HOW-TO BUILD A DIY SPLITTER & AIR DAM

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Jon Widmer
PO Box 13594
El Paso, TX 79913
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Disclaimer
"Due to factors beyond the control of Garage Built Hondas, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. Garage Built Hondas assumes no liability for any property or personal damage that may arise from doing a repair on your vehicle after watching any of my repair videos. Due to factors beyond the control of Garage Built Hondas, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Again, any injury, damage or loss that may result from improper use of tools, equipment, or the information contained in this video is the sole responsibility of the user and not Garage Built Hondas."
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#HomeDepotLip #PCIbrackets #Plywood

[@conifer9879]

I love how you show your thinking process as you go through the build. It makes me think that I could try this myself!

[@Apexracingbr]

I don’t always comment but when I do is for something cool like this, great job!

[@exenuvo2383]

Polycarbonate is alot stronger than plywood. More expensive but I would prefer not having splinters flying if I hit a rock or bump. But good design and excellent DIY! Over all 8/10 . Lol

[@Terruhcutta]

Robert Thomas i coated my plywood splitter with epoxy and then hit it with bed liner, i've hit curbs with no splinters haha

[@exenuvo2383]

@@Terruhcutta hell yeah, bedliner is magic in a can.

[@tatankahanska120]

But why wood ?

[@GarageBuiltHondas]

Cost, flexibility, ease of availability.

[@tatankahanska120]

@@GarageBuiltHondas that makes perfect sense

[@chrismoon8853]

Nice little set up. Same quick release splitter brackets on ebay for $100. Gonna steal some ideas from this.

[@hond4srule]

I can't believe how good that looks. Amazing !

[@jamesly1066]

Enjoyed your video like always. Today I got into an accident and totaled my Rio Red 90 SI EF Hatch. I’m so sad. I put much effort into the car just to restore it back to its glory days. There was no aftermarket modification aside from the stock performance HKS exhaust. I made sure every stock pieces were restored back to its original form. The car still has all of its stock suspension. It handled like it just got out the dealer from 1990. What a sad day. Now when I see your videos I will miss the joy my car brings me even more.

[@GarageBuiltHondas]

😭

[@ritchiemarsteller8884]

Wow! You did such a incredible job explaining step by step. You did a AMAZING job with this video and your splitter looks AWESOME 👍

[@GarageBuiltHondas]

Thank you so much!

[@joshgreaves9934]

I’m loving this. Looks really good dude 👍🏿👍🏿

[@tonyrichtermusic5396]

I dont know how anyone could thumbs down this video... great job.

[@GarageBuiltHondas]

Lazy bums.. lol

[@alejandroruelas5650]

Great fit and finish as usual. Keep up the great quality work.

[@bseries8826]

Man Jon you did 1 hella of a job! Looks awesome as hell and you made it easy for anyone who wants to replicate it. Thanks for sharing. You're the Man!

[@GarageBuiltHondas]

I love it! I'm going to make another one for the crx this year too!

[@benjaminbutton1124]

Love this build, especially the dedication and patience you have. Very thorough of giving advice and recomendations. Awesome content subbed and notifications on full.

[@GarageBuiltHondas]

Thank you!

[@brodiescott2728]

Awesome DIY, being able to see a solution and go build it like that is a real talent!

[@GarageBuiltHondas]

Appreciate that!!

[@tigris4149a2]

I love it already. Haven’t even gotten past the title screen. 🔥💪🏼

[@HooptyCrewRacing]

This is great. Glad I looked on the tube before I started my process. I'm pretty much going to do the same thing for my integra.

[@GarageBuiltHondas]

👍

[@MikeEH3]

Really cool project. Definitely gets the gears turning in my head for a similar setup.

[@MikeEH3]

Maybe use the second piece to cut a different shape and use a router to smooth the edges of the current one. Thanks for sharing.

[@GarageBuiltHondas]

I was thinking of trying to make it go farther back and make some mounts for it. More of an underbody kind of splitter. Not sure I can fit it though with the engine I have. We'll see where it goes!

[@ginoperez609]

Fatality!! Killing it like always.... salute!

[@AutoBodyEverything]

Thank you for all the tips and tricks that can be applied to other projects

[@GarageBuiltHondas]

Absolutely!

[@Southisack.Ceramics]

Looks solid. Thanks for the informative diy.

[@MuffinRacing]

Clever setup! Looks great in person

[@ANDERZENAMG]

really cool man! great job showing the process.

[@upfactoryracing4148]

Pretty clever build! Looks sweet!

[@georgevelez3224]

Awesome job , i did a rear spoiler for my truck but i brushed fiberglass resin on the plywood then sprayed it with bedliner to make it water proof.

