Description
xUnlock Maximum Performance: BMW B58 Catless Downpipe Upgrade | AME Motorsport – Precision, Power & Aussie Engineering
Are you a BMW owner who lives for the thrill of acceleration, the roar of a turbo, and the satisfaction of outpacing the competition? Whether you’re carving up mountain passes, dominating track days, or just want your daily drive to feel truly alive, you know stock just isn’t enough. You crave more power, sharper response, and hardware that’s as serious about performance as you are.
Meet the AME Motorsport Catless Downpipe for BMW 540i (G30 LCI), 840i (G14/15/16), and Z4 (G29) with B58 3.0T (2021+). Expertly designed and engineered in Australia, this downpipe is the definitive upgrade for enthusiasts demanding unrestrained flow, real dyno-proven gains, and flawless fitment—whether you’re running RHD, LHD, or looking to pair with high-output turbo setups. Precision TIG welding, premium stainless steel, and seamless compatibility with Stage 2-4 turbo kits set this downpipe apart from the rest.
Transform Your Drive: Key Benefits
- Unleash Real Horsepower: Gain 20–25hp instantly without a tune, and up to 100hp when tuned—feel the difference every time you press the throttle.
- Built for Extreme Power: Flows efficiently up to 1,000HP—ideal for major turbo upgrades and future-proofing your build.
- Race-Grade Materials: Crafted from 1.5mm thick SS304 stainless steel for exceptional corrosion resistance and longevity.
- Perfect Fit & Finish: Precision CNC-machined flanges ensure leak-free installation; mirror-like polishing and sandblasting deliver a show-car finish.
- Universal Compatibility: Fits both Right and Left Hand Drive BMWs—install with confidence worldwide.
Why Choose AME Motorsport?
Unlike generic imports, AME Motorsport downpipes are designed, tested, and refined in Australia by genuine performance experts. Every weld is executed with TIG precision for structural integrity under high boost, and every component is CNC-machined for a flawless, bolt-on fit. We don’t just meet global standards—we set them, delivering hardware trusted by pro tuners and weekend warriors alike.
For True BMW Enthusiasts: Picture Yourself
- Track Day Hero: Shave seconds off your lap times as you rocket out of corners with faster spool and relentless top-end pull.
- Mountain Road Master: Experience sharper throttle response and intoxicating sound as you climb twisty backroads, every shift more exhilarating.
- City Cruiser, Unleashed: Turn heads at every stoplight with a richer exhaust note and vibrant acceleration that makes daily driving unforgettable.
BMW B58 Downpipe FAQ: What Enthusiasts Ask
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Q: Will this downpipe fit my model/year?
A: Yes! It’s engineered for BMW 540i (G30 LCI), 840i (G14/15/16), and Z4 (G29) with B58 3.0T engines, model years 2021 and up, supporting both RHD and LHD vehicles. -
Q: Is tuning required to use this downpipe?
A: No tune is needed for initial gains (20–25hp), but pairing with a tune unlocks maximum power (50–100hp). For best results and emissions compliance, a tune is recommended. -
Q: How does the exhaust sound change?
A: Expect a deeper, sportier tone with increased turbo spool and volume—without excessive drone. -
Q: Is installation straightforward?
A: Yes. The CNC-machined flanges and expert construction ensure a perfect fit; professional installation is recommended for optimal results. -
Q: What turbo kits is this downpipe compatible with?
A: Fully compatible with AME Motorsport Stage 2, 3 & 4 turbo kits, guaranteeing seamless upgrades as your build evolves.
Technical Specifications
- Vehicle Compatibility: BMW 540i (G30 LCI) / 840i (G14/15/16) / Z4 (G29) with B58 3.0T, 2021+
- Power Support: Up to 1,000HP
- Material: 304 Stainless Steel, 1.5mm thickness
- Welding: TIG welded for maximum durability
- Pipe Size: 114mm to 76mm transition
- Flanges & Fittings: CNC-machined from SS304
- Compatibility: RHD & LHD vehicles
- Finish: Mirror-polished & sandblasted
- Performance Gains: 20–25hp (no tune); 50–100hp (with tune)
- Turbo Kit Compatibility: AME Stage 2, 3, & 4
Experience the Ultimate BMW B58 Upgrade—Order Now!
Don’t settle for ordinary. Elevate your BMW’s performance, sound, and style with the AME Motorsport Catless Downpipe—engineered for enthusiasts who demand the best. Transform your drive—click “Add to Cart” and feel the difference on every road!
Additional Information
xShipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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