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aFe Power Silver Bullet 46-34008 GM Throttle Body Spacer

Free shipping on orders over $29.99

$138.99

$ 58 .99 $58.99

In Stock
  • In-house dyno testing resulted in max gains up to +8 HP and +12 lbs. x ft. of torque
  • Precision machined from 6061-T6 billet aluminum
  • Serrated/Helix Combination Design for optimum airflow into the combustion chamber
  • Includes all hardware
  • This product is 50-state legal (CARB E.O Number D-550-11)


The Silver Bullet throttle body spacer is constructed from precision machined 6061-T6 billet aluminum and is designed using a serrated/helix design that creates turbulence in the air flow at the point just prior entry into the engine optimizing the combustion cycle. This turbulence helps the air/fuel charge burn completely providing increased horsepower, torque and improved throttle response. During testing, Silver Bullet throttle body spacers have resulted 8 Horsepower and up to 12 lbs. x ft. of torque max gains. Serrated/Helix Design: The Serrated/Helix combination design creates intake turbulence in the combustion chamber. This turbulence breaks up the fuel which creates a more complete combustion cycle increasing horsepower, torque and improving throttle response. The Serrated/Helix combination design also reduces intake whistle that occurs with other Helix only designs. 6061-T6 Billet Aluminum Construction: All Silver Bullet Throttle Body Spacers are precision machined from 6061-T6 billet aluminum for light weight, high strength and perfect fit and finish. Longer Intake Track: Adding a Silver Bullet Throttle Body spacer lengthens the intake track which helps increase intake air speed increasing performance and improved throttle response.


Dani V
2025-09-07 13:07:50
After much online research on throttle body spacers (mostly negative) i decided to try it for myself anyway. Install was easy, 20 minutes max and looks good. My first initial thought was that i definitely felt a different response in my throttle. There was no whistle noise which was fine. I have no idea on specific gains as far as hp torque or mpg but i can definitely feel a bit of difference on my throttle. I have no complaints or regrets. Side note i later added a cold air intake and i can feel a huge difference. Im sure the spacer complimented the intake :)
Rich Nesgoda
2025-09-03 15:48:16
I already have a cat back system, k&n intake, and tuner on my 18 Silverado and this spacer made a big low end difference. I notice an improvement on take off and throttle response immediately. I do not notice anything on the top end but that may be different on a stock truck. I tow a lot of weight and it made a huge difference in take off with an attached trailer. It was worth the money for me and I will probably try them on my other vehicles. I do not know what it does for fuel mileage, I do not track my mileage.
Charles E Cook Jr
2025-08-12 15:39:10
Pretty fairly easy to install. I already had a different Cold Air Intake (Spectre). First time I didn't get a good fit on the gasket and the vehicle idled erratic. Took apart and reinstalled and worked just perfectly!!! I didn't hear a "whistle" noise. Improved throttle response and shifted nicely. Next I will do a cat back exhaust.I picked this over other throttle body spacers because it was silver. Didn't really want red accents all over a blue truck and cold air intake.
Matt Boyer
2025-08-03 13:49:28
The instructions mentioned to remove the OEM intake gasket and replace with the received paper gasket. When I started at my truck, I heard an amazingly loud whistle sound and noticed right away that the instructions were incorrect. I had to use the “green” OEM gasket with this intake spacer to function properly. After that, it worked okay.
Michael moss
2025-06-18 18:34:31
Easy to install, havent noticed any noise or whistle but have noticed my truck has little more pep when I need to pass slow drivers.
Ace
2025-06-14 14:19:16
Soon as l put it on it definitely gave a decent amount of throttle response as said it would, now it’s not overwhelming but u will definitely feel the difference when u get moving for sure . So to me it’s a nice add one especially if u have other upgrades already.
JC
2025-05-22 12:48:47
Easy installation and fast shipping. I can tell the difference it makes on gas mileage and power. I also like the whistle sound it makes while going through the gears. Great product, and easy upgrade for your truck 👌
Mario moreno
2025-04-15 13:07:34
I feel it works especially if you use it with other components..... I am running it with a SB COLD INTAKE & a CATBACK FLOW FX exhaust system and about to add a set of BBK Headers but I have notice a small gain in my MPG......eventually it will pay for itself in the long run but don't expect magic and crazy gains once you install it ..... also clean your throttle body will you have the chance
Rod Westaway
2025-04-10 14:22:09
Item is self explanatory and easy to install. Noticing improvement in bottom end power. Automatic transmission shifts smother.
Fahad AlOmran
2025-03-31 11:49:47
في الوصف تم ذكر انه يزيد ٨ احصنة و التورك ١٢ وبعد التركيب قد تبين انه قلل من الاحصنه الى ٧حيث ان السبب مدخل الهواء اصغر من البوابةكان خدعة حين شرائة ولا يستحق دفع المبلغ الذي دفعه فيه
Fred
2025-03-17 13:07:04
As described, easy to install and arrive with no problems. Will order from this store again. Thank you.
Customer
2025-01-21 17:28:05
Seems like a good part but no gasket included
Rylan
2025-01-18 18:16:47
Quick and easy installAdd more get up and go with my air intake