![B46/B48 Stainless Steel Downpipe Upgrade [Race Downpipes] Model:B48 while the custom silicone couplers](https://cdn.shopify.com/s/files/1/0023/6109/8353/files/spool_b46_downpipe.jpg?v=1778875126)
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while the custom silicone couplers and precision mounting hardware provide an OEM-level installation with long-term reliability
using the same mounting architecture as the factory components to allow for a clean swap without modification or additional hardware
With it's extra-large 3 in inside diameter
each grille is built to the same standards expected from TREVORA's broader aero range
B46/B48 Stainless Steel Downpipe Upgrade [Race Downpipes] Model:B48 while the custom silicone couplersSpool B46 B48 Downpipe Important Note: Many BMW owners in the US mistakenly assume they have the B48 engine, but all U. S. market 30i models are equipped with the B46 engine. After purchasing, please send an email to customer_service@spoolperformance. us with your VIN to confirm fitment. It is very important for us to verify what engine you have as we have both models in stock. Why upgrade to a downpipe? A downpipe is one of the best bang for your
US$ 699.50
US$ 849.50
US$ 102.50
