01
Real experience
We test before we recommend.
PRODUCT DESCRIPTION
Downpipe DECAT BMW f30,f31,f34 N57N,N57Z
330d/dx,335dx
2011-2017
258,313 hp
Downpipe compatible with Euro 6 version with AdBlue.
Pipe diameter: 76.1 mm
Pipe diameter at the connection point with the central section: 70 mm
Turbocharger connection flange diameter: 105 mm
The downpipe has the following connections:
- Two lambda sensor connections
- Two temperature sensor connections
- Two pipes for pressure sensor hose
Downpipe made entirely of acid-resistant steel.
Each element of the product is manufactured using CNC technology.
24 months Manufacturer's warranty for the product.
Stock no. 113101
OE number:
18308513526
18308513528
18308516089
18308516088
18308576331
18308571006










WHY THETUNERLAB
We have spent years building cars, racing, and testing the exact same parts that we sell.
01
We test before we recommend.
02
We help you choose the right part.
03
Only trusted manufacturers.
04
Before and after the purchase.
+10 years
of passion for drifting
+30.000
available products
+5.000
satisfied customers
24/7
passion for motoring
Each product indicates compatible models in the product description. If you have any questions, you can contact us and we will help you choose your best option.
-If the product is in stock, the usual delivery time is 2 to 5 working days.
-If the product is out of stock, the delivery time is 7 to 15 working days.
All our products come with the manufacturer's official warranty and comply with current regulations.
Yes. We ship orders to Spain and most European countries using specialized transport agencies.
You can contact our team via WhatsApp, email, or our website's contact form.
Shipping costs depend on the type of product, its weight, dimensions, and the destination country. In most cases, the amount is calculated automatically during the checkout process before the order is finalized.
For some products, especially large items or those with special characteristics, shipping costs may require a manual review. If the amount shown does not match the actual shipping cost, we will contact you before processing the order to inform you of the final cost and request your confirmation before proceeding. We will never charge any additional fees without your authorization.