[@GarageBuiltHondas]

👍

[@anthonythebeard]

dude this is awesome. thanks so much for putting the entire process up. if people don't have the right tools this will be a little more difficult to do but you don't need a lot to pull it off. another option is to go to a hardware store and look for L beams/brackets they use for construction based purposes. it'd probably be cheaper than the L brackets for splitters! keen to give this a whirl. It'll also stop me from bumping my street sweeper into those annoying concrete and rubber ledges in parking lots! have a blessed day brother :)

[@GarageBuiltHondas]

You're welcome, thanks for the comment and suggestions!! Glad you dig the video!

[@masonpugh3637]

That's a great job on that air dam where you can take it off and put it on with the edging and the wood it's good job you did great

[@adzthewise]

So awesome John mate, great job!

[@drewster956]

went ahead and put the dual springs in my ls head this weekend for my bcstage 2 turbo cams ,waiting to see ur allmotor cams dyno soon bro

[@jsol2480]

i love hearing your thought process. these came out great bro. it looks solid!

[@GarageBuiltHondas]

Appreciate that man!!

[@jsol2480]

@@GarageBuiltHondas Absolutely my pleasure bro. Tbh I've been watching mighty car mods for years. They took their content to massive projects now like swapping a b16 into a mini or installing all possible bolt ons into a golf. I guess what im saying is they are much more badabim badaboom type of content because the projects are much bigger. I am missing the diy type of content. Mods you do on your drive way. Keep it up bro! I am very happy to discover your youtube channel

[@Busydadgarage717]

Love it. Looks great! Really good job!

[@roelpastors9588]

Awesome! , I'll definitely need something similar regarding the quick release. With all the insane speedbumps we have over here in The Netherlands.

[@GarageBuiltHondas]

Yes, save you from destroying it prematurely!

[@calthorp]

Great job. Simple & effective.

[@GarageBuiltHondas]

Thanks buddy!

[@xXChaz9849Xx]

Haha I did the same thing with my Integra except I used a sheet of aluminum for the splitter itself, and then I used some scrap gutter material for the air dam.

[@Onefsturbocrx23]

I can say that you are the OG who invented this method for an EF bro :)

[@gustavomendoza6414]

Awesome video bro Definitely something I’m going to try out

[@TheJoecb]

Nice job man. I've been toying with the idea making something similar for my 97 Mirage. I plan on using a very thin wood to build the substrate something like 1/8" paneling. Then wrap it in fiberglass cloth and resin for strength.

[@GarageBuiltHondas]

That's what I may try next. I've never used either product so it'd be cool to try it out.

[@jazimmerman32]

Man that came out good looks good on the car man

[@saeturn29]

Nice work! I recently built my own as well for track use. May have to go back to redo a few things.

[@GarageBuiltHondas]

I want to upgrade mine also. Probably eventually I will.

[@shawnjacobi8717]

Looks really good I had never seen them mounts I just bent some 3/16 flat bar in to 90• But driving it on the hwy the very front was getting pulled down. so I had to mount some of them rods from the top of the bumper to the bottom of the splitter. But your turned out really good!

[@GarageBuiltHondas]

Thanks. I'm actually at the track today and it feels solid. Doesn't pull or feel out of wack.

[@InfiniteGamerXI]

Bro that looks so good! Super clean, super cool! Can’t wait to make my own front splitter

[@GarageBuiltHondas]

Thanks man, I love it. Going to make another one for my dad's crx soon too!

[@darioalcala6995]

Great video brooooo !!! Will do this on my ef sedan in cali!!!!

[@ModGyver]

Awesome work bro, mad respect

[@mikemoe3481]

Nice . I’ve learned a lot from your videos and keeps me motivated

[@GarageBuiltHondas]

Love to hear it. I'm always glad when I hear that it helps inspire and keep people wrenching!

[@pg03ben]

Love this, brilliant explanation… will try similar on my Megane I think!

[@GarageBuiltHondas]

Thank you!

[@30jspecial]

What a clean garage . That is the secret you guys . My garage is a catastrophe . You can get so much more done in an organized workspace

[@GarageBuiltHondas]

Completely!!

[@jamesmcbride1712]

Great diy splitter

[@MrRobear]

PCI makes great stuff!!! Good job man, it looks great!

[@GarageBuiltHondas]

Appreciate that man!!

[@johnnychimpo2928]

Awesome job!

[@georgelalama8154]

That was a great idea for a splitter. Can’t wait to see more videos.

[@GarageBuiltHondas]

Thank you!

