SKU: 63567191130

14mm Top Feed Injector Adaptors for Nissan RB25

Sale price$58.00 Regular price$64.44
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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

14mm Top Feed Injector Adaptors for Nissan RB25Set of six adaptors to fit 14mm top feed injectors to RB25DE and RB25DET intake manifolds. The injector adaptors use a Viton o ring to seal into the Nissan RB25 intake manifold, and have a 14mm bore to suit aftermarket 14mm top feed injectors. Replacement of the standard side feed injectors with aftermarket top feed injectors is common practice as top feed injectors are available in a wider variety of flow rates and are considerably cheaper. The six

Set of six adaptors to fit 14mm top feed injectors to RB25DE and RB25DET intake manifolds.

The injector adaptors use a Viton o-ring to seal into the Nissan RB25 intake manifold, and have a 14mm bore to suit aftermarket 14mm top feed injectors. 

Replacement of the standard side feed injectors with aftermarket top feed injectors is common practice as top feed injectors are available in a wider variety of flow rates and are considerably cheaper.

The six adaptors are CNC machined from billet 6061 aluminium at our factory in Napier, New Zealand, and are black anodised for corrosion resistance.

An aftermarket top feed fuel rail is required to be used with these adaptors. The injector adaptors replace the flat, round factory injector lower seal and fit directly into the 25.6mm bore on the RB25 intake manifold. Please note that some aftermarket intake manifolds have different sized machining and often a sharp edge which can make the o-rings tight and harder to install. It is recommended to check the size on an aftermarket manifold, as well as hand chamfering the top edge of the injector seal port to prevent damage to the o-rings on installation. 

Sold in sets of 6.

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Exchange/Return Notes
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SKU: 63567191130

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Jack Swidecki
Natrona Heights, US
★★★★★ 5
Worth the buy
Style: 30 pcs, Style: 30 pcs
Put in my 1991 f250 super cab and it did the whole bottom and then some. Works spectacularly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
J
Verified Purchase
james
Omaha, US
★★★★★ 5
Would recommend
Size: 10 sqft
I used this sound deadening material in my car during an audio and interior upgrade, and the difference was noticeable immediately. Road noise, vibrations, and rattling were reduced a lot, especially on the doors and floor panels. The car feels much quieter and more solid while driving now. The material was easy to cut and apply, and the adhesive stuck very well without peeling up. It has a quality feel to it and conforms nicely around curves and tight areas. I also noticed my speakers sound cleaner and have better bass response after installing it. For the price, this sound deadening material is a great value and definitely worth it if you want a quieter ride and better overall sound quality in your vehicle.
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Reviewed in the United States on June 6, 2026
D
Verified Purchase
David
West Palm Beach, US
★★★★★ 5
Worth it!
Size: 50 sqft
I was worried it wouldn't work as well since it's 50 mil and I thought I got the wrong thing. Nope! Works great. Did all four doors on my 93 civic and I have enough for the floor I think. Solid price. Noise reduced by about 5 decibels hive difference. Very sticky and easy to apply I'm so happy I was able to cover most all of my car. If I need more, definitely buying this since I got so much extra and I thought I would. PS: that five decibel thing is only with the four doors. My firewall is next and then my floor, but it's such a huge difference
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Reviewed in the United States on April 2, 2026
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Verified Purchase
Teresa A. Patterson
Boise, US
★★★★★ 5
Quiet your vehicle noises
Size: 50 sqft
Put this in our high roof van and couldn’t believe how much quieter it was at once. Really cut down on the vibration noise Nice and easy to install just peel n stick. Was also easy to cut with scissors for smaller areas. Seemed to be really nice quality. Didn’t notice any odor.
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Reviewed in the United States on June 9, 2026
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Verified Purchase
Stephanie
Battle Creek, US
★★★★★ 5
Sound deadening the Hot Rod
Size: 20 sqft, Size: 20 sqft
Works well, good value for the money. It’s very sticky and conforms to what you are applying it to. One 20 sq ft box did approximately the passenger side
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Reviewed in the United States on April 3, 2026

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