+67 moreB48 Downpipe
F & G Chassis · BMW 120I, 125I, 220I, 230I, 320I, 330E, 330I, 420I, 430I, 520I, 530I, 530E, 630I, 730I, 740E, X3 X4 20I 30I & XDRIVE, Supra A90 B48 · (OPF & V-Band Flange Type)
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Send your VIN, we check before we ship
2 years on the catalytic converter
On every order, fully covered
Install and remap in one visit
- ✓
Rated 4.9/5 by our customers
- ✓
Developed in-house by DCE Parts
- ✓ Sold and fitted by 70+ dealers and specialists
+67 more
Description
The BMW B48 Catless or High Flow Catted Downpipe is the best mod you can do. Do you want to unlock high horsepower numbers with your BMW B48 Engine with factory OPF in your BMW 120I, 125I, 220I, 230I, 320I, 330E, 330I, 420I, 430I, 520I, 530I, 530E, 630I, 730I, 740E, X3 X4 20I 30I? Installing a Downpipe for your BMW B48 will provide great performance and is the best bang for buck modification. Purchase your B48 downpipe for more performance.
DCE Parts - B48 Downpipe - F & G Chassis - BMW 120I, 125I, 220I, 230I, 320I, 330E, 330I, 420I, 430I, 520I, 530I, 530E, 630I, 730I, 740E, X3 X4 20I 30I & XDRIVE, Supra A90 B48 - (OPF & V-Band Flange Type)
Diameter at the biggest point is 5.7 inch / 145mm including heat shield / 5.5 inch / 140mm excluding heat shield
Through the placement of a bigger downpipe the turbo spools up quicker due to a lower back pressure. The turbo starts to build up pressure at lower speeds. It also manages to build up pressure quicker after gear changes. The installation of the downpipe alone usually provides 15 HP and 25Nm extra. By installing the downpipe, you will enhance the sound of your vehicle as well.
For proper operation and optimal power output, the vehicle will need remapping of the ECU to accommodate the catless downpipe. This product is not suitable for road use.
Options
Most DCE Parts Downpipes can be specced with a full straight Decat, a Catalytic Converter Look (but with empty cat) or with a High Flow Cat.
DCE Parts introduced a line up of Downpipes that not only offer more performance, but also much nicer sound. The DCE Parts Downpipes are optionally specced with a Catalytic Look while being catless, for enhanced sound and a OE/Catted look. The DCE Parts Downpipe can also be fitted with a High-Flow Cat.
Note:
The Catless downpipes and Catless Catalytic Look Downpipes are only suitable for off-road use. The 200 Cell Sport Metallic Catalytic Converter Downpipes are suitable for road use in most Countries. We recommend to check your local law before purchasing the downpipes.
Contact us for more information.
Please check the outlet type of your OEM Downpipe, this part is suitable for vehicle with the OPF & V-Band Flange Type, see image. The difference usually is OPF and no OPF filter.
Please note that the downpipe only fit on cars with OPF and V-Band Flange Type
Please feel free to contact us to ask for the correct fitment.
- BMW 1-Serie F20 120i/125i
- BMW 1-Serie F21 120i/125i
- BMW 2-Serie F22 220i/230i
- BMW 2-Serie F23 220i/230i
- BMW 3-Serie F30 330e/330i/330iX
- BMW 3-Serie F31 330i/330iX
- BMW 3-Serie F34 GT 330i/330iX
- BMW 4-Serie F32 420i/420iX/430i/430iX
- BMW 4-Serie F33 420i/420iX/430i/430iX
- BMW 4-Serie F36 420i/420iX/430i/430iX
- BMW 7-Serie G11 730i/730Li/740e/740Le
- BMW 7-Serie G12 730i/730Li/740e/740Le
- Toyota Supra A90 B48 2.0
- BMW 3-Serie G20 320i/320iX/330e/330eX/330i/330iX
- BMW 3-Serie G21 320i/320iX/330e/330eX/330i/330iX
- BMW 5-Serie G30 520i/530e/530i/530iX
- BMW 5-Serie G31 520i/530i/530iX
- BMW 6-Serie GT G32 630i
- BMW X3 G01 20i/20iX/30iX
- BMW X4 G02 20iX/30iX
Replaces parts:
- 18 32 9 488 919 / 18329488919
- 18 32 9 489 938 / 18329489938
- 18 32 9 797 597 / 18329797597
Note:
Certain products, such as exhaust components or tuning software, may alter or remove emissions systems. These parts are intended for off-road or motorsport use only and may not be legal for road use in your country. It is the buyer’s responsibility to ensure compliance with all local laws and regulations. Use at your own risk. These products are intended for off-road, race, or competition use only, and are not legal for use on public roads or vehicles registered for street use in the United States. It is the customer’s responsibility to ensure compliance with all local, state, and federal laws. Installation or use of these products on pollution-controlled vehicles may violate the U.S. Clean Air Act and could result in significant fines or penalties.
