986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - benefits of catalytic converter replaced?

FrayAdjacent · 02-10-2007, 08:45 AM

Well, an old catalytic converter ('cat') could cause flow issues. Backpressure, some people say, helps low end torque... but it could be hindering your engine's ability to breathe well.

Could be that your old cat was not flowing well, which would cause a reduction in horsepower, and a reduction in fuel economy. After all, the engine does have to work to push exhaust through it!

02-10-2007, 08:45 AM	#2
FrayAdjacent Registered User Join Date: Dec 2006 Location: Austin, TX Posts: 939	Well, an old catalytic converter ('cat') could cause flow issues. Backpressure, some people say, helps low end torque... but it could be hindering your engine's ability to breathe well. Could be that your old cat was not flowing well, which would cause a reduction in horsepower, and a reduction in fuel economy. After all, the engine does have to work to push exhaust through it! __________________ 2001 Boxster - Grey on Grey 1969 911T Targa - 'Stinky' http://www.zoto.com/frayadjacent/img...f27a-4a399.jpg <---- my car. ^ crap I post. "The existence of the flamethrower is evidence that someone, somewhere once said 'I want to set those people over there on fire, but I don't want to have to walk over there to do it.'"