Smart Start Ignition Interlock

MDP Motorsports LLC

40950 FM 1774
Magnolia, TX 77354

#1 Ignition Interlock from $1.99/day

No Long Term Contracts

Same-day installation available

(281) 789-3002

Book your install now

Hours of Operation:

Day	1st Hour Block	2nd Hour Block
Sun	Closed
Mon	8:00am - 4:30pm
Tue	8:00am - 4:30pm
Wed	8:00am - 4:30pm
Thu	8:00am - 4:30pm
Fri	8:00am - 4:30pm
Sat	Closed

Services at this Location:

Installations
Calibrations

Book an Installation

With the thousands of locations across the nation, 24/7 customer support, no hidden fees and the most reliable device on the market, Smart Start Ignition Interlock devices are hands-down the best way to get you back on the road fast.

Get a quick and easy IID installation with Smart Start! Get started today!

¡Obtenga una instalación rápida y fácil de IID con Smart Start! ¡Empieza hoy mismo!

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Email* (required)

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Reason for Interest *

Interested in an IID ASAP (within 7 days)

I eventually need an IID (in MORE than 7 days)

I am a current customer and need customer service

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I consent to 1A Smart Start LLC and/or its franchisees' reaching out to me multiple times on an ongoing basis using telephone, text and/or email, including autodialed and prerecorded calls and texts, about our products, services, promotions, and other offers. This consent is not required to purchase goods or services. To opt-out of text messages reply "STOP", and to opt-out of emails click the unsubscribe link in the email. For texts, text "HELP" for help.

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By providing my information and clicking “Book Your Install Now,” I authorize [Insert Legal Name of Franchisee, distributor, or affiliate] to contact me at the phone number above via phone and/or text using multiple and periodic autodialed and prerecorded calls and texts for marketing purposes. Not a condition for purchase. Message and data rates may apply. To opt-out of texts, reply “STOP”.

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We can get you a quote faster if you fill out the information below.

Installation Due Date

Date of Birth

Drivers License #

VIN #

State Authority Name

Preferred Date

Preferences are subject to change based on availability.

Preferred Time

Questions/Comments

Or Call (281) 789-3002 Now!

¡O llame ahora al (281) 789-3002!

Why Choose Smart Start Ignition Interlock?

From $1.99/Day* - No Long-Term Contracts

Bi-weekly payment options designed to fit your budget.

IGNITION INTERLOCK COSTS

3,000+ Locations - Same Day Install

Quick installs by skilled technicians at convenient U.S. locations.

FIND A LOCATION

Discreet, Easy-to-Use Devices

Reliable, hygienic devices with guided tests and easy English-Spanish switching.

SMART START DEVICES

24/7 Knowledgeable State Program Experts

Multilingual support trusted by over 1 million people, ready when you need us.

TALK TO A PROGRAM ADVISOR

#1 Ignition Interlock Device Provider at MDP Motorsports LLC in Magnolia

Name: Smart Start Ignition Interlock
Address: 40950 FM 1774, Magnolia, TX, 77354, US
Telephone: (281) 789-3002
Rating: 5

Need an Ignition Interlock in the Magnolia area? Choose Smart Start, the ultimate Ignition Interlock provider for Texas. We provide our clients reliable and round-the-clock customer service with our Customer Care Center, and a quick and easy Ignition Interlock with a discreet appearance. Plus, we offer more than 100 service locations throughout Texas to choose from – more than any other provider!

Visit Smart Start for their Ignition Interlock services at Magnolia Diesel Performance at 40950 FM 1774. We look forward to serving you!

Make sure to ask for any current state specials or discounts! Call today to schedule your installation appointment at (281) 789-3002 or fill out our online form.

(281) 789-3002

Frequently Asked Questions

How much does an Ignition Interlock Device cost in Texas? What are the fees?

The overall cost of an Ignition Interlock Device is a combination of installation fees, monthly service fees, and removal fees. Exact pricing varies by state. To get a quote today, call (800) 831-3299 to speak with a friendly Program Advisor.

How often does my IID need to be serviced in Texas?