All fitting models per chassis
OEM numbers: 18329488919, 18329489938
WHICH VERSION IS RIGHT FOR ME?
| Feature | Catless Heat Shield | High Flow Cat 200 Cell Heat Shield Popular choice | High Flow Cat 300 Cell Euro 6 Heat Shield | High Flow Cat 400 Cell Euro 6 Heat Shield |
|---|---|---|---|---|
| Price | €529,00 | €799,00 | €999,00 | €1.249,00 |
| Road use Check your local law | Off-road / motorsport only No ECE approval | EU5 – limited EU countries No ECE approval | EU6 – most countries No ECE approval | EU6 – most countries No ECE approval |
| Sound | ||||
| Flow / power | ||||
| Select |
Everything you need to fit it
The parts our techs fit with it. Take the complete set and save on every part.
Everything you need to fit it
-
This product
DCE Parts - B48 Downpipe - F & G Chassis - BMW 120I, 125I, 220I, 230I, 320I, 330E, 330I, 420I, 430I, 520I, 530I, 530E, 630I, 730I, 740E, X3 X4 20I 30I & XDRIVE, Supra A90 B48 - (OPF & V-Band Flange Type)
Catless Heat Shield
€529,00
-
DCE Parts BMW G20 G21 320e 330e OPF Delete MidpipeOPF delete midpipe for the 320e / 330eIn stock
€599,00
-
OptionalBMW - Genuine B48 B58 Catback Downpipe Clamp - 18 30 5 A09 B63Clamp between downpipe and catbackOn order
€30,50
-
OptionalBMW - Genuine B48 Turbo Clamp - 18 30 7 606 136Clamp between turbo and downpipeIn stock
€30,50
-
OptionalBMW - Genuine B48 Turbo Gasket - 18 30 7 581 970New turbo gasket prevents exhaust leaksIn stock
€19,50
-
DCE Parts BMW G20 G21 320i 330i OPF Delete MidpipeOPF delete midpipe for the 320i / 330iOn order
€729,00
-
OptionalBMW - Genuine B48 B58 Catback Downpipe Clamp - 18 30 5 A09 B63Clamp between downpipe and catbackOn order
€30,50
-
OptionalBMW - Genuine B48 Turbo Clamp - 18 30 7 606 136Clamp between turbo and downpipeIn stock
€30,50
-
OptionalBMW - Genuine B48 Turbo Gasket - 18 30 7 581 970New turbo gasket prevents exhaust leaksIn stock
€19,50
-
BMW - Genuine B48 B58 Catback Downpipe Clamp - 18 30 5 A09 B63Clamp between downpipe and catbackOn order
€30,50
-
BMW - Genuine B48 Turbo Clamp - 18 30 7 606 136Clamp between turbo and downpipeIn stock
€30,50
-
BMW - Genuine B48 Turbo Gasket - 18 30 7 581 970New turbo gasket prevents exhaust leaksIn stock
€19,50
Not sure this set fits or is allowed for your car? Send us your VIN and we'll check it for you.
