IE 2.5L 5 Cylinder Intake Manifold

IE 2.5L 5 Cylinder Intake Manifold


Item #: IEIMVB1


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inline five cylinder intake manifoldBring 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.



reliable performancepower results
manifold power gains

madeinusaindustry leading design

-Optimized bellmouth inlets create maximum power throughout the RPM range
-Thick wall cast construction for durability in N/A and turbo applications
-100% engineered, tested, and cast in U.S.A.

Included with manifold:
-Head flange hardware
-Head flange seals
-Throttle body screws
-Throttle body seal
-Fuel rail screws


Will this manifold fit my car?
-This manifold will fit all VW 2.5L engines from 2005-2012 with the electric power steering system. The later style engines (2012+) 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).

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.

I already have an aftermarket intake on my car, can I use it with this intake manifold?
-To accomodate our larger plenum, the throttle body was slightly moved, so most standard intake kits will not be a direct fit without modification. We offer an intake setup specifically for use with our manifold, part # IEIMVB2 (sold separately).

-"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!" - Josh T.



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

-This manifold has been designed to provide large power gains for naturally aspirated, as well as turbo applications.

increased power


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.



The Integrated Engineering 2.5L performance intake manifold has been carefully designed to fit 07K engines while retaining all of your factory components. 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 can easily be plumbed to your mass air flow sensor using our 2.5L manifold air intake kit (part number IEIMVB2, sold separately).

-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 control unit).

direct fit


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.

plenum volume


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.

runner design


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.

-The black powdercoat satin finish is available as an add-on option for an additional 75.00

surface finish


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.

true engineering