The TOWMA Valved Axleback Exhaust System for the Audi R8 V10 transforms your R8's driving experience with a brutal V10 sound, high-quality workmanship, and complete control over volume and character. Made of T304 stainless steel with an integrated valve system, this axleback combines maximum performance with an OEM+ fit.
Advantages
- Valved system — full control from refined to maximum V10 sound
- T304 Stainless Steel — High-quality stainless steel for durability
- Weight savings — lighter than OEM system
- Deep, raw V10 sound — aggressive and characteristic R8 character
- OEM+ fit — seamless installation without modifications
- TIG welded — high-quality construction for optimal flow
- Polished finish — premium look
Material & Construction
The TOWMA axleback system is manufactured from T304 stainless steel — a high-quality stainless steel alloy that offers excellent corrosion and heat resistance.
Why T304 stainless steel?
- Superior corrosion resistance — no rust
- Heat resistant up to 500°C
- Durable and low-maintenance
- Excellent value for money
- Classic sporty exhaust sound
The system is fully TIG-welded for optimal flow and durability. Each weld is handcrafted and inspected for perfect quality.
The polished finish gives a high-quality, premium look that perfectly suits the character of the R8.
The integrated valved system uses electronically controlled valves:
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Valves closed: Refined cruise mode for everyday use
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Valves open: Maximum V10 sound experience
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Integrated with R8 drive modes: Works with Comfort/Auto/Dynamic/Individual modes
Sound & Performance
Sound character:
The TOWMA axleback allows the naturally aspirated 5.2L V10 to fully exploit its full potential:
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Idle (valves closed): Deep, menacing V10 growl
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Idle (valves open): Aggressive, erratic, intimidating
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Acceleration: Screaming V10 with high-rpm scream
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High revs: Deafening, racing-level sound (8000+ rpm)
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Deceleration: Pops, bangs and cracklings
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Downshifts: Aggressive backfire
Performance:
- Weight saving: 8-12kg compared to OEM
- Power gain: 5-8 hp (due to better flow)
- Improved throttle response due to lower back pressure
- Better throttle response
Note: This system is LOUD with the valves open. Perfect for track and spirited driving, but consider your surroundings for everyday use.
Installation & Assembly
The axleback system is designed for plug-and-play installation on the original Audi mounting points.
Installation steps:
- Lift the R8 onto the lifting bridge
- Remove original axleback system (2 bolts at midpipes, 4 hangers)
- Install TOWMA axleback with supplied gaskets
- Connect valve actuators to OEM wiring
- Test valve functionality in all drive modes
- Check for leaks and alignment with bumper
Installation time: 2-3 hours for an experienced technician
Recommendation: Professional installation by an authorized Audi specialist or performance shop is recommended for perfect alignment and valve functionality.
Compatibility
Suitable for:
- Audi R8 V10 (2016-2023) — 2nd generation
- Audi R8 V10 Plus (2016-2018)
- Audi R8 V10 Performance (2019-2023)
- Audi R8 V10 RWD (2018-2023)
- Audi R8 V10 Spyder (all variants 2016+)
Compatible with:
- RWD and AWD versions
- Coupe and Spyder
- OEM midpipes
- Aftermarket downpipes and midpipes
Not suitable for:
- Audi R8 V8 (2007-2015) — 1st generation
- Audi R8 V10 (2007-2015) — 1st generation
Note: This is only for the second-generation R8 (2016+). Check your model year before ordering.
Technical Specifications
| Characteristic |
Specification |
| Brand |
TOWMA Carbon & Performance Parts |
| Product |
Valved Axleback Exhaust System |
| Material |
T304 Stainless Steel |
| Welding method |
TIG welded |
| Finishing |
Polished stainless steel |
| Valves |
Electronically controlled |
| Weight saving |
8-12kg compared to OEM |
| Capital gains |
5-8 hp |
| Fit |
OEM+ direct fit |
| Suitable for |
Audi R8 V10 (2016+) |
| Warranty |
3 years on construction and fit |
| Price |
€3,999 |
Maintenance & Warranty
Maintenance:
- Check valve actuators regularly for functionality
- Inspect for cracks or leaks
- Clean the outside with stainless steel cleaner for a shine
- Check mounting bolts annually
- Polish stainless steel with stainless steel polish for a high gloss
Warranty:
TOWMA offers a 3-year warranty on construction, fit, and finish. The warranty covers manufacturing defects, leaks, and valve problems. Damage due to improper installation, accidents, or misuse is not covered by the warranty.
Frequently Asked Questions
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What's the difference between an axleback and a catback? An axleback only replaces the rear section (after the midpipes). A catback replaces everything after the catalytic converters. An axleback is cheaper and easier to install.
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How loud is this system? Loud with the valves open, especially at high RPM. With the valves closed, it's bearable but still louder than OEM.
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Is this MOT-compliant? Possibly, depending on inspection. Less loud than catless downpipes, but louder than OEM.
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Do the valves work with my drive modes? Yes, they integrate with Audi's OEM valve controls (Comfort/Auto/Dynamic/Individual).
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Will I get more power? Yes, 5-8 hp due to improved flow. For more power, combine it with downpipes and an ECU tuner.
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Will this fit my 2015 R8? No, this is only for the second-generation R8 (2016+).
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Can I combine this with downpipes? Yes, it's perfect for combining with aftermarket downpipes for maximum flow.
Free shipping in the Netherlands on orders over €50. Direct delivery from stock.
