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EFI Express

4.7

About this business

European and domestic high performance tuning, service, and repair. 

Location details

20 Rescue Ln, Somersworth, NH, 03878, United States

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WeekdayScheduleStatus
Mon9:00 a.m. to 5:00 p.m.
Tue9:00 a.m. to 5:00 p.m.
Wed9:00 a.m. to 5:00 p.m.
Thu9:00 a.m. to 5:00 p.m.
Fri9:00 a.m. to 5:00 p.m.
SatClosed
SunClosed
4.785 reviews
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Ben Shaw's profile image
Ben Shaw 
on Google
a month ago

Although my H6 EZ36 Subaru legacy isn't German their experience with German vehicles gives them more of an edge on my car than some Subaru "specialist" who never really touched this style of engine & that's why I like efi. These guys swapped in a new engine with 31k, fixed the subframe, mounted new tires and rims, r&r all my old parts from the old engine to the new one when the new block came in with nothing on it for free, they have been listening to my every concern with the engine after installing it and are always more t... read more

Dil Fitz's profile image
Dil Fitz 
on Google
a month ago

The team at EFI is nothing short of incredible. They can do it all; with detail, precision, and humility. Had a ton of work done to my A6 TDI including a mean stage 1 tune, full front suspension upgrade and transmission service. Was so happy with that, went for a Stage 1 ECU mapping on my S63 AMG. Both sensitive and uncommon platforms to modify. The gains were immediately apparent! Throughout my communications with the service managers and owner, it became clear those numbers were backed by real experience as well. True enth... read more

Ronald Dumont's profile image
Ronald Dumont 
on Google
a month ago

No, they sucked. Did not clearly state they were guessing my ABS module was bad in my 93 S4 and ABS still inopp after replacement of my original ABS module. $1000 ultimately wasted. 

Tom Murry's profile image
Tom Murry 
on Google
2 months ago

Purchased a car listed by EFI Motorsport on BAT and flew in to collect it. Car was exactly as described by Marc and performed flawlessly on the 750+ mile drive home. Looking forward to doing more business with them in the future! Thanks again! 

Asa Frankowski's profile image
Asa Frankowski 
on Google
4 months ago

Excellent service and very knowledgeable. My car would be a lawn ornament without Mark and his team. 

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Frequently asked questions about EFI Express

How is EFI Express rated?

EFI Express has a 4.7 star rating with 85 reviews. 

When is EFI Express open?

EFI Express is closed now. It will open tomorrow at 9:00 a.m. 

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