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Manual Boost Controller Kit, 1-30 PSI Car Universal Adjustable Turbo Charger Closed Loop Turbo Engine Controller

  • Based on 95 reviews
Condition: New
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Availability: 17 left in stock
Fulfilled by Amazon

Arrives Tuesday, Aug 25
Order within 22 hours and 42 minutes
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Features

  • Efficient Boost Control: Our manual boost controller allows precise adjustment of 1-30 PSI pressure, optimizing performance and saving time compared to alternatives.
  • Universal Compatibility: Designed to fit turbo engines, our boost controller boasts a precise design for maximum performance, 4AN connector for 1/4 hose, universal adjustable boost controller for general use in turbo engines.
  • Durable Aluminum Construction: Crafted from high-quality aluminum alloy, our boost controller ensures durability, rust resistance, and long-term reliability for your turbocharged engine.
  • Easy Installation: With included installation accessories and a compact design, our boost controller is simple to install without the need for modifications, saving you time and hassle.
  • Installation Method: Cut off the turbine vacuum tube, install the tee, connect the vacuum tube at one end of the controller, connect the pressure relief valve at the other end, and do a good job of sealing. And then you do debugging. Adjust the screw at the top until the car's idle speed is stable.

Description

Specification: Condition: Brand new Material: Aluminum alloy Color: Black Size: As Picture Show Outlet Type: 4AN Fittings to 1/4 Hose Maximum PSI: 30 PSI Package Weight: 236g Fitment: Universal fit for turbo engines. Package List: 1 Turbo Engine Boost Controller 1 set Installation Accessories

Manufacturer: ‎Caoeal


Brand: ‎Caoeal


Model: ‎Caoealtgz1gouikc


Item Weight: ‎8.4 ounces


Package Dimensions: ‎5.51 x 4.21 x 1.46 inches


Item model number: ‎Caoealtgz1gouikc


Manufacturer Part Number: ‎Caoealtgz1gouikc


Date First Available: April 30, 2024


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Aug 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Great price. Easy install.
Works perfectly! Easy install as its a 2 port. Although it would be nice if it had a diagram of which port does what, as some are actually created differently, but this one is just like all the others. Bottom is source, side is wategate. Came with 2 additional different tiny spring rates. The price is really good. We'll see how long it last. ... show more
Reviewed in the United States on August 18, 2025 by Saul

  • Works as described
Works as described
Reviewed in the United States on April 17, 2026 by Troy

  • Works as Expected
Installed this manual boost controller on my 1991 Volvo 940 SE. Installation was pretty easy. It's holding 10lbs of boost without any issues so far. I was initially skeptical as I've never seen this manufacturer before but I've been using it for a few months, no complaints. It's a basic manual boost controller, and it does the job it's supposed to do. ... show more
Reviewed in the United States on February 20, 2025 by Trevan

  • Good, but could be better.
Easy to install since my Supra never came with a factory boost controller and would only hold 4psi on full throttle and was super laggy getting onto boost. Now, trial and error was the only way to dial in the mbc since there was no instructions nor specs on the spring weight. 9-10psi was my target threshold with 11-12psi being overhead for spikes since this is a ball and spring type controller. After fiddling for 30mins adjusting through quarter/half/three quarter throttle pulls, it kept over boosting past my targets to the point to where I said "F*ck it" and bottomed it out to the lowest setting where you cant twist it any further and it had the results i needed after even more testing. 9psi steady with 10-11 psi peak is the lowest you can do with with product unless you can get a known spec'd spring and replace the built in one. Because the built in one is just too heavy for older stock turbo cars that cant boost too high. Id recommend a lighter spring and ceramic ball bearing to get better results and adjustment. Nevertheless I was able to restore faster spool time and higher boost threshold than factory within relatively safe levels. Im pretty happy of my purchase but wished it had more information on the product itself and a larger diameter hose because it was nearly impossible to shove 5.5mm barb fitting into a 2.5mm opening, he was just too big for her, as they say lol Anyways it was so close onto being a pretty good bang for your buck manual boost controller. ... show more
Reviewed in the United States on October 14, 2024 by Vincent V.

  • No instructions
Only makes 20psi
Reviewed in the United States on April 25, 2026 by Christian Ross-Smith

  • Good seller
Good product Fair price5
Reviewed in the United States on July 3, 2026 by Tom mcdaniel

  • Cummins diesel feedback / tips
I run about 28-25psi with my wastegate set to 20psi. I can't easily get to my wastegate to increase it, and I want the wastegate to stay closed as long as possible. I had to switch out the strongest spring because the spring installed originally was too soft. I only had to turn it about 3/4 a turn from the lowest settings for my truck, and it works very well. I also put some electrical tape around the knob to lock it into place. ... show more
Reviewed in the United States on July 16, 2025 by Total Geek

  • Terrific for the price
Just installed on volvo b230ft with stock turbo, mitsu 13c One full rotation (360*) gained 2psi, approx halfway tightened with original spring and holding 12psi with no spiking so far. One review mentioned lack of a bleed hole, and the unit i ordered does have one on the outlet nip. Seems the manufacturer listened to the reviews, big points to them. Initial impression, this is a great unit for the price. Good luck making your own for $20, let alone one that is this consistent. Ask me how i know. Check in in a few months for durability thoughts. ... show more
Reviewed in the United States on July 7, 2025 by Chris Turner

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