legal for sale or use on pollution-controlled motor vehicles
anywhere in the United States. Legal ONLY for off-road competition
racing vehicles and cannot be used on vehicles that are
operated on public streets, roads or highways.
use in warm climates. Maybe hard to start in colder climates.
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PLUS FREE SHIRT with orders
10% off Sinister Diesel now through Cyber Monday. Instant
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a Free Shirt* with any Sinister order.
free to request a shirt size in the comments of your order,
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little more boost? The grid heater delete is for you! The
Sinister Diesel grid heater delete can drastically improve
airflow in your 1998.5-2007 5.9L Cummins. A boost increase
of up to 1lbs and a huge increase in overall CFM.
running Cummins can start with no heater down to 32 F. During
the winter time you can easily remove your Sinister grid heater
delete and reinstall the heater for the cold starting conditions.
REGARDING EMISSIONS LAWS
Not legal for sale or use on pollution-controlled
motor vehicles anywhere in the united states. Legal only for
off-road competition racing vehicles and cannot be used on
vehicles that are operated on public streets, roads or highways.
product may NEVER be installed on a vehicle registered for
highway or public street use.
installing this product onto your vehicle, you assume all
risk and liability associated with its use.
is your responsibility to make sure your vehicle complies
with all federal, state, and local emissions laws. Federal
and many state and local laws prohibit the removal, modification
or rendering inoperative of any part of the design affecting
emissions or safety on motor vehicles used on a public street
or highway. Violation may result in a fine of up to $32,500
per vehicle (or possibly higher depending on changes in
the law). All civil penalties and fines for removing your
vehicle’s emissions equipment are the sole responsibility
of the end user.
to its high performance nature, this product may void vehicle
Mfg Company, Inc. is not responsible for misuse of its products.
By installing this product, you release Sinister Mfg Company,
Inc. of any and all liability associated with its use.
other applications besides off-road competition racing use
are intended or implied. Depending on where you live, additional
restrictions may apply. Check all applicable laws before
installing or using!
/ EGR Removed Warning!
PRODUCT MAY BE CAPABLE OF DISABLING ALL OR PART OF THE EMISSIONS
SYSTEM ON CERTAIN VEHICLE APPLICATIONS, WHEN SELECTED BY THE
END USER TO DO SO. EMISSIONS REMOVAL IS NOT LEGAL ANYWHERE WITHIN
THE USA, UNLESS THE VEHICLE IS NOT REGISTERED WITH THE DIVISION
OF MOTOR VEHICLES, AND IS BEING USED SOLELY AS A COMPETITION
RACE VEHICLE. BY SELECTING ANY SETTINGS THAT CAN ALLOW REMOVAL
OF EMISSIONS EQUIPEMNT, YOU ACCEPT ALL RISK AND LIABILITY ASSOCIATED
WITH ITS USE, AND AGREE TO THE FOLLOWING TERMS AND CONDITIONS.
settings or calibrations that may allow emissions removal are
intended and developed for off-highway, organized, sanctioned,
closed-course RACE/COMPETITION USE ONLY! Any other use, on ANY
road, public or private, within the USA, is STRICTLY PROHIBITED.
2.We insist that you do not select any calibrations or settings
if this vehicle has been registered or certified for highway
use within the USA.
3.This product when used incorrectly may violate local, state,
and federal laws pertaining to emissions, traffic, registration,
4.Use of this product may damage or destroy mechanical and/or
electrical components of this vehicle.
5.Use of this product may void or nullify the vehicles factory
6.User understands that motorsports are dangerous, and that
installation of this product may subsequently require special
driving skills or techniques to safely operate the vehicle.
7.User assumes sole responsibility for the safe, proper, and
legal use of the vehicle at all times.
8.The purchaser and end user releases, indemnifies, discharges,
and holds harmless Thoroughbred Diesel from any and all claims,
damages, causes of action, injuries, or expenses resulting from
or relating to the use or installation of this product that
is in violation of the terms and conditions on this page, the
product disclaimer, and/or the product installation instructions.
Thoroughbred Diesel will not be liable for any direct, indirect,
consequential, exemplary, punitive, statutory, or incidental
damages or fines cause by the use or installation of this product.