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The aFe MACH Force-Xp 2.5" 304 stainless steel cat-back for 2006–2008 BMW Z4 M (E85/86) features mandrel-bent tubing, dual high-flow polished mufflers and quad 3" polished stainless tips with laser-etched logos. Fully hand TIG-welded and finished for corrosion resistance, it uses OE-style bayonet hangers and includes hardware for a true bolt-on installation. Dyno testing showed gains up to +7 hp and +15 lb-ft.
aFe MACH Force-Xp 2-1/2in 304 SS Cat-Back Exhaust w/Polished Tips 05-08 BMW Z4 M Coupe (E86) L6 3.2L
