Scorpion Cat Back Exhaust System - SAU040

Name: Scorpion Cat Back Exhaust System - SAU040
Brand: Scorpion
SKU: ixv5lhkieh
Availability: InStock

The Scorpion Cat Back Exhaust System is engineered to balance performance gains with ease of insta...

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SAU040 Scorpion Exhaust fits Audi TT Mk1 180/225 Quattro 99-06 Cat Back System

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Demon Tweeks"Scorpion 2.75" Cat Back Exhaust System" - 2x 100mm Round Daytona Polished Tailpipes

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Product Information

Full details

The Scorpion Cat Back Exhaust System (SAU040) is an ideal performance upgrade for Audi TT 1.8T Quattro (8N) owners looking to improve throttle response and exhaust tone without sacrificing daily drivability. By replacing the restrictive factory exhaust from the catalytic converter rearward, this system optimizes gas flow to unlock hidden engine power. While it offers a more refined, performance-oriented sound, users should note that this upgrade is designed specifically for the 8N chassis and may not fit other Audi models.

All features

Model Part Number	SAU040
Brand	Scorpion

Extended Product Information

FAQs

Will this exhaust pass an MOT test?

Yes, because the system retains the factory primary catalytic converters, it is designed to meet standard emissions testing requirements.

Does this require ECU remapping?

No, a remap is not strictly necessary as the system is designed to work within the parameters of the stock engine management.

Is this system compatible with front-wheel-drive TT models?

No, the SAU040 model is specifically engineered for the Quattro (all-wheel-drive) version of the 8N Audi TT.

What tools do I need for installation?

You will need a basic metric socket set, an exhaust hanger removal tool, and jack stands to safely raise the vehicle.

Will this increase the interior cabin noise significantly?

It provides a more pronounced, sporty note, but it is engineered to avoid excessive cabin drone compared to unrestricted straight-pipe systems.

Troubleshooting

Exhaust alignment is off-center at the rear bumper.

Loosen the mounting clamps slightly, adjust the positioning of the tailpipes to center them in the cutout, and re-tighten the hardware.

Audible rattle or vibration under the car.

Check all mounting hangers and ensure no part of the pipe is making contact with the vehicle chassis or subframe.

Minor exhaust leak at a joint connection.

Ensure the sleeve joints are properly seated and re-apply heat-resistant exhaust assembly paste to improve the seal.

Pros and Cons

Pros

Durable T304 stainless steel construction
Maintains MOT and emissions compliance
Improves throttle response
Direct fitment for Audi TT 1.8T Quattro
Enhanced, sporty exhaust tone

Cons

Specific to the 8N chassis only
Requires professional or experienced DIY installation
Increased volume may not suit all driver preferences

Setup, Compatibility & Care

This system is a bolt-on replacement, but proper installation is critical for long-term performance. It is compatible exclusively with the Audi TT 1.8T Quattro (8N). We recommend using high-quality exhaust paste at joint connections to ensure a complete, airtight seal. To maintain the finish and structural integrity of the T304 stainless steel, periodically inspect the hangers and clamps for signs of loosening or vibrations. Cleaning the exhaust tips with a specialized stainless steel polish will prevent surface oxidation and keep the system looking as good as it performs.