I'm looking to buy Exhaust Catalytic Converter Bypass Pipes for my Porsche 997.1 ( https://www.design911.com/p/exhaust...s-pipes-for-porsche-997-designtek--evolution/ ) but I'm also considering ( https://www.design911.com/p/exhaust-catalytic-converter-pipes-porsche-997/ ).
What are the differences with regards to sound and engine characteristics? Do I need lambda sensor extension for both the options? I cant seem to find the non-angled extension recommended by Designtek, but design911 has a lot of options, and they recommend a 45 degree angled variant. Is angled the way to go?
Any input is appreciated!
What are the differences with regards to sound and engine characteristics? Do I need lambda sensor extension for both the options? I cant seem to find the non-angled extension recommended by Designtek, but design911 has a lot of options, and they recommend a 45 degree angled variant. Is angled the way to go?
Any input is appreciated!
