Integrated Engineering Intake Manifold

[jospin]

I am in the market for an aftermarket intake manifold. I have been looking at the Integrated Engineering one mainly because I have other IE parts. I am stage 2 K03 turbo. I know there’s not huge power gains but was wondering about the drivability and if there is a notable difference. I was hoping that it would also solve the choppy k03 turbo whistle too but not sure. Any input would be appreciated.

[MongoMcG]

The intake manifold is just one piece of the system that moves air through your engine. By itself, an aftermarket intake doesn't do much. The benefits are realized when other bolt-ons are installed, such as a larger turbo and exhaust, and a tune is written to take advantage of more available air. More air=more fuel=more power.

Installing the IE IM is not super easy: there are no install instructions; the fuel rail needs grinding for fitment; the heavy solenoid for the purge valve system ends up flopping around unless you fabricate a bracket; the conduit for the wiring harness on the fuel rail requires modification; and the hard fuel line between the HPFP and the fuel rail will need some bending to make it work. The IE installation package for the B8 is silly expensive, especially with the crazy shipping charges.

The intake flapper system is eliminated, so the car throws error codes P2008 and P2014 - both for flapper position sensor errors - which would need to be tuned out.

It's a major undertaking that we just finished yesterday, along with a K04X hybrid turbo and a bunch of other bolt-ons. Worth it? Cannot yet answer that. It's not tuned so only a half mile driven, during which an over boost error put the car in limp mode. We'll wait for the first custom tune file before we put the car back on the road.

If you do the intake manifold swap it's a perfect time to do some walnut shell blasting on the intake ports, give the driver side of the engine bay a good scrubbing, and inspect the water pump and after-run coolant pump for signs of failure.

[Chillaxin]

And you will lose low load, low RPM efficiency. The flappers induce higher air velocity at low RPM (they lower the air flow cross-sectional area) to induce a higher air tumble in the cylinder which is quite important for proper mixing with GDI.

[jospin]

The intake manifold is just one piece of the system that moves air through your engine. By itself, an aftermarket intake doesn't do much. The benefits are realized when other bolt-ons are installed, such as a larger turbo and exhaust, and a tune is written to take advantage of more available air. More air=more fuel=more power.

Installing the IE IM is not super easy: there are no install instructions; the fuel rail needs grinding for fitment; the heavy solenoid for the purge valve system ends up flopping around unless you fabricate a bracket; the conduit for the wiring harness on the fuel rail requires modification; and the hard fuel line between the HPFP and the fuel rail will need some bending to make it work. The IE installation package for the B8 is silly expensive, especially with the crazy shipping charges.

The intake flapper system is eliminated, so the car throws error codes P2008 and P2014 - both for flapper position sensor errors - which would need to be tuned out.

It's a major undertaking that we just finished yesterday, along with a K04X hybrid turbo and a bunch of other bolt-ons. Worth it? Cannot yet answer that. It's not tuned so only a half mile driven, during which an over boost error put the car in limp mode. We'll wait for the first custom tune file before we put the car back on the road.

If you do the intake manifold swap it's a perfect time to do some walnut shell blasting on the intake ports, give the driver side of the engine bay a good scrubbing, and inspect the water pump and after-run coolant pump for signs of failure.

Okay thanks for all the info. I have all the other necessary mods (intake, hfc, tune, intercooler, etc.) and so this would just be the last piece of the puzzle. IE now makes a stage 2 IM tune so im not worried about tunes. Does IE’s install kit make this an easier install or is there still some fabrication to be done? Im not looking to fab anything lol.

As far as the valves, I just recently replaced my water pump for the aluminum revision and I noticed that my valves definitely need to be cleaned lol.


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[MongoMcG]

...Does IE’s install kit make this an easier install or is there still some fabrication to be done? Im not looking to fab anything lol.

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The install kit is definitely necessary. It includes everything except instructions. You would also need to add a new silicone pipe from the charge pipe to the throttle body. ECS was the only source I found for that (017621ECS01A), and I trimmed about 1.5 inches from both ends of their hose.

Here are links to posts in my build thread that deal with the IE intake manifold install:
Post #15 - Part 1 of 6, component transfer
Post #18 - Part 2 of 6, making the bracket to mount the vac purge solenoid on the IE IM
Post #20 - Part 3 of 6, vacuum block-off and left over parts
Post #16 - Part 4 of 6, a home remedy solution to shrink the teflon seals onto the fuel injectors
Post #24 - Part 5 of 6, the IE intake manifold is going in the car
Post #25 - Part 6 of 6, bending the hard fuel line and wrapping up the driver side of the engine

[JLAllroad]

Okay thanks for all the info. I have all the other necessary mods (intake, hfc, tune, intercooler, etc.) and so this would just be the last piece of the puzzle. IE now makes a stage 2 IM tune so im not worried about tunes. Does IE’s install kit make this an easier install or is there still some fabrication to be done? Im not looking to fab anything lol.

As far as the valves, I just recently replaced my water pump for the aluminum revision and I noticed that my valves definitely need to be cleaned lol.


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There are cars out there doing over 400whp on the stock intake manifold, it is nothing more than engine jewelry.


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[Nano909]

Bro we have a 480whp car using a Boss500 kit with stock intake manifold. You don't need it. Spend the money on a K04 instead so you can get rid of your choppy turbo sound.

[jospin]

Bro we have a 480whp car using a Boss500 kit with stock intake manifold. You don't need it. Spend the money on a K04 instead so you can get rid of your choppy turbo sound.

Ah aight. The price is lowkey nuts for what it is too lol.


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[Nano909]

Ah aight. The price is lowkey nuts for what it is too lol.


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Definitely. You might see gains using one with a big turbo, but Definitely not worth it with a stock IHI or K04. Buy a CTS 1070X K04 turbo and enjoy.