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Happy Labor Day from Extreme PSI
We will be closed Monday,  Sept. 1st in observance of the Holiday. Any orders received
on this date will be processed and shipped Tuesday, Sept. 2nd Thank you!

Manual
Go Fast Bits : Atomic Sungle Stage Boost Controller
Go Fast Bits : Atomic Sungle Stage Boost Controller
Retail price: $77.04
Our price: $69.34
save 10%
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Go Fast Bits : Turbofuse Overboost Protection
Go Fast Bits : Turbofuse Overboost Protection
Retail price: $199.00
Our price: $179.10
save 10%
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Turbosmart Boost Tee Boost Controller
Turbosmart Boost Tee Boost Controller
Retail price: $92.69
Our price: $83.42
save 10%
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Turbosmart Dual Stage Boost Controller
Turbosmart Dual Stage Boost Controller
Retail price: $229.99
Our price: $206.99
save 10%
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Turbosmart In-Cabin Boost Controller
Turbosmart In-Cabin Boost Controller
Retail price: $154.49
Our price: $139.04
save 10%
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Vibrant Performance Manual Boost Controller with Adjustment Key: Black Anodized
Vibrant Performance Manual Boost Controller with Adjustment Key: Black Anodized
Retail price: $83.95
Our price: $71.09
save 15%
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Boomba Racing Inline Manual Boost Controller
Boomba Racing Inline Manual Boost Controller
Our price: $74.00
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Boomba Racing Manual Boost Controller
Boomba Racing Manual Boost Controller
Our price: $48.00
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Forge Motorsport UNOS Boost Controller
Forge Motorsport UNOS Boost Controller
Retail price: $110.00
Our price: $85.00
save 23%
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GrimmSpeed Manual Boost Controller
GrimmSpeed Manual Boost Controller
Retail price: $109.99
Our price: $96.79
save 12%
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HKS VBC Boost Controller
HKS VBC Boost Controller
Our price: $90.00
Out of stock
PERRIN Performance Manual Boost Controller
PERRIN Performance Manual Boost Controller
Retail price: $110.00
Our price: $99.99
save9%
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Hallman -4AN Fittings (Inlet/Outlet)
Hallman -4AN Fittings (Inlet/Outlet)
Our price: $6.00
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Hallman ES Boost Controller Kit *SALE*
Hallman ES Boost Controller Kit *SALE*
Retail price: $80.00
Our price: $54.95
save 31%
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Hallman Pro Cockpit Controller Add-On Kit *SALE*
Hallman Pro Cockpit Controller Add-On Kit *SALE*
Retail price: $80.00
Our price: $51.00
save 36%
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Hallman PRO Boost Controller Kit *SALE*
Hallman PRO Boost Controller Kit *SALE*
Retail price: $110.00
Our price: $79.95
save 27%
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Hallman PRO RX Boost Controller Kit *SALE*
Hallman PRO RX Boost Controller Kit *SALE*
Retail price: $125.00
Our price: $87.95
save 30%
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Hallman EVOLUTION Boost Controller Kit *SALE*
Hallman EVOLUTION Boost Controller Kit *SALE*
Retail price: $170.00
Our price: $138.95
save 18%
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Hallman EVOLUTION RX Boost Controller Kit *SALE*
Hallman EVOLUTION RX Boost Controller Kit *SALE*
Retail price: $185.00
Our price: $156.95
save 15%
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Hallman EVOLUTION Boost Controller: Mitsubishi Lancer EVO VIII & IX Specific Kit *SALE*
Hallman EVOLUTION Boost Controller: Mitsubishi Lancer EVO VIII & IX Specific Kit *SALE*
Retail price: $170.00
Our price: $134.95
save 21%
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Turbo XS Standard Boost Controller
Turbo XS Standard Boost Controller
Retail price: $85.00
Our price: $65.00
save 24%
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Turbo XS High Performance Boost Controller
Turbo XS High Performance Boost Controller
Retail price: $135.00
Our price: $100.00
save 26%
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Turbo XS Dual Stage Boost Controller
Turbo XS Dual Stage Boost Controller
Retail price: $249.00
Our price: $185.00
save 26%
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Turbo XS High Performance Dual Stage Boost Controller
Turbo XS High Performance Dual Stage Boost Controller
Retail price: $269.00
Our price: $199.95
save 26%
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