Texas mandate dictates that you will need to service your Ignition Interlock Device (IID) once every 30-67 days as determined by your jurisdiction.

What do I need to bring to my installation in Magnolia?

Once you have scheduled your Ignition Interlock Device (IID) installation with Smart Start, you will need to bring the following to your IID installation appointment:

Two forms of photo identification
Any and all court paperwork that has been given to you
Proof of residence
Car insurance and vehicle registration

If the vehicle is not yours, you will need to provide a letter of permission from the owner of the vehicle stating that you are allowed to install an Ignition Interlock Device.

How can I pay for calibration?

In Texas, you can pay for your Interlock Device calibration via credit card at the Smart Start service center at the time of calibration or via the online Client Portal.

What constitutes a violation in Texas?

In Texas, any and all of the following may constitute a violation:

Testing at or above the fail level of .030
Skipping or failing a rolling re-test
Missing your scheduled IID service appointment

Learn more about Interlock Device violations.

Where can I go for service? Anywhere, or just within my state?

Texas state law dictates that you can service your Ignition Interlock Device at any Smart Start service center nationwide unless informed otherwise by your State authority. Find the nearest Smart Start service center here.

Nearby Locations

All In Security Tint & Truck Accessories

22201 Mueschke Rd
Tomball, TX 77377

CLOSED – Opens at 7:00am Fr

Services at this Location:

Installations, Calibrations

(612) 607-1031 More Details

Smart Start of Conroe

1300 S FRAZIER ST
Conroe, TX 77301

CLOSED – Opens at 8:30am Fr

Services at this Location:

Installations, Calibrations

(936) 206-3054 More Details

Arcpoint Labs of Cypress

12312 Barker Cypress Rd
Cypress, TX 77429

CLOSED – Opens at 8:30am Fr

Services at this Location:

(817) 256-9426 More Details

See What Everyone Says About Our Ignition Interlock

Excellent TrustScore Rating

February 27, 2026

"The agent who helped me was friendly and informative! "

Mark A.

United States

February 27, 2026

"Done very quickly and thoroughly. Love it!!!"

Nicola L.

United States

February 27, 2026

"Melinda was very professional while still being very personable and got everything that I needed accomplished in a timely manner "

Aidan M.

United States

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Find a location near you!

MDP Motorsports LLC

Hours of Operation:

Services at this Location:

Book an Installation

Fast-Track Your Installation

Want to speed up the installation appointment process?
We can get you a quote faster if you fill out the information below.

Or Call (281) 789-3002 Now!

¡O llame ahora al (281) 789-3002!

From $1.99/Day* - No Long-Term Contracts

3,000+ Locations - Same Day Install

Discreet, Easy-to-Use Devices

24/7 Knowledgeable State Program Experts

#1 Ignition Interlock Device Provider at MDP Motorsports LLC in Magnolia

Frequently Asked Questions

Nearby Locations

All In Security Tint & Truck Accessories

Services at this Location:

Smart Start of Conroe

Services at this Location:

Arcpoint Labs of Cypress

Services at this Location:

Get Started

Locations

Support

Partners

Contact Us

Find a location near you!

MDP Motorsports LLC

Hours of Operation:

Services at this Location:

Book an Installation

Fast-Track Your Installation

Want to speed up the installation appointment process?We can get you a quote faster if you fill out the information below.

Or Call (281) 789-3002 Now!

¡O llame ahora al (281) 789-3002!

Why Choose Smart Start Ignition Interlock?

From $1.99/Day* - No Long-Term Contracts

3,000+ Locations - Same Day Install

Discreet, Easy-to-Use Devices

24/7 Knowledgeable State Program Experts

#1 Ignition Interlock Device Provider at MDP Motorsports LLC in Magnolia

Frequently Asked Questions

Nearby Locations

All In Security Tint & Truck Accessories

Services at this Location:

Smart Start of Conroe

Services at this Location:

Arcpoint Labs of Cypress

Services at this Location:

See What Everyone Says About Our Ignition Interlock

Get Started

Locations

Support

Partners

Contact Us

Want to speed up the installation appointment process?
We can get you a quote faster if you fill out the information below.