What To Look For In A Triumph Exhaust

If you are in the market for an aftermarket exhaust to install on your Triumph, you should consider the following factors; Performance, Sound, Materials, and Aesthetic. These are the factors we consider when designing our Exhaust. After reading this article you should be able to make the right decision on an Aftermarket Exhaust for your Triumph.



  • More efficient exhaust output allows the motor to produce more power. A Free flowing but regulated system can achieve this.
  • Back Pressure is important. You want to regulate free-flowing exhaust output with a minimum of back pressure to maintain a high velocity of exhaust output.


To get the most out of a new free-flowing Exhaust you should Increase the amount of air intake. This will likely require you to re-jet or update the ecu mapping on your bike. To assist in these areas see the following guides:

Read: Triumph Modern Classic Tuning Guide



  • A modern classic should not sound "modern." The classic Triumphs of the 1960s were known as performance machines and sounded the part.
  • Consider the amount of Exhaust volume you are comfortable with. Some Exhausts are louder than others.
  • Different muffler shapes produce different sounds; a reverse cone (see Predator Pro) has a classic tone while a henkel cut system (see GP Exhaust) has a more race tone.

Watch sound clips of British Customs Exhaust vs Stock



  • Weight savings is important. Shaving 10lbs off the bike can likely get you +1 HP.
  • Avoid Chrome at all costs! It corrodes and rust when exposed to weather and will require re-chroming
  • Beware of exhaust made of mild steel which is not as durable as Stainless Steel and is susceptible to corrosion. Look for Stainless Steel construction.


Note: All British Customs Exhaust are TIG welded out of 100% 304 Stainless Steel. Stainless contains Chromium (not to be confused with “chrome”) which prevents staining, corrosion, and rust. Stainless is much less malleable than mild steel, making it harder to work with. Also, the price breakdown as of July 18’: $0.39/lb for Mild Steel & $1.76/lb for 304 Stainless Steel on (agmetalminer.com). Stainless is harder to work with and cost more to obtain, but it produces a much higher quality product.



  • It's ok to care about how it looks. That’s why you bought a Triumph right?
  • Pay attention to how its made. Visible welds should be a work of art. Can you see the welds? Do they look good?
  • Does the angle of the mounting position go with the lines of my bike or create a flow?


Bottom Line:

We’ve gone over the criteria that we use when designing our pipes or considering bringing a new brand of Exhaust onto our webstore. Ensuring that you get a better performing, better sounding exhaust that is made to last and look good is a priority to us. When you are spending $500+ (sometimes over $1k) you want to be certain that you are happy with the purchase. That is why British Customs offers our 30 Day Ride Guarantee. Install our pipes & ride for 30 days. If you aren’t satisfied, return them no questions asked!