[@TimothyMoreno]

Definitely love with your doing with the EFS man ive learned so much watching . i have a 1989 dx sedan its a zc. I gutted it n deleted ac components as well as cutting the rear bumper support n rear bumper for more air flow lol ! She feels like a little monster 😈

[@GarageBuiltHondas]

Thanks Tim. Love to hear about other EF's being fixed up and loved! 🙏

[@laintrain14]

This is awesome thank you for the video

[@ferndogg2184]

Im not even thinking of putting or making a splitter, For some reason I watched the whole video. Great video

[@GarageBuiltHondas]

Thanks man! ❤️

[@boostnboba7658]

Legit!! Also many time attack teams make splitters out of wood(s)* so I guess that’s a testament to the durability everyone is worried about. Also this one ain’t going no where with some general maintenance and inspection ever so often.

[@GarageBuiltHondas]

Thank you!!! Perfectly said!

[@joseperez1881]

Pretty fresh.

[@mobiledetail4you]

Very cool and informative video! Well done on all counts!

[@mattyc2815]

looks great dude! thank you for posting this!

[@GarageBuiltHondas]

Thanks for checking it out! 👍

[@710pappy]

Totally awesome 👍🏻

[@randomshawny2045]

Great idea!

[@tommyandchill]

Dang that came out sweet! I'm officially inspired to get my ass back in the garage and start wrenching again. Thanks Jon!! 🤘

[@GarageBuiltHondas]

Let's do this Tommy!!

[@easymail116]

Congrats on the class win!

[@GarageBuiltHondas]

Thanks Darrell!

[@operamatthew]

looks very good

[@dcs-motorsport]

Great job sir. 👍🏻

[@minimanadam]

Love the headlight intake

[@GarageBuiltHondas]

Thanks!

[@dummyjum]

Right on freaky bro lol. Looks dope.

[@natashafietje6218]

looks awesome mate, love your work! From Queensland, Australia

[@GarageBuiltHondas]

Thanks for the support from way over there!!

[@thehouseofprojects9356]

Looks really good bro missed your videos

[@Mikeonabus]

Thanks again! Normal track car videos are hard to come by.

[@GarageBuiltHondas]

Definitely!

[@ghosttheoremproductions5469]

Nice job. We would build these as both air dams and belly plates. Extending the rear back to the cross chassis brace. Cleans things up with the "dirty" aerodynamics of the underside of the engine bay, helps reduce front lift, and seems to aid in evacuating heat from the engine bay better. I guess it would help as a simple skid plate though plywood isn't going to stop much. Maybe just spread out an impact. We would thin out JB Weld and paint the wood since this not only seals it nicely but also keeps it from being exposed from abrasion X time. Some of us built setups where a front impact would lift the splitter up without damaging it. Free to move up/down but held down by gravity/aero and can't fall off thanks to nuts/washers and retention cables. Help if you're really pushing things to the curbs and are real low.

[@xpeacemaster]

can you point me at any pictures for a setup like that? can't seem to fidn the right words to googl eit

[@ghosttheoremproductions5469]

@@xpeacemaster - Probably the best sources for what I'm talking about will be found if you google DIY Miata Aero. Follow the individual pics into their respective forums for more. Miata guys have been doing budget aero write-ups for ages.

[@johnrathamone3261]

Looks great 👍

[@victor440_]

Awesome job

[@GarageBuiltHondas]

Thanks!

[@ryan_riffs]

There was a lot of elbow grease in that project! I just bought one of the "pistol grip" style pneumatic rivet guns on ebay, think like $36 and it really works great.

[@GarageBuiltHondas]

I need a better one. Mine is a harbor and on it's last legs. I'll look into that style, sounds better than this one.

[@valentinhristev174]

Great project man I also plan to do that kind of splitter on EVO X and quick release is a very good idea. ( EVO is DD car )

[@GarageBuiltHondas]

Thank you!

[@89GTFoxDude]

Awesome work man. Thanks for sharing. I had the same idea and this video just puts it into visual perspective. You plan to do the same for the sideskirts and rear diffuser?

[@GarageBuiltHondas]

Thank you! I already have a PCI diffuser, might end up just buying some of their skirts also.

[@spoonfixer3387]

The final shape you should make a jig of the other piece of wood so in case the other gets destroyed you have the measurements already transferred to the new piece. Nicely done. Always innovating bro. I dig it!

[@GarageBuiltHondas]

Good idea!

[@justinl8886]

Dope! Put a huge #garagebuilthondas decal on that splitter. Would be dope as you come down the track in the videos.

[@oldsklteg]

Best believe im throwing a GBH decal front and center on mine!

[@brad5316]

I absolutely love this video!!

[@GarageBuiltHondas]

Thank you!!

