Boosted Engineering

Valved Cat-Back Exhaust for BMW G20 320i, 325i, 330i (2019–2024)

SKU: BE-CB-B48-G20

$2199 AUD · Insured freight · Special order · usually dispatched within 5–14 business days

Not sure it fits your car? Call +61 461 324 537

Fits: BMW G20 320i, 325i and 330i (2019–2024)
Doesn't fit: F30 320i / 330i (see our F30 cat-back), the B58 M340i, or models not listed.

Valved cat-back exhaust for the G20 320i, 325i and 330i

Give your G20 320i, 325i or 330i the sound it should have come with. The Boosted Engineering Valved Cat-Back Exhaust replaces the restrictive factory system with free-flowing 304 stainless steel pipework and electronically controlled valves, so you get a cleaner, sportier four-cylinder note when you want it and a quiet cruise when you don't.

Close the valves for a refined, drone-free drive on the highway. Open them for a louder, motorsport-inspired tone with more pops and crackles on a tuned car. Less backpressure also helps throttle response and pairs with our downpipes and a tune.

Specifications

304 stainless steel, TIG welded, mandrel-bent pipework
Electronically controlled valves
Direct bolt-on using the factory mounting points and hangers

Key features

Electronic valves for quiet or loud modes at the push of a button
Free-flowing design that reduces backpressure
A cleaner, sportier four-cylinder note with the valves open
304 stainless steel, TIG welded, mandrel bent
Bolt-on fitment using factory hangers
Pairs with Boosted Engineering downpipes for a full turbo-back setup

What's included

Valved cat-back exhaust system

What else you'll need

New exhaust gaskets and hardware where required
A tune to suit your setup if you're also fitting a downpipe

Important information: Tip finish may vary slightly from photos. Off-road / motorsport use only (check local regulations). Not sure it fits? Send us your VIN and we'll confirm before you order.

Installation is not offered – we recommend fitting by an experienced workshop.

FAQ

Will this fit my F30 320i or 330i?
No. This exhaust is for the G20 320i, 325i and 330i (2019–2024). F30 owners need our F30 cat-back.

Can I keep it quiet on the highway?
Yes. Close the valves for a refined, drone-free drive. Open them for a louder tone.

Is it a bolt-on?
Yes. It's designed as a direct bolt-on replacement using the factory mounting points and hangers.

Is it road legal?
This exhaust is sold for off-road / motorsport use only. Check your local regulations.

Real-World Tested · Developed On Street And Track

12 Month Warranty · Insured Freight, Worldwide Shipping

Fitment Guarantee · We Confirm Fit Before You Buy

Shipping (Australia & international)

Items marked In stock are usually dispatched within 1–2 business days. Special order items (ordered in from our supplier for you) are usually dispatched within 5–14 business days. We'll email you a confirmed dispatch date within 24 hours of ordering. Australia (flat rate, tracked, shown at checkout before you pay): parts, axles and single turbochargers $22.99–$40, Kelford Cams parts $22.99–$89, cat-back exhausts $99, turbo kits $237, Turbo Stage 1 & 2 packages $277, transmissions from $334 and engines from $366. New Zealand: small parts $49, mid-size parts and axles $99, cat-back exhausts $179, turbochargers $185 and engine short blocks $399. Other countries (tracked): general parts and axles $150 (axles to the UK $537 by DHL Express), BMW parts $149.99 to North America and $249.99 elsewhere, turbochargers $275 to the US, Canada and China and $470 elsewhere. Turbo kits and Stage 1 & 2 packages ship with DHL Express, priced at checkout. Engines, short blocks and transmissions going overseas are quoted after you order. Shipping prices here are in AUD; checkout shows them in your currency. International orders don't include Australian GST. Import duties and taxes are paid by the buyer: for New Zealand, orders over NZ$1000 are charged 15% GST plus any duty and customs fees by NZ Customs before delivery. Want an exact price first? Use the quote request below.

Fitment guarantee

Send us your VIN or your car's model, year and engine before you order and we'll confirm the part fits. If we confirm it fits and it doesn't, we'll take it back at no cost to you – even on special order items. Email sales@boostedengineering.com.au or use the contact page.

Returns

Changed your mind? In-stock items can be returned within 30 days of delivery if they're unopened, not test fitted and in their original packaging. Choose a refund to your original payment method (20% return fee, plus 3% for PayPal or 6% for Afterpay/Zip) or 100% store credit with no fee. Special order and built-to-order items can't be returned for change of mind once dispatched. Cancelling one before dispatch has a 20% restocking fee, or you can take 100% store credit. Fitment guarantee: if we confirmed fitment before you ordered and the part doesn't fit, we take it back at no cost to you. Contact us first for a return (RMA) number. Return shipping is paid by you and original shipping isn't refunded, except under the fitment guarantee. Faulty, damaged or incorrect items are covered by our warranty and the Australian Consumer Law at no cost to you. Report shipping damage within 48 hours of delivery. Full details: returns and refund policy.

Warranty

12 month warranty on everything we sell – our own Boosted Engineering parts and the brands we stock. If something is wrong with your part, contact us and we will look after you.

Save 5% Buy 2 items, get 5% off the cheaper one. Applied automatically at checkout.

Bundle and save

Stage packages for your BMW B58 G Series

Every part for each stage in one cart, for less than buying them separately.Tap a stage to see exactly what is included.

Stage 1 Intake + Charge Pipe $999Save $61

Stage 2 Intake + Charge Pipe + Downpipe $1,479Save $81

Stage 2+ Intake + Charge Pipe + Downpipe + Heat Exchanger $2,449Save $131

Not sure which stage suits your build? Email sales@boostedengineering.com.auAll packages

Customer reviews

What our customers say

Real feedback from real builds

Boosted Engineering’s turbo kits are next level! The craftsmanship, design and attention to detail are outstanding. From the quality of the welds to the overall fit and finish, everything is exceptionally well engineered. Easily some of the best turbo kits on the market!

Oliver

Best place for getting your ride tuned. Very helpful and professional will be going back after doing some upgrades down the track

Tim

I’m so thankful for the quality work performed on my M2, Ben’s workmanship has been like no other. If you need a turbo kit Boosted Engineering has you covered!

Nick · BMW M2

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