MegaSquirt Engine
Management Systems
Wideband O2 Sensor Systems, Wiring
Harnesses
and more...
We are Your One-Stop DIY EFI
Shop!
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Who is DIYAutoTune?
Based in Suwanee, GA (near Atlanta) we are the primary manufacturer and
distributor of the MegaSquirt line of EMS/EFI Systems. In
short, we offer you an affordable way to run your race car on a fully
programmable fuel injection and ignition controller, with plenty of high end
features such as progressive nitrous control, boost control, 3 step rev
limiters, electronic fan control, and spare outputs to control just about
anything!
How can we help you accomplish your goal of running EFI on
your ride? Email us at
websales@diyautotune.com and let us know!
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Converting a carb'd engine to EFI?
Check out our 3-part series that shows how to do this very affordably,
or a bit flashier if you choose.
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Check
out our Bonneville Project! DIYAutoTune's Land Speed Nissan 240SX
Project Blog |
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Featured Products!

MegaSquirtPNP 90-97 Miata
Check out the new EFI Book, by our own Matt Cramer and Jerry Hoffmann

Innovate Motorsports MTX-L Wideband O2 System
Follow us on
Facebook /
Twitter
for
new product info & discounts!

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Welcome to DIYAutoTune.com. The place on the web for all of your
Do-It-Yourself (DIY) automotive tuning needs. We have everything you
need to install your own fully programmable Engine Management System on
almost any engine in any car / truck / motorcycle / boat / snowmobile,
you name it! For the hardcore DIY'er who wants to actually build
your own EMS, we've got you covered, for others who'd prefer we build
you up an ECU to your specs so you can just worry about the wiring and
tuning side of things (with our help of course), we've got you covered
too! We're even adding more and more Plug-n-play solutions to our
line-up...
Start reaping the benefits of a Standalone EMS immediately -- With
the ability to dial your engine in for maximum power and performance no
matter what modifications you've performed, and when you mod something
else, just dial it in-- you don't need to pay someone else to do this
for you if you've got a bit of patience and a willingness to read and
learn about the system a bit. It's laid out and made user friendly with
the first time EFI tuner in mind, but with the power of an advanced
Engine Management System.
So do our tuning products work with imports or domestics? YES!
DIYAutoTune.com's team are all equal opportunity performance junkies,
we love 'em all and the products we offer will work equally well on any
vehicle out there with very few exceptions. So come on in, check out
our Project and Customer Cars, read a bit on
the FAQ and see what you think.
You too can 'Tune it Yourself. Tune it for Less. Tune it Right.'
The DIYAutoTune Way!

We're on top of all of the latest tuning products and kits with great
products like Bowling and Grippo's MegaSquirt line of DIY Programmable
Electronic Fuel Injection systems, and excellent Wideband O2 systems and
tuning products from Innovate Motorsports, with our own line of wiring
harnesses and accessories to make your project go as smoothly as
possible.
We offer the full line of Bowling and Grippo's MegaSquirt Engine
Management Systems in kit form or fully assembled and ready for use.
All of our electronics kits are
clearly labeled and include everything you'll need to build your own
unit. Additionally we offer extruded aluminum cases with professionally
machined endplates for those of you who purchased your MegaSquirt
components elsewhere, as well as the 'old-school' B&G partial kits if
you'd like to piece your own kit together. You can view all we have to
offer on our our Online Catalog. We're
adding new stuff all the time, many items at the request of the
customer-- we've been your 'One Stop DIY EMS Shop' since late 2004 and
we're here for you-- so let us know if there's anything we can do to
help you move your project along!

You're used to working with tools right? So let's put a new tool or
two in your pocket, tools that may just be the most powerful you've ever
wielded in your quest for automotive performance. You CAN do this
yourself if you want to, and you CAN do it right, the information you
need and desire is right here for you-- or if you prefer you can farm the install and
tuning out to your favorite shop and just enjoy the benefits, that's up to you.
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MegaSquirtPNP Power FTW!

Congrats to Gary Hart for his 240.984 mph World Record!

Check out
this page for pics of SpeedWeek 2006-2008, and
Gary Hart's page
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