Your car relies on you to maintain it regularly and not to gun it across any rivers, even if there are free Thickburgers on the opposite bank. Keep your vehicular promises with today's Groupon: for $39, you get two Dyno pulls plus $40 worth of upgrades and general maintenance services (a $140 combined value) at TPS Motorsports, located just off the San Tomas Expressway in Campbell. TPS Motorsports' DynoJet 224x chassis dynamometer calculates a car's horsepower from the rate its drive wheels can spin two large metal drums embedded in the dynamometer's base, which allowed one technician to accurately determine that his Ford GT40 was strong enough to haul home enough steel to finish his life-size Mechagodzilla. Armed with a muscle car's horsepower stats, the TPS mechanics can transform your ride's suspension, seats, and brakes with acceleration-inducing upgrades, or they can perform a basic tune-up on vehicles of any make and model. A half-hour of labor at TPS is typically $40, and a tune-up usually takes about an hour.

Reviews

Nine Yelpers give TPS Motorsports an average of 4.5 stars. More than 400 Facebookers like it.

• Great service, good location, and reasonable prices... – Editor S., Yelp
• Mike and his staff are great - friendly, thorough, and trustworthy. – Ami F., Yelp