Straight pipe vs. X-pipe
06-24-2011, 10:11 AM
#26
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Two 957 Cayenne GTS's (black and silver), Duc749 (dark), departed '03 E55
If you or anyone on this thread living CO could PM me about their experiences with this, I'd love it. I went to do x-pipe, but given his comments I shied away. I don't have any facts either way, so I just trusted his "expert" opinion. Thanks!
Last edited by s4treg; 06-24-2011 at 10:48 AM.
06-24-2011, 10:28 AM
#28
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Two 957 Cayenne GTS's (black and silver), Duc749 (dark), departed '03 E55
BTW - For newbies like myself, here's a picture of a E55 resonator (taken off of course), including what it looks like down the pipes.
06-24-2011, 10:47 AM
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Two 957 Cayenne GTS's (black and silver), Duc749 (dark), departed '03 E55
If you go to the inspection station they will run an ODB test. However they also have these roadside stations that you just drive by 3x's in 60 days (don't hold me to the # of days) and it registers you. The drive by is ideal especially if it's a route you take often as you then never have to wait at the inspection station.
06-24-2011, 10:50 AM
#30
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Since there are no O2 sensors after the secondary cats, it won't throw a code, so you'll be safe there. I can't speak for what your increased hydrocarbons might be, though.
