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Discussion Starter · #1 ·
Alright well I was looking around and thought it would be nice to have something to show the do it yourselfers that this install isnt hard. Since ive been on this forum ive noticed a few people ask where they should go to have their Srt Intake installed? Trust me its not that hard.

Tools Needed:

1) Phillips and Flathead Screwdriver
2) 10mm Socket and Rachet
3) Extension for the Socket
4) Soldering Iron or Gun (Your Preference)
5) Solder (Of Course)
6) Wire Strippers
7) Electrical tape

Now to get started

First thing you wanna do it disconnect your negative cable off your battery

Next thing we need to do is take off the OEM Intake system. First you gotta take the engine cover off which is being held on by 4 nuts. Once that is taken off take you phillips screwdriver and take off your MAF sensor on your intake tube.



Then there should be another sensor on the right side of the airbox being held on by a 10mm bolt. Take that off and disconnect the tubing to the airbox.

Now to take the intake off. There should be 3 10mm bolts holding the box in. This is where your extension comes in handy to get down and get them. Now you need to take off the bracket off up where the intake goes in to.



Once that is loose your will need to play around with it as it might be stuck on there abit. Once that is ready to come off disconnect the hose attached to the intake tubing up top. Now your intake should come out.



Next thing you wanna do it get the heat shield that came with your kit and put that in where your OEM airbox was.

Now you can install your new Srt Intake piping on just like the oem piping. Air filter will need to go on after you get the piping on and through the heatshield. Once that it on there connect your MAF sensor on your new piping with the new bolts that came with the kit. Make sure you have it on the right way (Should be an arrow). Your want the arrow pointing the way the air is flowing (Into the engine, Not towards your filter). Now we should be ready to move onto the ecu install.

Ecu Install:

First you need to take the 3 10mm bolts off of the cars ecu cover located behind the drivers side headlight.



Take off the cover, then you will need to unclip the white cover over the wire harness of the ecu.

Ok now for the stripping of the wires. You will only need to remove the insulation from the wires besides 1. The other 1 need will need to cut the wire. There is a few wires u might need to dig around to look for in the harness but easy to find. If you need to remove some of the tape holding the wires tight together. I only need to do this for 1 of the wires. Now this all depends on your year of the car. My car is a 01 so I followed the 01 Diagram.



Now finding the wires( in the pic above im on the drivers side looking down at the ecu.

In the red box (above pic) the 12v Black/Red wire is the first 1 in the left upper corner.

In the black box The Ground (Brown) wire is the first 1 in the left upper corner. The Sensor 1 (Green/Black) wire is *starting from the left upper corner* is 3 over and the 2nd one down. Sensor 2 (White/Red) wire is *starting from the right upper corner* is the 2nd one over.

In the blue box The Ignition RPM (Black/Red) wire is 3 over and the 2nd one down.

Now remember you dont need to cut them all just strip the insulation away. The wire you need to cut is Sensor 1 (Green/Black).

I just stripped all the wires first then moved on to soldering instead of doing 1 at a time.

Here is the diagram if the wording above was confusing enough :)



Now take the correct color wire from the Srt ecu and match them with the correct wires on the oem ecu from the above diagram (Remember, Above pic is for 01 model). The pic below is for the 02+



To start just wrap the wires around each other then solder.



Remember to use electrical tape and wrap them up good. Can be difficult because the wires are so close together(Maybe try liquid electrical tape)? You should have enough room in the ecu to put the Srt ecu in there. Then put the cover back on and bolt it up.

Now just bolt the engine cover back on and reconnect the battery and make sure everything is picked up before trying to start the car so you dont not drops and hits the fan ;)

When your all finished it should look like this




If you have any questions or compliants about this please let me know so I can fix it asap. I know I got poor grammar so please tell me if something is mispelled haha.

Of course remember to put the coupler on the ram air. forgot to take a picture with it on.

If you having any trouble referr to the pic below




Enjoy your new Srt Intake!!


