IE 2.5L 5 Cylinder Basic Power Kit
IE 2.5L 5 Cylinder Basic Power Kit IE 2.5L 5 Cylinder Basic Power Kit IE 2.5L 5 Cylinder Basic Power Kit IE 2.5L 5 Cylinder Basic Power Kit IE 2.5L 5 Cylinder Basic Power Kit IE 2.5L 5 Cylinder Basic Power Kit

Product Features

• Gain 48.2 horsepower over stock

• Maximizes power through the entire RPM range

• Optimized bellmouth inlets on each runner

• Rev limiter raised to 7200RPM

• IE performance software tuned for intake manifold

• Improved engine and throttle response 

• Cast aluminum for durability in N/A and turbo applications

• 100% engineered, tested, and cast in U.S.A.

IE 2.5L 5 Cylinder Basic Power Kit

Take your 2.5L 5 cylinder engine to the next level with the performance leading Integrated Engineering 2.5L 5 cylinder Basic Power Kit!   This 2.5L manifold kit includes the IE 2.5L 5 cylinder intake manifold and matching IE 2.5L stage 2 software.

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Product Summary


  • IE 2.5L performance intake manifold
  • IE Stage 2 intake manifold software
  • Manifold Installation hardware & gaskets






IE offers two options to deliver the software to your car. Read below to explore each option and choose the best that meets your needs. 

At Integrated Engineering, we want to make it as easy and convenient for you to flash your ECU with our performance software as possible. For that reason, we have a loaner tool program. Under this program, a case containing a flash tool, laptop, charger, and instructions is rented to you. All you need to complete your flash in your driveway is an internet connection (wifi or ethernet), our loaner tool kit, and a 10 amp charger. The process takes about half an hour to read, and then within 24 hours (during the week) you will be provided a tuned file which takes about 20 minutes to write to the ecu.

Loaner tool process overview:

    • Call customer service to place your order
    • A loaner kit will be shipped to you at the shipping speed of your choice
    • Set aside 1 hour of time to read the ECU and upload the stock file
    • Within 24 hours you will receive a tuned file (during the business week)
    • Take about 45 minutes of your time to recalibrate your ecu with the tuned file
    • When we receive the kit in good condition your deposit will be refunded

 Loaner Tool Rules:

    • Loaner tool available to USA or Canada only
    • The rental period is 3 business days from when you receive the package 
    • Each day after the 3 day period will be billed an additional $75 out of your deposit
    • You are responsible for correctly packaging the tool for return shipping to IE
    • Use the kit responsibly, keep it clean and dry, and please do not beat up our parts
    • IE is not responsible for ECU damage by errors caused by not following the directions
    • You are responsible for ensuring proper packaging and shipping for the return trip
When choosing our mail-in service to upgrade the software, we require your ECU to be sent in for bench flashing. This process will be completed in less than 24 hours and then shipped back out to you. Please contact us if you have any questions or concerns concerning the flashing procedure for your specific vehicle. 

Mail-in service process overview:
    • Call customer service to place your order
    • Package your ECU carefully and use the shipping speed of your choice (IE is not responsible for damgaed ECUs during shipping)
    • Once received, the ECU will be bench flashed within 24 hours and returned via customers shipping speed of choice



Performance Manifold

    Bring your 2.5L 5 cylinder VW engine to life with the Integrated Engineering cast intake manifold. The factory 2.5L 5 cylinder intake manifold is designed to channel air into the engine sufficiently well to meet the original horsepower targets, while being cost effective and easy to install. This compromise means that there is room for significant improvement. The IE performance manifold has been designed from the bottom up to put performance first. IE engineers exploit careful tuning of the intake manifold runner lengths and diameters to create a resonance effect which rams more air into the cylinders. The plenum and runner designs have been carefully optimized with computer software for maximum flow, allowing your engine to breathe easier and perform at its best.


