Downey |
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| Downey Cold Air Intake | Downey Exhaust Systems | Downey Headers |
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Downey discovered that on EFI-equipped Toyotas, the air cleaner was enclosed in a box, and that any water that sucked into that box would be sucked into the engine, there was no provision for water drainage. So Downey created the first open air element kit that received smog exemption.
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Downey exhausts are designed cleverly so that a single system fits long beds, short beds, and 4 runners. They are also designed using state-of-art converters and mufflers.
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Downey headers have been developed after extensive testing, ensuring that you get headers for your Toyota that will make power and will be reliable.
After testing Downey has seen that tube diameter is most important on Toyota motors, not routing or shaping. Also, Downey has discovered that a tri-Y has no benefit to Toyotas.
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| Product Reviews |
great headers - 09/30/2007
Review for: Heavy 14 Gauge Nickel-Chrome Plated 4 Cyl Header
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I PUT THIS HEADERS ON MY 2.4LT.TOY TACOMA.IT WORKS GREAT WITH MY GIBSON 2.1\2IN EXHUST. DONT THINK ABOUT IT (JUST DO IT) |
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DOWNEY - Exhaust Systems - 2 1/2 inch Aluminized Steel Cat-B - 09/25/2007
Review for: 2 1/2 inch Aluminized Steel Cat-Back Exhaust With Stainless Steel 2 1/2 inch Catalytic Converter
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The cat is not needed to hook up from the stock or header back. non of the hangers came with or where welded on but other then that it sounds good and has great flow. |
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downey cold air intake - 09/22/2007
Review for: Replacement Air Intake Assembly
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very nice quality and appearance,easy installation and better performance too,really does give more power through out the rpm range. it also sounds good,i recomend this to everyone!!! |
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Great set of headers - 05/11/2007
Review for: Heavy 14 Gauge Ceramic Coated 4 Cyl Header System
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Great fit and finish...notable performance & fuel economy gains...be sure to follow the installation instructions TO THE LETTER! |
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great part - 03/15/2007
Review for: Heavy 14 Gauge Nickel-Chrome Plated 4 Cyl Header System
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The header its self is very nice, but however the EGR flange is incorrect. The flange on your header should not be the style flange that it is, you will have to look at it to understand. The EGR tube coming off the truck is a flat flange that is to mate to another flat flange sealed with a metal gasket. the flange on the header has a lip on it and does not seat properly to my EGR tube. With a little ingenuity u can tweak it and make it seal, For now I had to double gasket it inorder to stop it from leaking. But I will be welding it instead to make it more secure. I will have to make a custom EGR tube. So the header is fine if you have a higher skill level in mechanincs to get the two parts to seal and not leak. This is in fact not a exact fit product. But I understand aftermarket and dealt with it. |
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great headers - 03/06/2007
Review for: Heavy 14 Gauge Ceramic Coated 4 Cyl Header System
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easy to install, improved power in my little 4 banger,didnt have any problems aligning with my cat. looks good under the hood. |
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not easy, but they are worth it - 01/28/2007
Review for: Heavy 14 Gauge Nickel-Chrome Plated 8 Cyl Header System
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i installed these headers on my 2000 toyota tundra 4.7 with about 215000 miles, and needless to say they didnt fall on. if you have four wheel drive you may want to have lots of patience because it is tight. the passanger side O2 sensor needs to be lengthened, and if you cant stand an exhaust tick, a trip to your local muffler shop is in store. overall after a great product. |
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sharp looking - 01/24/2007
Review for: Replacement Air Intake Assembly
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This is a great product. It gets rid of all the factory equipment before the throttle body. Looks great and makes good power. |
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Downey Headers - 08/13/2006
Review for: Heavy 14 Gauge Nickel-Chrome Plated 6 Cyl Header System
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The installation is not as easy as I thought, but it is worth it. The horsepower gain was phenomenal. The only problem I have is a slight exhaust leak which I believe can be fixed with welding of the slip fit joints. |
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more power to the 4 banger - 04/24/2006
Review for: Heavy 14 Gauge Nickel-Chrome Plated 4 Cyl Header System
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This product was easy and painless to install. I now feel and see a gain in torque, horse power, and fuel economy. Very great product for a 4 cyl Tacoma. |
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| Some of the reviews may have been edited by PCW moderators in order to comply with our review guidelines. |






great headers - 09/30/2007
downey cold air intake - 09/22/2007