 

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solid tutorial. Probably the best one ive seen. I was gonna say "done before" and that would be that, but this is damn good. nice pics too. have some rep
 

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good writeup, only one question, what did you do spray clear coat all over your engine bay???
 

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Awesome write up!

Can you get closer pictures of some of the vaccum hoses around the VSV and evap hoses area?
 
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Discussion Starter · #7 ·
good writeup, only one question, what did you do spray clear coat all over your engine bay???
Haha no i didnt.. tire shine is what I use. always works good for me.

And IS300neh2 The orange wire goes to the Sensor 1 Input. The wire that you cut in the ecu harness. Hold the 2 ends in your hand and the wire that leads out into the engine is the input and the 1 going to the ecu is the output. Connect the orange wire to the input

Thanks everyone im gonna read it over again maybe add few more pics. Just got off work (6:30pm-6:30am) is killer haha.
 

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i love these pictures tutorial, they are really helpful with the pictures. thank +rep
 

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What did you do with the air box on the front of the engine bay? The one that takes in the air from the front of the hood with the stock exhaust...would you recommend keeping it or is it unnecessary and just remove it?

I just received my SRT and R-ECU and will likely install it this weekend. Thanks for the great write up though! +Reppppp!
 

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What did you do with the air box on the front of the engine bay? The one that takes in the air from the front of the hood with the stock exhaust.???????:confused: ..would you recommend keeping it or is it unnecessary and just remove it?

I just received my SRT and R-ECU and will likely install it this weekend. Thanks for the great write up though! +Reppppp!
If your talking about the inlet of the intake its in your best interest to keep that....Do what the instructions say.

Hey to OP you forgot to install the intake tube from the induction of the intake to the shield now noobs are going to think we dont need that kind of stuff ........

Good write up
 

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Haha no i didnt.. tire shine is what I use. always works good for me.

And IS300neh2 The orange wire goes to the Sensor 1 Input. The wire that you cut in the ecu harness. Hold the 2 ends in your hand and the wire that leads out into the engine is the input and the 1 going to the ecu is the output. Connect the orange wire to the input

Thanks everyone im gonna read it over again maybe add few more pics. Just got off work (6:30pm-6:30am) is killer haha.
Saw you in CL and honked - you looked and i heard your SRT lol ....sounds good clean car!:approve:
 

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Good write up! I remember the hassle I went through just last summer, after reading the installation manual from SRT. It was so confusing!
 

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Nicely written. I wish I had this when I did mine. Definitely easier to follow +Rep for you.
 

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I used this to install mine. I referenced it a couple different times, and it helped each time. Very nice write up man. +rep for the time and effort.
 

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Just wanted to post my appreciation for this DIY thread. It helped me so much in installing mine. It made it even so much more easier with the provided pics. It can't be anymore clear cut the instructions provided. I installed my SRT Intake w/Race ECU last Monday 10/4/10. And I couldn't be happier! Let me state that prior to this install, I've never soldered anything in my life. Reading this DIY gave me so much more confidence, and in the end I gained experience & knowledge without the necessary hassles. Thank you "Lexus01IS300" so much for taking the time to write this very important DIY. And thanks to all the other forum members who have contributed knowledge in the past as well. I owe each & everyone of you a debt of gratitude! Here it is:






Thanks so much my.is DIY Threads!!! :cloud9:
 

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Is the difference in sound and performance really that noticeable?I've never heard a srt intake before,but a friend of mine said when the vvti kicks in it is amplified so much by the srt intake it almost sounds like an f1 car, maybe there is exaggeration on his part but really,does it sound that good?
 

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Is the difference in sound and performance really that noticeable?I've never heard a srt intake before,but a friend of mine said when the vvti kicks in it is amplified so much by the srt intake it almost sounds like an f1 car, maybe there is exaggeration on his part but really,does it sound that good?
it roars
sounds like its supercharged....

ive acutally had people ask me if its supercharged

i love punchin the gas and hearing the car roar
 
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