Specifications & Features:
- 100% T-304 Stainless Steel Piping TIG-welded onto computerized CNC-machined flanges for strong, long-lasting durability
-4" to two 2.5" collectors
- Smooth bends improve flow and performance.
- Fits 2011-12 BMW E82 135i Coupe, E88 135i convertible equipped with single turbo N55B30 motor only.
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