Flow, sound & power
Sport Catalyst & Downpipe
Designed to improve horsepower and torque, giving your car the extra kick it needs. Larger-diameter, high-flow parts that improve exhaust flow and add real power.
Why upgrade
Top-quality parts, real gains.
You can trust that you are getting top-quality parts designed to take your vehicle to the next level. Every sport cat and downpipe is matched to your car and fitted in-house.
More power & torque
Sport cats and downpipes free up exhaust gases, giving your car the extra kick it needs on the road.
Better exhaust flow
Larger-diameter downpipes flow more than stock pipes, reducing back pressure and improving turbo response.
A richer sound
A high-flow downpipe adds depth and aggression to your exhaust note, especially when paired with a custom system.
Know the difference
Sport cat vs. downpipe.
Both improve how your engine breathes, but they serve different goals. Here is how they compare so you can choose the right route for your car.
Feature
Sport catalytic converter
Downpipe
Purpose
Sport catReduce emissions while improving performance.
DownpipeImprove exhaust flow and increase horsepower.
Location
Sport catAfter the manifold, before the catalytic converter.
DownpipeBetween the exhaust manifold and catalytic converter.
Diameter
Sport catTypically similar to the stock catalytic converter.
DownpipeTypically larger than the stock pipes.
Emissions
Sport catDesigned to reduce emissions.
DownpipeMay or may not affect emissions.
Power & torque
Sport catDesigned to increase horsepower and torque.
DownpipeDesigned to increase horsepower.
Hear it in action
Project: BMW X3 M40i.
Experience the ultimate upgrade with a 200cell downpipe and stage 2 remap. These enhancements unlock the engine's full potential, for more power and a far more aggressive sound.
Combine with
Get the most from your build.
Combining a sport catalyst or downpipe with other Heinz services helps to optimise the performance of your vehicle.
Custom exhaust system
Looking to improve performance and sound even more? Consider adding a custom exhaust system tailored to your car.
What we offerEngine tuning
A stage 2 tune is often necessary to achieve the best results when installing a sport cat or downpipe.
Learn moreSuspension & handling
Improve overall performance and handling, making your car faster and more agile on the road and on track.
Heinz on TrackSuspension upgrades
Pair your downpipe with a suspension upgrade for sharper handling and a more planted feel on the road.
Explore suspensionRecent work
Built to flow, fitted to last.
A glimpse of the downpipes and sport cats fitted in our workshop, finished with obsessive attention to detail.
Ready when you are
Unlock more power and sound.
Tell us what you drive and we will advise on the right sport catalyst or downpipe, the gains to expect, and whether a stage 2 remap is the perfect partner.
Request information or pricing
Tell us about your downpipe project.
Tell us what you drive and the power and sound you are after. Our team will contact you with the right advice, options, and pricing.