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EFI Connection LLC

EFI Connection LLC

30K items sold
825 followers
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About us

We specialize in GM fuel injection systems for SBC, LT1, and the variety of LS engines. Since 2003 we have been manufacturing brand new fuel injection engine harnesses and connector pigtails for GM engines and offering replacement harness components for GM fuel injection harnesses.

Modernize Your Early SBC, TPI, or LT1/LT4 Engine
Our 24x systems and 58x systems bring Gen III LS1 PCM control and Gen IV LS3 ECM control to these popular engines. Our 24x solution is the only replacement to the troublesome LT1 optispark distributor and has enabled amazing potential for these engines; even 8,000 rpm capabilities!
Location: United StatesMember since: May 12, 2013Seller: eficonnectionllc
Top Rated SellerEFI Connection LLC is one of eBay's most reputable sellers. Consistently delivers outstanding customer service Learn more

Feedback ratings

Last 12 months

Positive404- positive feedback in last 12 months
Neutral1- neutral feedback in last 12 months
Negative1- negative feedback in last 12 months

Detailed seller ratings

Average for the last 12 months
Accurate description
5.0
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

Seller feedback (7,212)

  • r***r (87)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Product arrived in original packaging in brand new condition, as described in the ad. Shipping was fast and arrived ahead of schedule. Communications with EFI Connection LLC was above average and response was within 1-2 hours. I will repeat business with this seller. LS Swap Benchtop ECM Harness- build was a success using this OBD II connector.
  • n***a (354)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    EFI Connection sent the wrong part and after communicating with them and sending the part back for a refund, I was able to re-order the part and have them ship the correct one. I see no reason for a bad review. Things happen and were quickly taken care of.
  • e***e (434)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    On time, safely packed, as described, perfect fit, great price, good seller.
  • l***l (587)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Item as described. Fast shipping. Well packed. Good person to deal with.A++++++++++
  • s***e (42)- Feedback left by buyer.
    Past month
    Verified purchase
    Great Seller... Fast Shipping, and item was just as described.
  • m***m (72)- Feedback left by buyer.
    Past month
    Verified purchase
    A+ seller, super-fast delivery, as described, exactly what I needed. Perfect 👍
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About us

Use this space to tell other eBay members about yourself and what you’re passionate about. Give people more reasons to follow you!620/1000