The Black Mamba 2.5" / 63.5mm decat downpipe is made from high-quality stainless steel and fits without modifications between the turbo and the front pipe of the Abarth 595 equipped with the Garrett turbocharger (check compatibility list). Designed to remove the OEM catalyst, this downpipe delivers an aggressive sound and a power gain of approximately 11hp to the 1.4T engines. Direct mounting 100% T304 stainless steel Aggressive sound TIG welding 2.5" / 63.5mm diameter Mounting kit included Lifetime warranty Only fits OEM Garrett turbo