Lou’s custom exhaust is located in:

Did you know we do Remote Starts, Brakes, lighting kits and lot more?

At Lou’s Custom Exhaust of Hyannis, Plymouth, Quincy, and Westport we do more than just exhaust work We also do brake work along with brakes, lighting kits, remote starters, and other under car repairs. We give free brake inspections and our technicians find your brakes need attention we can usually fix it the same day! Here is some information about our services:


The only thing better than a car that goes is a car that stops. Routine inspections keep your vehicle stopping safer, longer. How often you have to change your brakes depends on a lot of things driving conditions, rotor thickness, quality of brake pads, and more. A routine brake inspection makes certain that your braking system is safe.

Lou’s Custom Exhaust is proud to offer free brake inspections at the Hyannis, Plymouth, Quincy, and Westport locations. Our professional technicians will visually assess your brakes to determine if any service or repairs are needed.

A few signs your brakes might need service or replacement:

  • Brake pedal is low or spongy (goes to the floor when pressed)
  • Brake pedal is hard to depress (won’t go down at all)
  • Brake service warning light stays lit at all times
  • Squealing or grinding at stop

So if you are experiencing any of these symptoms please call or swing by one of our shops for a free estimate.


We are now installing LED lighting kits for vehicles made by HEISE.   We are installing them in all 4 shops locations; Plymouth, Quincy, Westport, and Hyannis.    Here are some links to what is available and some photos of a Jeep Wrangler we did in Plymouth.

Main Page

LED Technology

Product Testing


We will be installing remote car starters by Fortin starting in the Spring of 2017.  We are starting at our Plymouth location and plan to bring it to all 4 shops in Plymouth, Quincy, Westport, and Hyannis.

Fortin Electronic Systems is born from a real desire to build products and solutions that will help vehicle aftermarket electronic installers to perform easier and faster installations. Over the last decade, our dedication to innovation combined with our strong expertise in multi-level car integration drove us to deliver the most reliable and cost-effective interface and remote starter platforms on the market. Today, with the evolution of connected vehicles a new era is on the horizon and our team embraces the challenge of setting the bar in fast installations.

Here is a link to some of their kits:  Fortin Remote Starters

If you are interested in any of our services give us a call today!

Hyannis 508-771-2500
Plymouth 508-746-3500
Quincy 617-773-6500
Westport 508-646-1500

Free Check Engine Light Diagnostics

Free Check Engine Light Diagnostics Including Video

Since 1995, all vehicles have been equipped with an OBDII port, in which you can use a scan tool/code reader to see what is wrong with your vehicle. The ECU or Computer in your vehicle is actually receiving data from a variety of different sensors to make sure everything is working properly and in sync. We also have a video on youtube if you want to see a quick example.

Even if the code may not be exhaust related, Lou’s Custom Exhaust can still scan the computer’s codes on your vehicle free of charge and quickly.

The most common codes seen are the catalytic converter low efficiency (P0420), Oxygen Sensor codes, and EVAP codes (Leak in the evaporative emissions system).  Once the problem is fixed, the code can then be erased.

If you are getting the problem fixed to shut the light off for a state inspection you will have to drive about 100 miles.   This is because it takes about 100 miles for the car’s computer to recognize the problem is fixed and change its status from “Not Ready (code manually cleared)” to “Ready”.    This is something that is key for Massachusetts annual vehicle inspections.

So if you are having trouble swing on by our Hyannis, Plymouth, Quincy, or Westport shop and we can let you know what is going on!

Hyannis 508-771-2500
Plymouth 508-746-3500
Quincy 617-773-6500
Westport 508-646-1500