Performance Software TMS3967

E46 M3 Shark Injector Performance Software

Benefits of Shark Injector Performance Software:

  • Horsepower and torque gains
  • Faster and smoother throttle response
  • Top speed limiter removed
  • Optional convenience features
  • Extremely easy to install/uninstall
  • Reversible and reusable

Performance software is a must-have upgrade on your E46 M3 and you won't find an easier and better software solution than the Shark Injector. Developed by BMW tuning expert Jim Conforti, this device plugs into the car's diagnostic port and flashes new performance files into your car's engine computer (ECU). There's no removal of the ECU and shipping, no cables, no laptop required - only a battery charger! Installation takes just a few minutes and your engine will perform like never before!

The M3 performance software was developed on the dyno to create maximum power and torque using premium 91+ octane fuel and revising the torque limiters in the ECU. The software makes changes to the ECU's maps and algorithms for fuel injection, ignition timing, VANOS and camshaft movement, and transitional fueling. We modify the maps for part throttle and full throttle so you get better response and more torque at all RPM. The rev limit is raised to 8,100 RPM rev limit and the top speed limiter is removed. By fine tuning these maps we've been able to improve the S54 engine beyond what BMW did by making more power and torque and a smoother-running engine.

The Shark Injector plugs into the diagnostic port inside the E46 cabin. With the battery charger supplying power, press the Upgrade button and within minutes the ECU is reflashed with the new performance tune. No other software product on the market comes close to how easy it is to install. You can use the Restore button to re-install the stock BMW software at any time. Detailed instructions are included. Other tuners require you to remove the ECU and ship it to them or use a laptop to read and write a new file. The Shark Injector is ready to install right out of the box! A planned future upgrade will allow you to use the USB port to load different performance files.

Looking to maximize your power gains? Add a Turner IAT Relocation to combat power-robbing heat soak - the only true plug-and-play solution available. Heat soak is a real plague on consistent power for a stock or tuned vehicle. Click here to read more about our IAT relocation kit.




E46 M3 Dyno
Power and Torque Gains
Stock: 278.2 whp / 235.3 wtrq
Sharked: 284.2 whp / 236.9 wtrq
Peak Gain 6.0 rear wheel HP and 1.6 rear wheel Torque
(note: the max gain (biggest improvement) is 9 rear wheel HP between 7000 and 8000 rpm)
Shark Injector Installation Instructions(click to expand)Shark Injector installation instructions
A capable battery charger is required for the installation. The charger provides backup power supply to the regular car battery during installation. It must be capable of holding a continuous 10amp charge for the full installation (15-20 minutes).
The minimum octane fuel for this software is either 91 or 93.
Shark Injector FAQ(click to expand)Shark Injector FAQ
This item fits the following BMWs:
2001-2006 E46 BMW M3 (US models only)
 

T#: 338931 | Part#: TMS3967
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Checking Vehicle Fitment...

Please ensure your correct model is selected

Does NOT fit your Change Vehicle

Fits your Change Vehicle

Change Vehicle

Starting at $314.10
314.10
SALE: $314.10 (10% OFF)
WAS: $349.00 on 05-03-2026

This product was last offered at the strikethrough price on
05-03-2026

This product is backed by our
Lifetime Replacement Program! Read more here
Free Shipping
Availability:
On Order
Est. Ship Date:
on Aug 11, 2026
Qty

Select Options

No thank you, I will select a 93 octane tune.
91 octane, 8100rpm rev limit
Shark Injector - Corporate Logo
T#: 387548
|
Part#: N4MSS54
Availability:
On Order
Est. Ship Date:
on Aug 11, 2026
Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
Sale - Save 10%
$349.00

This product was last offered at the strikethrough price on
05-03-2026

$314.10
Qty: 1
91 octane, 8100rpm rev limit, DSC button controls Sport mode
Shark Injector - Corporate Logo
T#: 387547
|
Part#: N4S54DSC
Availability:
On Order
Est. Ship Date:
on Aug 11, 2026
Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
Sale - Save 20%
$349.00

This product was last offered at the strikethrough price on
05-03-2026

$279.20
Qty: 1
91 octane, stock 8000rpm rev limit
Shark Injector - Corporate Logo
T#: 387573
|
Part#: N4S54STL
Availability:
On Order
Est. Ship Date:
on Aug 11, 2026
Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
Sale - Save 20%
$349.00

This product was last offered at the strikethrough price on
05-03-2026

$279.20
Qty: 1
No thank you, I will select a 91 octane tune.
93 octane, 8100rpm rev limit, DSC button controls Sport mode
Shark Injector - Corporate Logo
T#: 387591
|
Part#: N4S54DSO
Availability:
On Order
Est. Ship Date:
on Aug 11, 2026
Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
Sale - Save 20%
$349.00

This product was last offered at the strikethrough price on
05-03-2026

$279.20
Qty: 1
93 octane, 8100rpm rev limit
Shark Injector - Corporate Logo
T#: 387557
|
Part#: N4S54OCT
Availability:
On Order
Est. Ship Date:
on Aug 11, 2026
Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
Sale - Save 10%
$349.00

This product was last offered at the strikethrough price on
05-03-2026

$314.10
Qty: 1
93 octane, stock 8000rpm rev limit
Shark Injector - Corporate Logo
T#: 387574
|
Part#: N4S54STO
Availability:
On Order
Est. Ship Date:
on Aug 11, 2026
Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
Sale - Save 20%
$349.00

This product was last offered at the strikethrough price on
05-03-2026

$279.20
Qty: 1
Do not include a battery charger, I will supply my own.
Carlyle By NAPA 6/12V 2/10/20A Intelligent Battery Charger / Maintainer / Power Supply
NAPA - Corporate Logo
T#: 18634041
|
Part#: CBC612V20A
Availability:
Available from Supplier
Est. Ship Date:
Ships in 3 Business Days
No Lifetime Replacement
$197.99
Qty: 1
Yes, please!
Turner Motorsport - Corporate Logo
T#: 394423
|
Part#: IATPROMOKT
Availability:
In Stock
Est. Ship Date:
Today
Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
Sale - Save 35%
$176.99

This product was last offered at the strikethrough price on
05-03-2026

$115.04
Qty: 1
No, thank you, heat soak hasn't bothered me.
E46 M3 Shark Injector Performance Software
$314.10

Previous Revisions
  • TMS3967