C4 General Discussion General C4 Corvette Discussion not covered in Tech

Best Exhaust Option For L98?

Old 02-21-2015, 07:55 AM
Joe C
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Originally Posted by thecatmac View Post
Is this frisbee on a 85?
no -
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Old 02-21-2015, 10:06 AM
C4in mesa
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Originally Posted by musicmanz28 View Post
Would any of this cause computer problems?
My 1988 C4 has a long list of modifications. Ported heads, the list goes on and on. Hedman long tube ceramic coated headers EGR O2 sensor. Emissions intact no codes ! I chose Flowmaster 44 mufflers and Magnaflow cats true dual exhaust. If the car was OB2 getting a tune would be money well spent. OBD1 don't waste the money. You car will run better and get better gas mileage at least it should.
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Old 03-11-2015, 03:37 PM
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Originally Posted by mash2k View Post
That Corsa for the L98 sounds nice but I already have a magnaflow. I really would like some of the boards experts to respond because I want to do right by my corvette.
Corsa is only way to go if you do not want resonance inside. They have tuned it out. Had mine now for 3 yrs. Love it. Looks good too
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Old 03-11-2015, 03:54 PM
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I would go option #3 and just bolt on some 3:73 gears. I put 3:54 gears on mine and I like it but I think 3:73 gears would be better. In the 60's they put 4:11 in with a 4 speed so I would think 3:73 would be good in a L98 it has the torque to turn them. Plus the lower gears keeps the engine in the mid range power rpm. I had 2:73 I think and they were terrible.
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