The OFFICIAL Air Suspension Thread

Bag install and finished trunk

Went a different direction with my tank than originally planned. Ended up having it powdercoated the same color as the light part of my Cashmere interior instead of the bronze color I will be going with for my wheels. Felt that it tied the car together better. Painted middle, sides and rear sections of the trunk flat black (wish I would have painted the front section as well, you can see bare MDF when middle section is lifted up).

Re-installed compressors, tank, fittings and lines. Used Loctite 565 on the fittings and blue loctite on the exo mount bolts and nuts. Compressor motor wires were covered with Techflex braided sleeving as well as all ECU harnesses. The slot for the ECU harnesses was modified in order for wires to go straight down through the floor instead of to a central pass through. Need to tweak the right side compressor to manifold hardline due to a very, very small leak coming from the PTC fitting in the manifold.

Mounted the i-Level receiver underneath the car above the subframe onto the backside of some metal/plastic box. Not quite sure what it is. Wires were also covered with Techflex and ran through an existing hole on the front side of the spare tire well. Air lines and sensor harness wires were ran through this hole. Air lines and sensor harnesses were routed up and over rear of subframe to the lower control arm. Front air lines and sensor harnesses were routed above back side of subrame and follow the frame going over the gas tank then continue to the front on the inside of the frame rails. Both with be protected with Techflex sleeving but isn’t really necessary since our cars have two plastic covers running the full length of the frame rails.

Mounted the front struts first but had a tough time removing the OEM suspension, never worked on anything like it before. Strange how there is only one access hole for the bolts on top of the strut. When installing the rears I realized I had not set the stiffness of the front struts, which sucks because there is no way to adjust them while on the car since the adjustment is made from the top. They need to be redesigned with the adjustment at the bottom. All four were shipped at 2-3 clicks from all the way soft. I adjusted all four to the same setting being exactly in the middle. With the fronts off I went ahead and installed the air line as well. I wasn’t able to install the line or tighten the fitting easily with it installed. I wasn’t sure if any thread sealant was applied from the factory on the air fitting in the strut so I removed it and applied Loctite 565. This wasn’t necessary because a thread sealant had been applied.

There was not enough clearance for a wrench to tighten the air line fitting for the rears when installed either. Had to lay the bag on its side to install the air line. I used a PTC tee fitting with the T side plugged and my air gun from my garage compressor to test the bags. Decided to use this setup to air up the rears in order to attach the top side of the bag mount to the car. The top of the rear bags use four set screws to clamp around the upper spring mount. I found this to be a very frustrating design due to limited access. It was not possible to even get an allen wrench on all four set screws. Filled tank to 150 and put about 50 pounds in all four corners with car still on jack stands. Three of the bags lost more air than desired overnight, so there are some leaks that need to be traced down.

Pics of install below.

Dang, you guys beat me to it. I just took a 3week vacay so my aired is put off for another month or 2. Lets see some video of the rides!!!

ghicks99 said:

Dang, you guys beat me to it. I just took a 3week vacay so my aired is put off for another month or 2. Lets see some video of the rides!!!

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Still finalizing sensor install and had to make brackets for the front and rear. Will post some pics once I'm finished. Here is a quick clip using the i-Level on OEM wheels.

so i had a question for you matt sense you posted those clips up im ans seeing how much faster your front is then my car did you change the air pressure setting and if so
what is it running at are you at 200psi ? im hopefully going to install my sensors this weekend so i can finally be all done with mine

vipdoutaz said:

so i had a question for you matt sense you posted those clips up im ans seeing how much faster your front is then my car did you change the air pressure setting and if so
what is it running at are you at 200psi ? im hopefully going to install my sensors this weekend so i can finally be all done with mine

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Tank pressure setting has not been changed. 150 cutoff 110 turn on. The SMC watertraps are only pressure rated to 150 psi so I have no plans on changing the tank pressure setting. Accuair 5-gallon tank is pressure rated at 150psi but gets tested up to 300 psi. Max pressure on the bags is 200 psi so no problems upping the tank pressure if you don't have water traps installed. Pressure in the fronts is higher than in the rear. Run around 110-120 up front and 60-67 in the rears when at ride height on stock wheels.

My tank had full pressure when I shot those videos starting in the front. Are you running any pressure sensors for your bags? I would be curious to see how your pressure compares to mine. A lot of it has to do with how high or low your struts are set which is why I was asking about how much threads were visible from lock collar to lock collar in the front and rear. Can you take some pics and measure yours for me when you are installing the sensor arms?

Have a question for you about airing up the fronts. Do you ever encounter a situation when you can't air up in the front? If the pressure in the front bags equals the tank they wont air up, which makes sense. Happens to me around 110-117 psi. Hoping when the sensors installed a signal will tell the compressors to turn on when encountering this equal pressure situation.

Looking good. You answered some of my questions with the sensor arm install. I assume where you mounted the sensor was already there or was that plate welded on? Most installs ive seen people either had to weld the sensor or the ball mount. Looks like the drill/tap option is a good one. Well im finally back from being in hawaii for 3weeks so now i have to recoup so i can get this airride going. Your trunk setups are looking top notch!!!

I used existing tapped holes in the subframe and the inner fender well. The new upgraded sensors and arms have further travel, no mechanical stops and do not use the ball mounts anymore. If you look at the sensor arm the ends are similar to rod ends and are plastic.

Thanks for appreciating our trunk setups. Can't wait to see your install as well.

xiaphin said:

Tank pressure setting has not been changed. 150 cutoff 110 turn on. The SMC watertraps are only pressure rated to 150 psi so I have no plans on changing the tank pressure setting. Accuair 5-gallon tank is pressure rated at 150psi but gets tested up to 300 psi. Max pressure on the bags is 200 psi so no problems upping the tank pressure if you don't have water traps installed. Pressure in the fronts is higher than in the rear. Run around 110-120 up front and 60-67 in the rears when at ride height on stock wheels.