SPECIFICATIONS
| Diameter (widest point, incl. heat shield) | 5.7 inch / 145 mm |
|---|---|
| Diameter (widest point, excl. heat shield) | 5.5 inch / 140 mm |
| Flange type | OPF & V-Band |
| Engine | BMW B48 with factory OPF |
| Gain (downpipe only) | Approx. 15 HP / 25 Nm |
| Heat shield | Included |
FITTED AND TUNED IN ONE VISIT
The downpipe needs a remap to run right. Let our workshop in Woerden fit the parts and tune your car.
HEAR THE DIFFERENCE
Well made product, perfect fit, great sounding,
performed as expected in stage 2 tuning, recommended.
2 points of note
Make sure you get new v clamps and ring for fitting it to the existing parts
Contact the shop for availability as this was not in stock and the wait was 4 weeks
Schön verarbeitet, leicht kerniger Sound und wesentlich weniger Abgastemperatur. 🤩
Nur den Einbau hab ich mir leichter vorgestellt 😅
Amazing Downpipe, the car sounds awesome. Thank you.
Ottima qualità costruttiva
Conforme alla descrizione
Sounds amazing after tune
This item looks really really nice. The painting is spot on.
Im still working on the dyno, so I dont know how much Power it Will bring me.
The Price was okay.
Communication with Psr was not the best. They send me an e-mail with a demand Of paying. But i paid All stuff at the same day i send the order. Byt they were afterwards in a hurry to send me My items. Im a happy guy.
I’m really happy with the quality and overall finish of the parts — excellent work.
Very good downpipe! Does what it needs to do! Quicker response on the gaspedal and good sound!
Perfect
Extremely wellbuilt downpipe. Installing it was very easy. A perfect fit.
Delivered in 6 days to France, I installed it few days ago, and deleted the OPF as well. Tuned the car on Stage 2 and its amazing.
Great quality for the downpipe and sounds really good.
Hi Nicolas,
Thank you very much for the review! Enjoy the ride!
With kind regards,
PSR Parts
I had that well made downpipe installed, along with an OPF delete, and flashed it with BM3 Stage 2.
I’m not sure how much the OPF delete contributes to the sound, but I’m very happy with the results. It’s only been on the car for a few days, but it sounds great even with the stock mufflers. Love it!
Hi Wojciech
Thank you very much for the review! The OPF delete definitely adds a lot! Enjoy your ride!
With kind regards,
PSR Parts
Installed in my 2022 supra and it’s basically the best downpipe on the whole internet!
QUESTIONS BEFORE YOU BUY
Still in doubt? We answer on WhatsApp during workshop hours.
Do I need a remap?
Yes. For proper operation and optimal power output, the ECU needs a remap to accommodate the downpipe, especially the catless version.
Is this downpipe road legal?
The Catless and Catless Catalytic Look versions are for off-road use only. The 200 Cell Sport Metallic Catalytic Converter version is suitable for road use in most countries. Please check your local law before purchasing.
How much power does it add?
A larger downpipe lowers back pressure, so the turbo spools up quicker and rebuilds pressure faster after gear changes. The downpipe alone usually adds about 15 HP and 25 Nm, and it improves the sound of your car.
Which OEM numbers does it replace?
18329488919 and 18329489938.
Will it fit my car?
This downpipe only fits cars with OPF and the V-Band flange type. Check the outlet type of your OEM downpipe. The difference is usually an OPF filter or no OPF filter. Contact us if you are unsure.
Contact us
Questions about this part?
Tell us your car and what you need. A tech checks fitment and gets back to you within one business day.
Emissions & road use
Catless, cat-delete and OPF/GPF-delete versions are intended for motorsport and off-road use only. Fitting them on a road-registered vehicle may not be permitted in your country and can affect type approval, inspections (MOT/APK/TÜV), warranty and insurance. Versions with a 200- or 300-cell high-flow catalytic converter keep a catalyst in place. Always check your local regulations before fitting. Catless and delete parts are not shipped to the United States.
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Warranty
- DCE Parts: lifetime warranty on welds, 2 years on catalytic converters
Shipping options
- Insured shipping to your workshop, within the Netherlands and the EU
- Drop shipping directly to your customer
- Collection free of charge at our warehouse in Woerden
- Bulk orders by pallet