Port Injection Kit - Audi 3.0T Gen 1 - E85 MPI System

BACK IN STOCK!! Orders will ship first week of June!

Complete Port Injection Kit for Audi 3.0T Gen 1 - Unlock E85 Power and Eliminate Carbon Buildup

Add port injection to your Audi 3.0T supercharged engine to solve the direct injection carbon buildup problem while unlocking massive power gains on E85. This complete multi-port injection (MPI) system includes precision CNC-machined components designed to fit under the supercharger on B8, B8.5 S4, S5, Q5, SQ5, and C6/C7 A6, A7, A8, Q7 models. Proven to deliver 560+ horsepower on E85 with a stock supercharger.

Watch the Port Injection System in Action:

Why Port Injection for 3.0T Engines?

The Audi 3.0T TFSI uses direct injection only, which causes carbon buildup on intake valves over time. Adding port injection sprays fuel directly onto the valves, keeping them clean while providing additional fueling capacity for high-power applications. This system is essential for:

• E85 fuel compatibility (direct injection alone can't flow enough)
• Preventing carbon buildup on intake valves
• Supporting 550+ horsepower builds
• Maximizing performance with ported blowers and upgraded pulleys
• Eliminating the need for regular walnut blasting services

Proven Power Gains:

• 509 HP / 500 lb-ft - IE E40 tune (baseline)
• 560 HP / 550 lb-ft - E85 with MPI (stock blower, stock throttle body) - +51 HP gain
• 573 HP / 549 lb-ft - E85 with MPI + ported blower + 82mm throttle body - +64 HP gain

Drag Strip Results: 7.25 @ 98 MPH in the 1/8 mile (full-weight manual S4)

Port Injection Kit Options

Option 1 – $1,999.99
Includes all CNC-machined components:

• Driver and passenger side injection blocks
• Fuel rails
• Tumbler valve bypasses
• AN6 fittings for plumbing into existing fuel lines

Option 2 – $2,299.99
Includes everything in Option 1, plus:

• Pre-bent aluminum fuel hardlines designed to fit under the 3.0T supercharger
• Integrated fuel tee connection at the high-pressure fuel pump

Option 3 – $2,649.99
Includes everything in Option 2, plus:

• 550cc flow-matched injectors
  Balanced for both high power capability and smooth drivability
  (750cc injectors available upon request)

Option 4 – $3,249.99
Includes everything in Option 3, plus:

• Split Second controller preloaded with a base map
  (Note: Not yet compatible with 750cc injectors)

Option 5 – Price TBD
We're currently developing an off-the-shelf Jackal tune calibrated for E85 use with this kit. More details coming soon.

Installation Requirements:

• Professional installation strongly recommended
• Requires tuning for proper operation (E85 tune recommended)
• Compatible with stock or upgraded fuel pumps (upgraded recommended for high power)
• Fits under factory supercharger - no clearance issues

Compatible Engine Codes: CAKA, CCAA, CCBA, CCDA, CGWA, CGWB, CGXC, CRED, CREC, CTUA, CTUB

Test Data

This is the progression of events for our testing.

Mods on the car are: 203/57 PR, Stock throttle body, stock blower, No WMI/chiller, Merc racing HX with divorced system, ECS intake, headers paired with stock exhaust.

On our initial dyno test we used E40 on the Integrated Engineering E40 tune. This was to create a baseline on the dyno as the IE E40 was the standard back in 2020.

We made 509hp at around 6,200 rpm and over 500 ft-lbs of torque around 3,500 rpm. This was with a DA of –500ft.

Then, on the same day, we moved to the HP Tuners E85 tune.

Mods on the car are: 203/57 PR, Stock throttle body, stock blower, No WMI/chiller, Merc racing HX with divorced system, ECS intake, headers paired with stock exhaust.

We made 560hp at around 6,100 rpm and over 550 ft-lbs of torque around 4,400 rpm. This was with a DA of +300ft.

Then we went back another day with a ported blower and 82mm throttle body.

Mods on the car are: 203/57 PR, 82mm throttle body, ported blower, No WMI/chiller, Merc racing HX with divorced system, ECS intake, headers paired with stock exhaust.

We made 573hp at around 6,100 rpm and 549 ft-lbs of torque around 4,200 rpm. This was with a DA of +1011ft.

Then we went to the drag strip to get some race data. The track was my local 1/8 mile in Mooresville NC.

Car specs are:

2010 S4 6 speed, Full weight, IE Beta E85, MPI, ECS intake, JXB front diff. 3.56 pulley ratio, 5R clutch, Autotech HPFP, Mike Bunton Ported Blower, IABED 82mm Throttle body, Mertop headers

4/8/2021

Tires: 255 35 Indy 500's on 19 inch wheels.
Tune: IE Dual Pulley State 2+ E40 tune.
Rear Suspension: Stock.
DA: 2,100 ft
Fastest ET: 7.64
60ft: 1.66
MPH: 93.98

9/9/2021

Tires: 255 35 Indy 500's on 19 inch wheels.
Tune: IE Dual Pulley State 2+ MPI E85 beta tune.
Rear Suspension: Stock.
DA: 2,600 ft
Fastest ET: 7.37
60ft: 1.66
MPH: 97.09

11/7/2021

Tires: 28X10-18 Bias Ply D06 Hoosiers on OEM 18 inch wheels.
Tune: IE Dual Pulley State 2+ MPI E85 beta tune.
Rear Suspension: Upgraded Ksport springs.
DA: 1,500 ft
Fastest ET: 7.25/7.28
60ft: 1.66/1.62
MPH: 98.64/98.30

Summary:

E85 tune makes 51hp and 25ft-lbs more than IE E40 tune.
E85 tune paired with ported blower and throttle body makes 64hp and 24ft-lbs more than IE E40 tune.

Compatibility

Audi 3.0T Gen 1 Supercharged TFSI Engines