Skip to main content
EFI Connection LLC

EFI Connection LLC

31K items sold
858 followers
Contact

Shop by category

EFI Connection LLC
All categories

Engine Hardware

See All

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 13, 2013Seller: eficonnectionllc

Feedback ratings

Last 12 months

Positive571- positive feedback in last 12 months
Neutral1- neutral feedback in last 12 months
Negative0- 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 (7,526)

  • h***9 (877)- Feedback left by buyer.
    Past month
    Verified purchase
    New in package as described. Packed securely and shipped quickly A ++
  • 8***l (1272)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Exactly as described, well packed, shipped fast.
  • f***e (90)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Accurate description of item, attentive and responsive with communication, and expedient shipping.
  • r***r (87)- Feedback left by buyer.
    Past year
    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.
  • u***c (1378)- Feedback left by buyer.
    Past month
    Verified purchase
    Excellent ebayer quick delivery considering the distance, nice product good price 10/10
  • k***u (56)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Great Seller... Fast Shipping, and item was just as described.
See all feedback

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