TEC ‘Rocker’ Full Stainless Exhaust System – BSA Gold Star


IMPORTANT – READ BEFORE BUYING – This product is not USA 50 state compatible and cannot be used in the state of California.  The product is strictly for off-road/race/demonstration use only.  It is not road legal for emissions in the EU or the UK.  It is the customers responsibility to use this item responsibly to comply with local laws.  These parts are not BS-marked, E-marked or TUV-approved.

TEC Designed and Manufactured

Inspired Design: Our exhaust system pays homage to the iconic swept-back and megaphone systems that were beloved by the Rockers and Cafe Racers of yesteryears, giving your bike a classic and timeless appearance.

Massive Weight Reduction: Our system weighs 3.3kg.  The stock system weighs 10.7kg.  So, you are shedding a significant 7.4 KG of weight compared to the stock system.  Our system contributes to improved acceleration, handling, and braking by reducing mass. This upgrade enhances your motorcycle’s overall performance.

Perfect Fit and Aesthetic Appeal: Engineered to seamlessly hug your BSA 650 Gold Star, our exhaust is designed to look “just right” on your bike, providing not only enhanced performance but also a stunning visual upgrade.

Authentic Sound: Experience the nostalgia of a 1960s bike with the distinctive and captivating sound produced by our custom exhaust, adding to the overall riding experience.

Designed for Stock ECU: Our exhaust system is designed to seamlessly integrate with your stock ECU system, eliminating the need for retuning. It ensures an easy and hassle-free installation.

Improved Engine Performance: Our exhaust system allows your engine to breathe and rev more freely whilst unlocking its full potential.

Premium Construction: Crafted from high-quality 304 stainless steel, our exhaust system is built to withstand the rigors of the road, ensuring long-lasting durability and performance.

Optional Joint Cover/Heat Shield: Enhance both functionality and aesthetics with the optional polished stainless steel joint cover/heat shield, providing additional protection and a polished finish.  Pictured with and without shield.

Detailed Installation Guides: We provide full written and video instructions, making it straightforward for home mechanics to install the exhaust using basic hand tools. The kit includes all the necessary parts, including gaskets, for a hassle-free installation.

Peace of Mind Warranty: We stand by the quality of our product with a 12-month warranty, ensuring that you can ride with confidence knowing that your investment is protected.


Note: Please be aware that this exhaust is not E marked or TUV approved.

Customer Reviews

Based on 10 reviews
Rick Griffiths
Rocker exhaust

As usual fantastic value for money looks good, sounds good, can't fault anything TEC bike parts makes thank you ????

Andy Negus

Easy to fit. Good quality and value. Looks much better than the standard exhaust.
Tail tidy easy to fit and also good quality.

Michael Ashton
Rockin Rocker

Sorry for delay, only fitted it on Saturday. Went for a ride yesterday and the bike ran and sounded fantastic. Brilliant piece of kit, I love it.

geoff mcnulty
Great mod for the BSA

This is a great modification to myBSA.it’s easy to fit sounds great. Has made a big difference from a performance and handling point of view. It also looks and sounds great. The price is great too. Very happy with this exhaust Regards Geoff

Michael Oldridge
Rocker Exhaust System

A very nice system and at a good price. Easily fitted after following the instructions both printed and on the video. Looks and sounds good. The downpipe does brown with heat but I do not see that as a problem and the advice to leave off the superfluous cooling fins originally fitted is good.