Alfa Romeo Forum - View Single Post - De-catting vs. removing a silencer from exhaust on 2.0 TS

Chris155 · 21-01-2008

I made a decat pipe (straight through pipe) for my old 145 QV which I was running with an OE Alfa system.

I found that the baffles were failing in the rest of the system as a result of the decat pipe. I do not think that there were significant gains to be had from it and it was significantly louder.

However, I had a scilenced decat and full stainless cy-box (peco) system fitted to my 2.5 V6 156 and saw a gain of around 8bhp. Be warned though, it was LOUD.

21-01-2008	#7 (Post Link)
Chris155 AO Silver Member Join Date: Jan 2003 Location: Chester Posts: 3,250 Member car: 156	Re: De-catting vs. removing a silencer from exhaust on 2.0 TS I made a decat pipe (straight through pipe) for my old 145 QV which I was running with an OE Alfa system. I found that the baffles were failing in the rest of the system as a result of the decat pipe. I do not think that there were significant gains to be had from it and it was significantly louder. However, I had a scilenced decat and full stainless cy-box (peco) system fitted to my 2.5 V6 156 and saw a gain of around 8bhp. Be warned though, it was LOUD.