My tank had full pressure when I shot those videos starting in the front. Are you running any pressure sensors for your bags? I would be curious to see how your pressure compares to mine. A lot of it has to do with how high or low your struts are set which is why I was asking about how much threads were visible from lock collar to lock collar in the front and rear. Can you take some pics and measure yours for me when you are installing the sensor arms?

Have a question for you about airing up the fronts. Do you ever encounter a situation when you can't air up in the front? If the pressure in the front bags equals the tank they wont air up, which makes sense. Happens to me around 110-117 psi. Hoping when the sensors installed a signal will tell the compressors to turn on when encountering this equal pressure situation.

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so i dont have a guage due to hoping once i get the accuair all setup i wouldnt need it but im thinking about doing that now so we will see just so i can better manage my setup

i will take pictures and some measurements so we can compare where they are at while i put my sensors in this weekend

when i do air up with the tank full its about just as fast as yours but when tank is low the front will barely lift if at all , so im hoping once i get sensors a installed i can adjust pressure to lift a little faster i just feel there is not enough reserve air or pressure in the tank so id rather have the compressors kick on sooner when pressure is low then to wait until it gets to 110 psi becuase after speakin with tony the front bags need about 100 just to initially fill the bag not even to lift so if your tank pressure is 120 and you need to lift car for any reason your not going to have enough to do anything

Based on your comment about airing up when tank is low we are seeing the same situation. Shea Wilder over at Accuair said that once my sensors are installed to up the tank psi setting to 175 and there shouldnt have any problems. My only concern is the SMC watertraps are rated at 150. Have to consider changing these out if I encounter issues down the road.

FYI minimum recommended bag pressure is 30 psi. When aired out my rear bags only have 35-38 psi. Car is not driveable at this height so it should be just fine.

Do you have any issues with your front swaybar end links popping while turning after installing your bags? I am not pleased with the location of the mount on the strut. The passenger side is spaced 1" farther to the rear than the driver side and stock position. I will be ordering parts to make my own adjustable end links in the coming days.

Pics of car on OEM 17's. Rear can go lower but the front is pretty much as low as it can go before the upper control arms bottom out.

hey matt i had thought you already had your sensors installed or did those locations not work out ? just wondering because i was going to do mine tomorrow or sunday . also wondering what bolts you used for the stock threaded mounting points .

now to answer your question with the sway bar i havent had any issues or any popping noises as of yet but i havent been driving to low due to not having sensors hooked up yet so until i get those then we will see and i was thinking the same thing as far as the adjustable end links my buddy works at ksport so i may just go buy some from them

ill make sure to take pictures of how low they are threaded i truthfully just through them in the way tony had them setup because i liked the stance of his car from his pictures

Sensor locations are good just had to make another front bracket, paint them and cut the rods to length. For the bolts the rear mounting holes are M8x1.25. Fronts are M6x1.0. Font remember length since I used leftover bolts from parting out my SR20 S13.

Does K-Sport have a universal end link kit? I have already picked out my parts from McMasterCarr and plan on purchasing them later today.

Created brackets in the front and rear for the e-level sensors. There just so happened to be tapped holes in the rear subframe and front inner fender wells that were used to bolt the brackets to the chassis. Drilled and tapped both front and rear lower control arms to mount bottom end of the sensor rod. Clearance up front between the sensor arm and sway bar mount on the strut is very small, 1/4" or less.

With sensors installed I did the automatic calibration which was pretty cool. It airs up all bags to max tank pressure setting then begins to raise and lower the car. It creates the three presets based on percentage of suspension travel which I saved over because it wasn't low enough.

Maxed out the rear camber and should be around -2 to -2.1. Each notch in the camber bolt is approximately 0.09 degrees. Look to test fit wheels again early next week. Also relocated i-level to inside of the trunk after having communication problems. Might try a coax with sma connector extension cable and remotely mount the antenna under the bumper to increase the range. Haven't had any communication problems since.

Pics of brackets, arms, etc...

Vipdoutaz and Xiaphin thanks for posting the pics of your work.

Good quality stuff.

phvonyt said:

Vipdoutaz and Xiaphin thanks for posting the pics of your work.



Good quality stuff.

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Thanks man I appreciate it. Ended up being more work than originally thought. More work to come as well.

wow great work guys. nice to see more and more genesis sedan getting tweaked.
it's sucks that i don't have the genesis anymore but i'll be back with kdm car again still not sure what i want. but i got few cars that i been thinking about modding. keep up the good works guys!!!

GarciafactoryUS said:

wow great work guys. nice to see more and more genesis sedan getting tweaked.
it's sucks that i don't have the genesis anymore but i'll be back with kdm car again still not sure what i want. but i got few cars that i been thinking about modding. keep up the good works guys!!!

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Bag a 2015

well i have some updates on my build and some pictures of the final but not finished product got more coming for this car please let me know if you have any questions



before it was all cleaned up


full spare due to the car being my daily


the trunk finished for now


the car before any other stuff was done


the car at hot import nights








the front and rear vip table and bottle holder i built as well as the wood floor mats






and a rolling shot from yesterday

with all the months of hard work i was able to take home hottest hyundai from hot import nights , i wanted to give a big thanks to matt (xiaphin) for all the help and brainstorming we were able to do while we both were building our cars at the same time again without your help it would have been alot harder it was pretty awesome to be almost building ouyr cars together even though we are in different areas you are the man sir !

Good job man. Excellent work.

So, what's next?

The car looks great! Congrats on the award!