I've entertained the idea of a cat bypass/premuffler, but didn't want to go through the trouble of replacing the cat every two years for emissions

Just had my car inspected, here are the results: --------- reading -------- Allowable ----- result HC-ppm ------5 ----------- 174 ------------ pass CO-

My 88 Targa failed CT emissions. The results were: HC (Limit) 156 - Car scored 39 Pass CO (Limit) .50 - Car scored .61 FAIL NOx (Limit) 1094 - Car

Did 1977 911 Porsches come with cats and smog equipment of any kind? Will a stock 2.7 ROW pass California emissions? How can this be determined? Any

Feb 23, 2016 · Does anyone use a stand along 12v DC power supply to test our automotive things? Maybe a variable voltage, 5A-ish output supply? Amazon has a few

May 12, 2023 · Hello, all! [cross-posted on Rennlist] The story: I have a 1987 924S which currently has a straight pipe (welded to the 2-1 exhaust pipe from the

Two of the wires to the control switch for the driver's side mirror have broken their solder joints on my 1988 Porsche 911, and I'm not sure which

Posted this topic earlier but no responses. How is the pressure in the gas tank equalized as it empties? My tank seems to have significant negative

Yesterday the old girl moved about 500 miles to the north. Made the trip fine - but when I went to fire the car up today, the idle was surging. This

Car stored for 6 yrs with new brake parts that have since corroded. Rebuilt the fronts a few weeks ago (seized piston) caused uneven wear so scrapped