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True Flow

True Flow air intake systems are a unique departure from traditional air intake systems. The factory air box is left intact keeping the airflow cooler while protecting the filter from debris and moisture. The factory filter is replaced with one of our foam, high flow, lifetime filters. Finally we eliminate the factory air tube, which can have restrictive mufflers or resonators and replace them with our high flow, powder coated mandrel tubes and reinforced silicone couplers to maximize velocity.

True Flow kits are easy to install and maintain. Each kit contains the necessary hardware required to install, (like our custom fiberglass reinforced silicone couplers and stainless steel worm clamps). No modifications are needed, and all factory breathers, sensors and hoses are left intact.

True Flow stops more dirt due to its superior foam technology.Foam has been used for years in off road applications such as motorcycles, ATVs and Off-Road... Read more >>

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True Flow Cleaning Kit

Restore your True Flow filter to factory condition with this cleaning kit. The True Flow foam filter is a unique system and requires special materials to clean and re-charge.



Category: Air Intakes and Filters
Fits: Any
True Flow Cleaning Kit
True Flow Intake for all 96-00 5.0, 5.7, 7.4L Chevy/GM Trucks

Intake system by True Flow. If you would like to purchase this item, you can contact Top Dog Diesel by phone or email. Or, if you would like to purchase right away by Credit Card or PayPal, please visit our sister site, Grimm Performance. The link...

Category: Air Intakes and Filters
Fits: Chevrolet, GMC Truck & SUV

True Flow Intake for all 96-00 5.0, 5.7, 7.4L Chevy/GM Trucks
True Flow Replacement Filter for all 96-00 5.0, 5.7, 7.4L Chevy/GM Trucks

Original replacement filter for True Flow intake.



Category: Air Intakes and Filters
Fits: Chevrolet, GMC Truck & SUV
True Flow Replacement Filter for all 96-00 5.0, 5.7, 7.4L Chevy/GM Trucks
True Flow XDi Intake for 06-07 Duramax

True Flow XDI “Xtreme Duty Intake” for Chevy GMC LLY and LBZ direct bolt-on application with ultra high flow, aggressive sound and extreme looks. The True Flow XDI is constructed from powder-coated mandrel bent tube and nylon reinforced silicone...

Category: Air Intakes and Filters
Fits: Chevrolet, GMC Duramax

True Flow XDi Intake for 06-07 Duramax
True Flow Intake for all 00-05 GM 4.8, 5.3 & 6.0L

Intake system for most GM gas engines. If you would like to purchase this item, you can contact Top Dog Diesel by phone or email. Or, if you would like to purchase right away by Credit Card or PayPal, please visit our sister site, Grimm Performance....

Category: Air Intakes and Filters
Fits: Chevrolet, GMC, Hummer, Cadilac Truck, SUV & H2 Gas Engines

True Flow Intake for all 00-05 GM 4.8, 5.3 & 6.0L
True Flow Intake for all 00-05 GM 8.1L

Intake system for all GM gas engines. If you would like to purchase this item, you can contact Top Dog Diesel by phone or email. Or, if you would like to purchase right away by Credit Card or PayPal, please visit our sister site, Grimm Performance....

Category: Air Intakes and Filters
Fits: Chevrolet, GMC, Hummer, Cadilac Truck, SUV & H2 Gas Engines

True Flow Intake for all 00-05 GM 8.1L
True Flow Replacement Filter for all 00-05 GM 4.8, 5.3 & 6.0L

Replacement filter.



Category: Air Intakes and Filters
Fits: Chevrolet, GMC, Hummer, Cadilac Truck, SUV & H2 Gas Engines
True Flow Replacement Filter for all 00-05 GM 4.8, 5.3 & 6.0L
True Flow Replacement Filter for all 00-05 GM 8.1L

If all you want to do is replace the paper filter in your truck that flows little air and stops little dirt, here is your application. This filter traps more dirt than anything else on the market, but flows as much air as a gauze filter. It is washable...

Category: Air Intakes and Filters
Fits: Chevrolet, GMC, Hummer, Cadilac Truck, SUV & H2 Gas Engine

True Flow Replacement Filter for all 00-05 GM 8.1L
True Flow Replacement Filter for 03-05 Hummer H2 & H2 SUT

If all you want to do is replace the paper filter in your truck that flows little air and stops little dirt, here is your application. This filter traps more dirt than anything else on the market, but flows as much air as a gauze filter. It is washable...

