603 Performance and Maintenance of Londonderry LLC

07/31/2026

Decreased the altitude on this nice zo6.

07/14/2026

We have a third party undercoating company coming to the shop the week of 10/5. Making a list of people interested. He uses NH oil, does a very good job. Pricing as follows

Cars $235
Small SUV $250
Midsize suv $300
Full-size trucks $375

+3% for CC.

Shoot me a message if you're interested.

05/19/2026

Blast from the past, working in the 2000s today

01/28/2026

🚨BREAKING NEWS🚨 Vehicle inspections in New Hampshire will continue for now after a federal judge issued a preliminary injunction preventing a law that would halt inspections from taking effect.

BREAKING NEWS: Vehicle inspections in New Hampshire will continue for now after a federal judge issued a preliminary injunction preventing a law that would halt inspections from taking effect: https://www.wmur.com/article/injunction-new-hampshire-vehicle-emissions-tests/70173940

10/31/2025

The Laflamme Family Truckster is ready for Halloween after a few last minute repairs.

04/25/2025

Dan's 22 Challenger came in for a whipple supercharger, HP tuners unlock and a tune. 50% power increase over stock, certified ripper.

04/16/2025

Another built STI done, broken in and out the door. Good driver but still hauls the mail.

603 longblock w/gsc valvetrain and s2 cams
Ets FMIC
Id1050s
FP Blue

03/08/2025

Ncis longblock got this Sti back on the road.

03/08/2025

Somehow forgot to post this nice unit. Custom spec Work wheels, r888s, suspension adjust and a Few house keeping items.

03/08/2025

Little drop with rear bags on Devon's Denali.