Swap the factory rubber intake pipe for a rigid polished aluminium tube. Sharper throttle feel, stable airflow geometry, cleaner engine bay.
Independent reviews of this product gathered from other stores and owner communities.
Bought this a while ago From RX8 Upgrades KTS Instake Suction Tube. I was sceptical this little thing can change the car. But boy i was wrong. I changed A LOT. Car sounded way louder, you can really hear it. More throttle response. Intake sounds way louder too. It was all worth it. 🫶🫶
Trip from Sunshine Coast to Gold Coast was a blast ! Car feels so much better, so much more throttle response, so much cooler. Highly recommend changing Autoexe Type F radiator+KTS Suction Tube+ODULA Ram air 🫶🫶🫶🫶 ARD High speed starter motor makes cold start+hot start lightning fast. Supplied by RX8 Upgrades 🔥🔥
$250
This RX8 intake tube upgrade replaces the factory rubber intake pipe with a rigid, smooth-bore polished aluminium tube designed for the Renesis engine. It suits every Mazda RX8 from 2003 to 2012 and requires no modification to fit. An ageing rubber hose flexes and loses shape under heat and vacuum. This KTS induction suction tube holds its geometry at every throttle position.
For RX8 enthusiasts, the Renesis responds with real crispness on the climb to the redline after this intake tube swap. Low-down torque feels more accessible. The intake note deepens in a way that helps you read the engine’s power point. The soft factory hose never quite delivered that directness.
To complete the intake system, pair this RX8 intake tube upgrade with the GENUINE MAZDA OEM MAF Sensor, which ensures accurate airflow measurement with a known-condition sensor. The AUTOEXE Intake Suction Kit suits owners wanting the distinctive red silicone finish and a fully branded AUTOEXE build. Both share the same factory-airbox-retained philosophy. More detail on KTS intake products is available at the KTS official website.
Independent reviews of this product gathered from other stores and owner communities.
Bought this a while ago From RX8 Upgrades KTS Instake Suction Tube. I was sceptical this little thing can change the car. But boy i was wrong. I changed A LOT. Car sounded way louder, you can really hear it. More throttle response. Intake sounds way louder too. It was all worth it. 🫶🫶
Trip from Sunshine Coast to Gold Coast was a blast ! Car feels so much better, so much more throttle response, so much cooler. Highly recommend changing Autoexe Type F radiator+KTS Suction Tube+ODULA Ram air 🫶🫶🫶🫶 ARD High speed starter motor makes cold start+hot start lightning fast. Supplied by RX8 Upgrades 🔥🔥
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Related RX8 Upgrades
The KTS induction suction tube is a direct-fit replacement for all Mazda RX8 models from 2003 to 2012, covering both Series 1 and Series 2. No modification is required for installation.
The factory rubber hose can deform, collapse or distort as it ages, particularly under heat and vacuum, which changes the geometry of the intake path. The rigid aluminium tube maintains a consistent, smooth-bore shape at every throttle position, which is where owners typically notice improved throttle feel.
Owners supplied through RX8 Upgrades report a pleasing, immediate improvement in throttle feel after fitting the KTS suction tube. The improvement is most noticeable on the climb to the redline, where the Renesis responds with a crispness the soft factory hose could not consistently deliver.
Josh at RX8 Upgrades rates the KTS tube as his bang-for-buck pick in this category, with real-world performance feel very likely similar to the dearer AUTOEXE kit. The AUTOEXE Intake Suction Kit appeals mainly to owners who want its distinctive red silicone appearance as part of a broader AUTOEXE-themed build.
No. The KTS induction suction tube is designed to work with the retained factory Mazda airbox. Josh's preferred approach pairs this tube with ODULA ram-air components while keeping the factory airbox, delivering a strong proportion of the feel of a full aftermarket intake system without replacing a well-designed component that does not need it.
Josh recommends combining this tube with ODULA ram-air parts, the ODULA Fresh Air Grille (Carbon Fibre) for cooler ambient air intake, and a Genuine Mazda OEM MAF Sensor to ensure accurate airflow measurement with a known-condition unit. Together these parts complete a neat, factory-airbox-retained intake build.
The KTS induction suction tube is a direct replacement for the factory rubber intake pipe and requires no modification to fit any 2003 to 2012 RX8. It is a straightforward swap suitable for a competent home mechanic.
The tube features a high-gloss polished aluminium finish that makes an immediate visual impression in an otherwise standard engine bay. It adds a purposeful, quality appearance without looking out of place alongside factory components.