Category: Air Intakes and Filters
Fits: Chevrolet, GMC, Hummer, Cadilac Truck, SUV & H2 Gas Engine

True Flow Replacement Filter for 03-05 Hummer H2 & H2 SUT
True Flow XDi Replacement Filter

Replacement Filter for all True Flow XDi systems.



Category: Air Intakes and Filters
Fits: Chevrolet, Dodge, Ford All
True Flow XDi Replacement Filter
True Flow Intake for 00-06 Cadillac Escalade EXT 5.3 & 6.0L

Intake system for True Flow. If you would like to purchase this item, you can contact Top Dog Diesel by phone or email. Or, if you would like to purchase right away by Credit Card or PayPal, please visit our sister site, Grimm Performance. The link...

Category: Air Intakes and Filters
Fits: Cadillac Escalade EXT 00-06 5.3 & 6.0L

True Flow Intake for 00-06 Cadillac Escalade EXT 5.3 & 6.0L
True Flow Intake for 99-00 Cadillac Escalade EXT 5.7L

Intake system by True Flow. If you would like to purchase this item, you can contact Top Dog Diesel by phone or email. Or, if you would like to purchase right away by Credit Card or PayPal, please visit our sister site, Grimm Performance. The link...

Category: Air Intakes and Filters
Fits: Cadillac Escalade EXT 99-00 5.7L

True Flow Intake for 99-00 Cadillac Escalade EXT 5.7L
True Flow Replacement Filter for 00-05 Cadillac Escalade EXT 5.3 & 6.0L

If all you want to do is replace the paper filter in your truck that flows little air and stops little dirt, here is your application. This filter traps more dirt than anything else on the market, but flows as much air as a gauze filter. It is washable...

Category: Air Intakes and Filters
Fits: Cadillac Escalade EXT 00-05 5.3 & 6.0L

True Flow Replacement Filter for 00-05 Cadillac Escalade EXT 5.3 & 6.0L
True Flow Replacement Filter for 99-00 Cadillac Escalade EXT 5.7L

Original replacement filter for True Flow intakes.



Category: Air Intakes and Filters
Fits: Cadillac Escalade EXT 99-00 5.7L
True Flow Replacement Filter for 99-00 Cadillac Escalade EXT 5.7L
True Flow Intake for 01-04 LB7

True Flow has come out with an excellent product for improving the air flow into the Duramax engine. The top of the filter box is replaced along with the tubing from the filter box to the turbo inlet. Also included is the washable and re-usable True...

Category: Air Intakes and Filters
Fits: Chevrolet Duramax

True Flow Intake for 01-04 LB7
True Flow Replacement Filter for 01-05 Duramax

If all you want to do is replace the paper filter in your truck that flows little air and stops little dirt, here is your application. This filter traps more dirt than anything else on the market, but flows as much air as a gauze filter. It is washable...

Category: Air Intakes and Filters
Fits: Chevrolet Duramax

True Flow Replacement Filter for 01-05 Duramax
True Flow Intake for 04.5-05 LLY

True Flow has come out with an excellent product for improving the air flow into the Duramax engine. The top of the filter box is replaced along with the tubing from the filter box to the turbo inlet. Also included is the washable and re-usable True...

Category: Air Intakes and Filters
Fits: Chevrolet Duramax

True Flow Intake for 04.5-05 LLY
True Flow Replacement Filter for 94-02

If all you want to do is replace the paper filter in your truck that flows little air and stops little dirt, here is your application. This filter traps more dirt than anything else on the market, but flows as much air as a gauze filter. It is washable...

Category: Air Intakes and Filters
Fits: Dodge Cummins 24V

True Flow Replacement Filter for 94-02
True Flow Intake for 03-07

True Flow has come out with an excellent product for improving the air flow into the Cummins engine. The top of the filter box is replaced along with the tubing from the filter box to the turbo inlet. Also included is the washable and re-usable True...

