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Registered User
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No Emissions- Exhaust set up
I'm trying to open the car up a little and help it cool better. The sound is not a big issue for me. I'm keeping a stock muffler, but and curious is I can just remove my CC and if so what issue are there to the engine and the performance? From what I've seen, i have no o2 sensor, and i live in Florida, so there are no restrictions.
I have a 78 sc. Thanks, Miek
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___________________________ 1978 Jeep CJ5 (red) 78K 1978 Porsche 911 Coupe (silver) 89K 1984 Porsche 944 (red) 71K 2004 Chevy Tahoe Z71 (silver) 74k |
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Crotchety Old Bastard
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If you have no O2 sensor I would verify weather you have a catalytic converter or a premuffler.
A cat will steal some power. If you do have a cat then replacement choices are a premuffler or cat bypass pipe. The bypas pipe is not a muffler so louder than a premuffler. Both premuffler or bypass pipe are more free flowing than a cat. A properly constructed premuffler will flow the same as a bypass pipe.
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RarlyL8 Motorsports / M&K Exhaust - 911/930 Exhaust Systems, Turbos, TiAL, CIS Mods/Rebuilds '78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar Brian B. (256)536-9977 Service@MKExhaust Brian@RarlyL8 |
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ROW '78 911 Targa
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Best solution...
Backdate to pre 74 type heat exchangers with 2 into one muffler. Really makes a big improvement. I have SSI's and a 2 into one Dansk and love it. Not loud at all but sounds great when you open it up and definitely improved the power band.
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Dennis Euro 1978 SC Targa, SSI's, Dansk 2/1, PMO ITBs, Electric A/C Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds. |
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gearhead
Join Date: Nov 2007
Location: Loverland, CO
Posts: 23,555
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M&K makes a nice cat bypass for your car if you don't want to buy headers or new heat exchangers.
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1974 914 Bumble Bee 2009 Outback XT 2008 Cayman S shop test Mule 1996 WRX V-limited 450/1000 |
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