Valved axle-backViewing
BMW G80/G82/G83 M3/M4 Valved Axle-Back
$2,190
- Stainless axle-back with quad tips
- Works with the factory exhaust valves
- Replaces the rear axle-back section only
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BMW G80/G82/G83 M3/M4 Valved Axle-Back | Project Gamma
$2,190.00
- Part number
- G80AXBCK
- Fits
Not sure it suits your car? Send us your VIN or rego and we'll confirm fitment before you order. Check fitment
In Adelaide? We can fit it at our Stepney workshop. Book fitting
CHASSIS FITMENT NOTICE
100% PLATFORM COMPATIBILITY VERIFIED
Every order is cross-referenced against vehicle specifications, chassis diagrams, and manufacturer technical bulletins prior to order submission to eliminate incorrect part risk.
VIN / Rego Verification: Please supply your vehicle registration or VIN when submitting your enquiry so our technicians can verify fitment before order finalization.
FITMENT GUARANTEED
Every part checked against vehicle specs, registration, or VIN before order finalization.
1-2 WEEK TYPICAL LEAD TIME
Sourced direct from verified manufacturers with active supplier order tracking.
TRANSPARENT FREIGHT
Quoted to your door before you pay, or free pickup at our Stepney workshop.
PROFESSIONAL INSTALLATION AVAILABLE
In-house fitting and calibration in Stepney, Adelaide.
Manufacturer's warranty on every part. Faulty, damaged or not what you ordered? Tell us within 7 days and we cover the return freight. Returns and warranty · Shipping
Freight quoted to your door
This is a large or heavy part, so we quote freight to your postcode before you pay anything. Free collection from our Stepney workshop.
Get a freight quoteWe reply within one business day. Prefer to talk? Call 0422 493 405.
Options for your car
Compare G80 M3 / G82 M4 rear exhausts
Valved catback
BMW M3/M4 (G80 | G82 | G83) Stainless Steel Catback Exhaust System
$2,995
- 304 stainless, bolt-on at factory mounts
- Works with the factory exhaust valves
- Replaces the factory rear section
Product description
A stainless-steel rear exhaust upgrade from Project Gamma for BMW G80 M3 and G82/G83 M4, retaining operation through the factory exhaust valves.
Product details
- Valved stainless-steel axle-back with quad exhaust tips.
- Supplier part number: G80AXBCK.
- Rear axle-back section only — not a complete cat-back system.
Fitment and installation
Project Gamma lists 2021-on G80 M3, G82 M4 and G83 M4 Convertible with the S58 engine, including Competition and xDrive models. Exact Australian-market fitment must be confirmed for your vehicle.
Professional installation is recommended. Cutting or minor adjustments may be required depending on the factory or aftermarket midpipe fitted. Tell us about your existing exhaust so we can scope the installation accurately.
Supply or supply and fit
Send SL Autowerkes your registration or VIN and current modifications for confirmed fitment, availability and final pricing. Installation is available at our Stepney, SA workshop.
Call 0422 493 405 to discuss your build.
Order-in enquiries
This product is ordered in for you, not held as workshop stock. Availability and estimated delivery will be confirmed with the supplier before you commit. Freight is quoted separately; installation is additional unless included in your written quote.
Our supply pricing is based on the supplier’s current AUD retail price for the selected configuration. Your written quote will confirm the product price, GST treatment, freight and any installation costs before ordering.
To request a quote, call 0422 493 405 with the product name, your vehicle model/year and registration or VIN, any current modifications, your preferred product options and whether you need supply only or supply and fit. For supply only, please also provide your delivery postcode.
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Delivery and fitting
ORDER-IN & LOGISTICS
PRE-PURCHASE & SHIPPING FAQ
How does the order-in process work?
We verify live supplier inventory and issue a comprehensive written quote covering the part, current AUD pricing, GST, and tailored freight to your address (or free Stepney collection). Once you review and approve the quote and vehicle fitment is confirmed, your order is secured directly with our manufacturer allocation.
What are the estimated delivery times?
Typical delivery is 1 to 2 weeks for air freight sourced directly from verified European and international manufacturers. Active consignment tracking is maintained throughout transit until parts arrive at our Stepney workshop for collection, workshop installation, or dispatch to your door.
Can I pick up or have parts installed locally?
Yes. Free local collection is available from our Stepney workshop facility in Adelaide. We also offer professional in-house fitting, alignment, and calibration by European platform technicians. Simply select "Supply and fit at Stepney" when submitting your enquiry.
What happens if fitment is uncertain?
Our workshop technicians cross-reference manufacturer technical schematics, platform codes (such as S58, B58, S63TU), and your vehicle registration or VIN before placing the order. If there are model-year variations, aftermarket modifications, or clearance concerns, our team confirms compatibility with you and the supplier prior to commitment.
Questions
Questions about this part?
Tell us your car's model, year and VIN or rego and we'll confirm fitment, lead time and freight before you pay anything. Quote part number G80AXBCK when you get in touch.
More answers on our FAQ page, or visit the workshop at Unit 81, 75–91 Magill Road, Stepney SA.
Enquire about this part
Tell us about your car and we will confirm fitment, availability and a quote. Parts are ordered in; freight is quoted separately. This enquiry does not place an order.