[@IAutoEnthusiast]

Awesome videos keep up the good work love your car

[@lawrenceulibarri2451]

Nice job looks good and functional....

[@GarageBuiltHondas]

👍

[@Daniel-bo1zs]

Dope my guy!

[@Studeo5150]

Great video. thank you!!

[@GarageBuiltHondas]

Thanks for taking a look!

[@austinrich6464]

Honda!! U could totally make it carbon fiber sweetness. Looks good how u did it and hella race. I like it.

[@SofaKingTouge]

Carbon fiber is expensive and these parts break a lot. Still best to make a template and then like 4 or 5 of these. Wrap in a couple layers of carbon and epoxy for more strength and it won't come part as easy when hit.

[@austinrich6464]

@@SofaKingTouge maybe even a lil Kevlar layer twards the front on leadimg edge even. "Bullet proof" jk. But ur right Todo all the carbon process would be pricey.

[@SofaKingTouge]

@@austinrich6464 I was thinking I should have said kevar. I'm doing skid plates in 1/8th aluminum wrapped in Kevlar. Aluminum alone is garbage. Wrapped in Kevlar is half the weight but just as strong and steel.

[@austinrich6464]

@@SofaKingTouge that would be sweet! Maybe aluminum Honeycomb wrapped help on whight alil. Regardless that lil Honda looks clean with that splitter now. And it prolly works well.

[@Mikeonabus]

Angle grinder, The offical woodworking tool of mechanics.

[@GarageBuiltHondas]

All day!

[@park0rdie]

Sick build bro!!

[@GarageBuiltHondas]

Thanks man!

[@franciscomartebobadilla7877]

Love it, great Job, i have dx 1989, and doing the same thanks

[@GarageBuiltHondas]

Nice, have fun! Love these little toys!

[@professorex9356]

Love the content man. I want to swap an OBD2 b18c type r motor do in my ef. Is it best to convert the car and engine to obd1? Can’t wrap my brain around what I need to do to get it working. I would be getting the matching ecu and harness with the engine.

[@GarageBuiltHondas]

Obd1 is usually easiest plus ability to tune. The harness you won't use. You'll use your original harness and modify as needed.

[@benyam261]

That come out look good

[@GarageBuiltHondas]

Thanks!

[@throughmyeyesmedia6492]

Damn bro your very creative on making lots of things work. And the splitter came out really good!

[@GarageBuiltHondas]

Appreciate it buddy!

[@juniorroman6038]

Dope nice idea 💡 bro keep going

[@JakeDeSilva1]

Nice how to!!

[@TheLazyLemmon]

Pretty clean brother

[@GarageBuiltHondas]

Thanks

[@d3sist68]

Great video! Well done

[@GarageBuiltHondas]

👍😀

[@jrflores6856]

Keep up the good work brotha👍

[@GarageBuiltHondas]

For sure brotha!

[@scottharris5421]

Awesome job man. What size plywood did you use? I'm planning on making a splitter for my car but it's not a honda so I'll need to modify your setup. But it's got the ball rolling on how to mount the splitter

[@GarageBuiltHondas]

I used 1/2" or 15/32". I can't remember exactly but both work perfectly fine!

[@dejesusmouse9841]

I really like your channel I learn allot

[@GarageBuiltHondas]

That's what I like to hear! 👍

[@klasmedak556]

Those brackets are wicked! My only concern is how the heat from the header is going to interact with the plywood..

[@GarageBuiltHondas]

I had no issue at all. I'll try to remember to address it in the track video coming out on 4/20.

[@MR-06]

Really clean nice work! Do you know how much weight the rivnuts are rated? I would think that the rivnuts would be the limitation point for how much front downforce is created?

[@GarageBuiltHondas]

Thank you. I am unsure but in my experience with using it I never had an issue. Did the same install on my crx and both have bounced off the pavement and random bumps with no issues so far.

[@jtorres2365]

Looks dope af bro very nice love it 💯💯

[@GarageBuiltHondas]

Appreciate that!

[@irocroadracer4356]

And how did track times compare?

[@blueridermg]

Very Very good 👍👌

[@JoMammaSmurf]

Ideally you're supposed to have a bit of an interference fit with those rivet nuts. To make cleaner holes start with a smaller drill bit and work your way up a couple steps. Also it helps to debur those holes and use a dab of sealant on the rivets.

[@GarageBuiltHondas]

Thanks for the info and tips! I appreciate the insightful info.

[@s4fedriver]

This was really cool! I think it would have been cool to paint the splitter with some kind of truck Berliner to resist rock chips and scraping from speed bumps and stuff!

[@GarageBuiltHondas]

That's a good idea!