Category: Air Intakes and Filters
Fits: Dodge Cummins Common Rail

True Flow Intake for 03-07
True Flow Replacement Filter for 03-06

If all you want to do is replace the paper filter in your truck that flows little air and stops little dirt, here is your application. This filter traps more dirt than anything else on the market, but flows as much air as a gauze filter. It is washable...

Category: Air Intakes and Filters
Fits: Dodge Cummins Common Rail

True Flow Replacement Filter for 03-06
True Flow Intake Dodge Ram 02-04 Hemi 5.7L

Intake system by True Flow. Designed for Dodge Ram. If you would like to purchase this item, you can contact Top Dog Diesel by phone or email. Or, if you would like to purchase right away by Credit Card or PayPal, please visit our sister site, Grimm...

Category: Air Intakes and Filters
Fits: Dodge Ram 5.7L Hemi

True Flow Intake Dodge Ram 02-04 Hemi 5.7L
True Flow Replacement Filter Dodge Ram 02-05 Hemi 5.7L

If all you want to do is replace the paper filter in your truck that flows little air and stops little dirt, here is your application. This filter traps more dirt than anything else on the market, but flows as much air as a gauze filter. It is washable...

Category: Air Intakes and Filters
Fits: Dodge Ram 5.7L Hemi

True Flow Replacement Filter Dodge Ram 02-05 Hemi 5.7L
True Flow XDi Intake for 03-07 Dodge Cummins

True Flow XDI “Xtreme Duty Intake” for the 03-07 Dodge 5.9L Common Rail direct bolt-on application with ultra high flow, aggressive sound and extreme looks. The True Flow XDI is constructed from powder-coated mandrel bent tube and nylon reinforced...

Category: Air Intakes and Filters
Fits: Dodge Cummins

True Flow XDi Intake for 03-07 Dodge Cummins
True Flow Intake for 99-03

This system utilizes most of the existing stock intake to make for simple installation and use. Simply replace the stock filter and the coupling between the flex hoses to allow massive amounts of clean air into your engine. The True Flow foam filter...

Category: Air Intakes and Filters
Fits: Ford Powerstroke 7.3L

True Flow Intake for 99-03
True Flow Filter for 99-03

If all you want to do is replace the paper filter in your truck that flows little air and stops little dirt, here is your application. This filter traps more dirt than anything else on the market, but flows as much air as a gauze filter. It is washable...

Category: Air Intakes and Filters
Fits: Ford Powerstroke 7.3L

True Flow Filter for 99-03
True Flow Filter for 94-98

If all you want to do is replace the paper filter in your truck that flows little air and stops little dirt, here is your application. This filter traps more dirt than anything else on the market, but flows as much air as a gauze filter. It is washable...

Category: Air Intakes and Filters
Fits: Ford Powerstroke 7.3L

True Flow Filter for 94-98
True Flow Intake for 97-04 Ford 5.4L F-150, Expedition

Air intake system by True Flow. Designed for Ford 5.4L F-150 and Expedition. If you would like to purchase this item, you can contact Top Dog Diesel by phone or email. Or, if you would like to purchase right away by Credit Card or PayPal, please visit...

Category: Air Intakes and Filters
Fits: Ford 5.4L F-150 and Expedition

True Flow Intake for 97-04 Ford 5.4L F-150, Expedition
True Flow Replacement Filter for 97-04 Ford 5.4L F-150, Expedition

Original replacement air filter for True Flow filter. Fits select years of Ford 5.4L F-150 and Expedition



Category: Air Intakes and Filters
Fits: Ford 5.4L F-150 and Expedition
True Flow Replacement Filter for 97-04 Ford 5.4L F-150, Expedition
True Flow Filter for 03-06

Air filter by True Flow.



Category: Air Intakes and Filters
Fits: Ford Powerstroke 6.0L
True Flow Filter for 03-06
True Flow XDi Intake for 03-07 Ford Powerstroke

True Flow XDI “Xtreme Duty Intake” for the 03-07 Ford 6.0L Powerstroke direct bolt-on applications with ultra high flow, aggressive sound and extreme looks. This unit completely replaces the stock filter box. No more fighting that factory design to...

Category: Air Intakes and Filters
Fits: Ford Powerstroke Diesel

True Flow XDi Intake for 03-07 Ford Powerstroke