Stage 2 software

    The IE Stage 2 performance flash for VW 2.5L engines is designed specifically to recalibrate the naturally aspirated 2.5L engine for use with the IE intake manifold. This software incorporates the same attention to detail as the perfomance intake manifold and enables IE to offer a complete performance package. With use of our in-house Dynapack DP42 dynamometer, we are able to do repeated runs to test each change that is made to the software and confirm performance and drivability. Although ECU recalibration is used to increase the power output from the engine, we also focus on increasing the all-around drivability. That is to not only provide more horsepower and torque, but make the driving experience more enjoyable by removing rev hang, increasing throttle response, and increasing the rev limiter. With this software, IE intake manifold, and an IE cold air intake kit (sold separately), power output is increased to 180FT/LBS and 218HP. With such a significant power increase, it makes the vehicle much more enjoyable to drive, with plenty of power available until redline.


Power increase

    We have carefully engineered and tested this power kit in house to get the best results possible in any condition. Due to the unique plenum and runner design of our manifold, your 2.5L 5 cylinder engine will be allowed to breathe the way that it naturally wants to. The maniofld, software, and air intake will allow for great gains over the factory setup, extending the powerband further into the RPM range. We have carefully engineered and tested this combination in house to get the best results possible in any condition. During testing performed on our in house engine dyno, the IE 2.5L intake manifold power kit produced excellent power gains through the mid-high range and very little low end power sacrifice with maximum gains of  48.2BHPover the factory manifold. 


Direct Fitment

    The Integrated Engineering 2.5L ultimate power kit has been carefully designed to fit 2.5L engines from 2005-2012 with the electric power steering system. Through extensive research and development, this intake manifold fits with no modifications to the engine bay, vacuum system, emissions systems, fuel system, or coolant system. With the plenum being larger than factory, the throttle body placement is moved a small amount, which is easily plumbed to your mass air flow sensor using the IE 2.5L manifold air intake kit (sold separately).


usa cast aluminum

    IE manifolds are cast from a special self aging, self hardening alloy with especially strict requirements for chemical composition. Top of the line Japanese machining centers machine all major surfaces of the parts in one setup, ensuring perfect fit, finish, and maximum value.


Increased plenum volume

    This plenum on this manifold has been generously sized and shaped to distribute airflow as evenly as possible to all 5 cylinders. The increased internal volume is a massive improvement over the factory piece and ensures a steady supply of air for the engine.


flow tuned runners

    By using a cast aluminum construction manifold, our engineers are able to properly size and shape the manifold runners and velocity stacks for optimal performance. This runner flow and resonance tuning is a huge contributor to the over-all performance of the intake manifold, and is not possible to acheive on hand welded manifolds generally available for this platform. Featuring aggressively sized runners that have been optimally tuned for large power increases throughout the mid-high RPM band. Our engineers employ CFD software to research and develop an optimized runner and bellmouth design, after many revisions to the design they have acheived the best runner shape, size, and velocity stack for the 2.5L application.


dyno tuned

    After completely reverse engineering the factory ECU, IE engineers spend countless hours on our in-house Dynapack DP42 dynamometer to perform repeated runs.  This process tests every single change made to the software and confirms performance and drivability in any situation.


Removed speed limiter
    The factory ECU speed limiter has been removed to make sure the increased power and torque can be used to its full potential on straightaways and drag strips.


Increased Rev Limit

    Our engineers have calibrated the ECU to extend the rev limiter to match the powerband of the IE intake manifold. This specific flash has raised the rev limiter increased to a 7200RPM, which is a perfect match for the new performance manifold powerband and the OEM engine internals.


throttle response

    To further increase the responsive feel of the car, IE engineers have carefully adjusted the throttle sensitivity. This offers a more connected feeling to your car with plenty of power available right beneath your foot.


surface finish

    To compliment the impressive performance of the manifold design, IE engineers have taken special care to make a visually appealing piece that not only compliments, but enhances the look of the 2.5L engine bay. The beautiful USA cast aluminum surface is available in raw or powdercoated satin black finish, the easy to clean powdercoat will ensure the manifold stays looking nice for a lifetime. The top of the manifold features a brushed metal recessed IE logo plate.


precision engineered


    Unlike other manifolds on the market that are simply welded and made to fit on the car, IE's performance intake manifolds receive special treatment from start to finish. Our engineering department looks at each specific application and designs an intake manifold with a properly sized runner and plenum. Then we begin a series of prototyping and testing countless revisions to the design to ensure optimum performance. Our engineers use Computational Fluid Dynamics (CFD) software to optimize the runner and velocity stack (bellmouth) system for proper resonance tuning and airflow. Unlike competitor manifolds, we use this process on each manifold to design the application-specific runner system to maximize airflow delivery to the cylinders.

