Exhaust

Exhaust is an important part of the car’s engine and sound system. A good exhaust system helps the engine get rid of exhaust gases efficiently and can also change the car’s sound, flow and appearance.

When choosing an exhaust, it is important to look at pipe diameter, material, fitment, sound level and whether the part suits the car’s use. Stainless steel is a popular choice, as it provides good durability and resistance to heat, moisture and rust.

Whether you want better flow, a more sporty sound, a nicer finish or parts for a custom-built exhaust, you can find relevant exhaust parts for your project here.

Frequently asked questions about sports exhausts (click to open)

What is a sports exhaust – and what is the difference between cat-back, axle-back and full system?

A sports exhaust reduces restriction and changes the sound character. Axle-back: rear silencer/tailpipe. Cat-back: from the catalytic converter and backwards (mid-pipe + rear silencer). Full system: the entire pipework and often manifold/downpipe.

How much power can I expect from a sports exhaust?

It depends on the engine and setup. N/A engines often see smaller gains, while turbo engines typically gain more under high load—especially with a downpipe and correct CHIP tuning.

Which pipe diameter suits my power goal?

Guideline pipe diameter: up to ~300 hp = 2.5" (63.5 mm); 300–500 hp = 3" (76 mm); higher power may require 3.5"+. Choose according to flow requirements, space and noise limits.

Centre silencer (resonator) vs. rear silencer – how does it affect the sound?

A centre silencer reduces resonance/drone and cleans up the tone. The rear silencer shapes the character (deep/sharp). Without a centre silencer, you get more volume and sound, but more resonance in the cabin.

How do I avoid resonance at motorway speed?

Use a centre silencer/resonator, correct pipe diameter and good mounts. Larger silencer volume and X-pipe/Y-pipe can also help.

Universal vs. model-specific sports exhaust – what should I choose?

Model-specific: Bolt-on and quick installation.
Universal: Maximum freedom for sound/flow, but typically requires welding/clamps and adaptation. Often cheaper.

Which material should I choose – SS201/304/409 stainless steel or titanium?

SS304: very good corrosion resistance and nice finish.
SS201: slightly lower corrosion resistance, nice finish.
SS409: robust and cost-effective, develops surface rust over time.
Titanium: very light/high-end, but expensive and requires correct welding.

Clamps, V-band and flex – what do you recommend for installation?

V-band for tight, service-friendly joints (for example turbo/downpipe). T-bolt/U-bolt is fine for mid/rear sections. Flex pipes reduce vibrations and cracking.

Does the car need tuning when I install a sports exhaust?

Rear silencer and cat-back normally do not require tuning. Downpipe/catalytic converter changes on turbo engines should be matched with ECU calibration for correct mixture and EGT.