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Welcome to Top Dog Diesel - Your Performance Parts Solution!

Top Dog Diesel provides a complete line of performance parts and accessories for diesel trucks and gas powered trucks and SUV's too. We cater to every performance need, basically anything for your auto. Looking to turn your diesel truck into a dragster, or do you just want to save some money on fuel? Either way, give us a call and we will help you select the best system for your needs. Found it cheaper? Ask about our matching price program. Need help picking out that perfect gift for your truck enthusiast, let us help.
We are also a master distributor of Quadzilla Diesel Performance products. We stock exhaust systems, including premium T304 stainless steel exhausts. Our line of tuners, programmers, and diesel performance chips will leave the others eating your smoke. Pick up some Autometer gauges to monitor the performance you get from your new NOS system or Turbo Chargers.

Don't pay too much for your performance accessories. Browse our catalog then call us to order today. We will make the call worth your while. Open eight to eight Mountain Time Monday through Saturday, one to eight on Sunday! All orders are placed through our toll free phone number: 1-866-494-8558. Or in Colorado call us at 720-207-9011. We take Visa, Mastercard, AMEX, and Discover.
If you would like the convenience to click and buy without telephone calls, please visit our sister store at GrimmPerformance.com

Wholesale and Dealer inquiries are also welcome!

Thanks for choosing Top Dog Diesel!

Diesel Truck Upgrades

Ford
Ford
Chevy
Chevy
Dodge
Dodge

The Big Three
We have tons of products for Ford, Chevy and Dodge trucks, as well as SUV's and other big vehicles like the Hummer H2 and Cadillac Escalade. Whether you are browsing our catalog, or searching for something specific, we have the best performance products at the right price. Call us today.

Intake and Exhaust

Exhaust Systems
Exhaust SystemsExhaust Systems
Check out our selection of four inch stainless steel exhausts and our monster five inch tips!
Gauges Gauges, etc. 
Monitor your EGT, turbo boost and transmission temps with our advanced gauges.

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We take First Place in the Big Dawg Diesel Competition (Unlimited Class)

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Top Dog News

Quadzilla Releases the New Stealth 2 Tuner for 07.5-08 LMM Duramax
At long last Quadzilla has released a programmer for the 07.5-08 Chevy Duramax LMM. This tuner is called the S2TUNER-LMM and will add up to 110 HP onto Chevy’s powerful new Duramax. Programming combines the use of fuel injection pulse width and injection timing to create the ultimate horsepower and torque curves. The precision tuned timing maps are one of the reasons the Stealth Programmer has the lowest exhaust temperatures on the market. Perhaps the best part of the Stealth Tuner is the mileage gain that you will see. We all know that a more efficient engine will gain fuel economy and we know exactly where the stock parameters are lacking. Depending on your driving style, you can expect to see a 1-4 mpg increase!
The Quadzilla Stealth Tuner is packed full of power and features for your 2007-2008 LMM Duramax. Included in this awesome tuner is the ability to modify your speedometer to compensate for larger tires, remove your top speed limiter, retrain your transmission, and read and erase engine and transmission fault codes. All tuners also have the ability to use these user-defined categories without installing an engine tune. Quadzilla also offers free updates and revision to the original owner forever.

16 Nov 2007 by kirk
Top Dog Diesel Adds LightForce
As you know, we here at Top Dog are always striving to find the best products out there for your truck or SUV. We have primarily stayed on performance stuff in the past, such as Diesel chips and gas tuners, but we have found a new line of products that we think are just great! LightForce Driving and Fog Lights are manufactured in Australia by a company that is absolutely crazy about this stuff. These lights are unlike anything else we have ever seen. The lenses are made of Lexan, which is bullet proof and sure isn’t going to break just because of some gravel! Also, these guys use a series of snap on lenses to change the lights between driving, fog, infra red, or several other options. Now you don’t have to buy two sets of lights or choose between fog or driving. In just a few seconds you can change from one to the other.

LightForce makes a ton of different covers for their lights. They even have a black cover to keep people in California from getting busted for uncovered lights! There are special green filters that help show wildlife. Blue and yellow are other colors available as well. They also make an excellent wiring harness that is very heavy duty and easy to install. Sizes include the 140 Lance, the 170 Striker and the monstrous 240 Blitz. You will love these. Give us a call and let us help you pick some out.

28 Sep 2007 by kirk
PPE Introduces LMM Hot Xcellerator for 2007.5-2008 Duramax
Pacific Performance Engineering, PPE for short, has done it again! They have released the HOT Xcellerator for the 2007.5 to 2008 Chevy and GMC Duramax Pickups. This tuner does it all, reads and erases diagnostic codes, adjusts for tire size, and makes some serious horsepower. There are five power levels available including +40, 90, 160, 225, and 300 HP! Find anybody else that offers that!

The PPE Hot Xcellerator works with the new emissions system and leaves no footprints behind when you re-set to stock. Check one out today.

20 Sep 2007 by kirk
AFE Releases Cold Air Intake for 2007.5 LMM Duramax
aFe, Advanced Flow Engineering, has released their Stage 2 Cold Air Intake for the 2007.5 GMC and Chevy LMM Duramax Engine. It replaces the OEM air filter and box with a 360 degree radial flow filter with the deepest pleats in the industry and a heat blocking shield. The filter material is washable and re-usable and comes in the standard 5 ply, Pro Guard 7, or the new dry filter material. Install time is about an hour and is completely reversible as there is no drilling or tapping involved.

Pair up the aFe 75-81332 with our new PPE LMM Xcellerator Tuner for some major increases on this new powerhouse truck. Give us a call or shop online for the best prices.

11 Jul 2007 by kirk
Quadzilla Releases the new Rail Pressure Gauge
Quadzilla has released a new stand-alone Rail Pressure Gauge for the 2003 to 2007.5 Dodge Common rail Diesel, including the new 6.7L. This unit, part number RPG3000, will measure the fuel rail pressure up to 27,500 psi, which allows you to know exactly what is going on with your fuel system. It will even retain and display your max and min pressures for you! This application is perfect for a mild performance chip or even a monster set up on your rig. For complete protection for your Doge Cummins, add the Fuel Pressure kit, part # EWCFPKIT40, to keep up with what is going on between the tank and your injection pump. This unit is completely plug and play with no splicing or wire tapping!

We feel this is a great tool, especially when paired with a Quad Xzillaraider Race box or a PPE Xcellerator Tuner. For those of you who have already bought something and you are concerned if you might be maxing out your rail pressure, this gauge is the one for you!

23 Jun 2007 by kirk