    Once the manifold has been designed and flow has been optimized, the 3D models head over to our 3D printing studio to manufacture the initial prototype. The 3D printed manifold is fastened onto our in-house engine dynamometer and in-house chassis dynamometer for testing. To validate the plenum, runner, and bellmouth design, we test each revision in a controlled environment. Once all testing data has been collected, it is analyzed and used to determine if changes are necessary before going to production.




IE manifold dyno results


This manifold is a direct fit for all VW 2.5L 07K engines from 2005-2012 with the electric power steering system. Many later style engines (2012+) use a hydraulic power steering pump, which sits right below the factory intake manifold and will not allow this manifold to be installed.  Please verify if your vehicle utilizes a electric or hydraulic power steering system before ordering.

Although this  manifold will physically fit on automatic transmission equipped vehicles, the power gains are seen in the high RPM range, which is not reachable on automatic TCU (transmission controll unit)


This is a complete kit for customers who wish to design or modify their own air intake system to work with our intake manifold. Everything you need to install besides an air intake is included wiht this kit. If you would like a complete installation solution including an air intake system, see the 2.5L Ultimate Power Kit IE Part Number: IEIMVB3


Will this manifold fit my car?

This manifold will fit all VW 2.5L engines from 2005-2013 with the electric power steering system. Some later style engines use a hydraulic power steering pump, which sits right below the factory intake manifold. We recommend installing these on manual transmission cars only, as the gains are in the higher RPM range, which cannot be reached on automatic ECUs (transmission controller has internal rev limiter). ECU flash is available for 2005-20014 ECUs.

Can I install this manifold on an automatic transmission car?

The intake manifold will physically fit on automatic cars, but the power gains will not be  seen as they would with manual transmission cars. The power gains are seen in the high RPM range, which is not reachable on automatic cars, as they have rev limiters in the transmission controllers that cannot be removed.

Will my factory fuel rail work?

Although we recommend using our billet fuel rail which compliments the beautiful cast manifold nicely, your factory fuel rail will also bolt up to our intake manifold using the included hardware.

What throttle body can I use with the IE cast intake manifold?

Our intake manifold is designed for use with the factory throttle body, which is a direct fit. We include the necessary hardware and seal for the throttle body with each intake manifold.

What kind of gains can I expect from the IE intake manifold on my stock 2.5L engine?

Along with our software and intake kit, we have shown gains of 48.2bhp over the stock power levels on manual transmission cars revving to 7200rpm.

Can I use this manifold with my turbo setup, or will it only work for naturally aspirated applications?

Yes! We have designed our manifold to offer great gains on any setup, whether naturally aspirated or turbo.

Will this manifold be a direct replacement for my factory intake manifold?

Yes! With our plenum being larger than the factory plenum, the throttle body location is slightly different. It will require use of our IEIMVB2 intake kit, making the manifold install simple.

Share your thoughts on this product Write a review
Read Full Review
Amazing kit!
I’ve had Integrated Engineering’s 2.5 Power Kit installed for about a month now and I have been amazed by it in every way. It’s not just more power; it’s where the power is made. It is much more usable, meaning the torque is more linear and doesn’t come in bulk lower in the revs. Now there is actual power past 5k which there was basically none before. Also the growl the exhaust produces makes it sound exotic. Most of my friends are Honda guys, but they are in love with the way this car sounds. On top of a power increase and the sound, I’ve noticed a big bump in mpg. I estimate I’m getting between 32-35 mpg when I’m not getting on it which is awesome for any car, let alone a 2.5 liter. Even when I am getting on it the gas mileage is better. Overall I am extremely happy with the power kit and will continue to buy and recommend Integrated Engineering’s products to everyone I know!
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