4" 90 Degree Boot Black
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Spectre 4" 90 Degree Boot Black

Part No. 9781 Warranty Details  
Quantity  Add to Cart

Fit of this part varies by vehicle & equipment specs Type of Fit

The Spectre Intake Coupler Elbow connects a 4 inch outside diameter component or air intake tube to another 4 inch outside diameter component or intake tube at a tight 90 degree angle. Two stainless steel worm gear hose clamps are included for installation. This coupler is not suitable to be installed on pressurized components such as turbocharger or supercharger outlets.

Product Features:
  • 90 degree coupler connects 4 inch diameter intake tubes
  • Includes coupler and two clamps
  • Small bend radius makes this coupler fit in tight spaces
  • Made from black PVC
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Degree Bend:90 deg
Hardware Included:Yes
Outside Diameter:4 in


by PowerReviews
Spectre4" 90 Degree Boot Black

(based on 1 review)

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Reviewed by 1 customer

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fit 92mm throttle body and 4" tube.


from Palm Bay, FL

About Me Auto Enthusiast, Truck Enthusiast

Verified Buyer


  • Durable
  • Easy To Use
  • High-Performance


    Best Uses

      Comments about Spectre 4" 90 Degree Boot Black:

      replaced stock intake tube when 92mm throttle body installed.

      • Was this a gift?:
      • No

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      Do you have questions about this product?


      Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

      2 Questions | 3 Answers
      Displaying questions 1-2
      • Q:

        Will this fit my 1995 BMW convertible 318i
        Asked on 7/16/2017 by Buttafly from New york

        1 answer



          Hi Buttafly, glad to assist you! This Spectre Intake Coupler Elbow - Part No. 9781 is universal and is not application specific. You would have to match one by size to what is on the vehicle that can be fabricated into its place.

          Answered on 7/19/2017 by Solomon from AAP
      • Q:

        problem: " service engine soon : light came on. codeing is 0171 and 0174 . lean mixture intake. By replacing intake boot ,would that solve the problem ?
        Asked on 10/13/2010 by Pete from Lawrenceville, Ga

        2 answers



          There are many things that could cause a lean mixture. Since we can not be there to properly diagnose what is wrong with your vehicle, we recommend taking your vehicle to a reputable mechanic and letting them take a look.

          Answered on 10/14/2010 by Mike the master of auto parts from AAP
        • A:

          If your current boot is torn that would very likely be the problem and cause a P0171. However if there are no cracks or tears then replacing the boot will not likely have any positive effect. Cleaning your MAF with electronics parts cleaner may also save you some bucks before trying to replace the MAF. Also first check for any vacuum leaks anywhere in the intake plumbing.

          Answered on 10/21/2010 by Roy from Gladstone
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