C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Stock exhaust size

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Old Feb 22, 2003 | 02:41 PM
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From: Everyday you must choose between the pain of discipline and the pain of regret. Fredericktown, OH
Default Stock exhaust size

Is there a differene between the tubing size in an LT-1 vs. and LT-4. I am looking for an exhaust for my LT-4 and want to make sure there is not problem if I were to buy mufflers from and LT-1 owner or from a company offering kits for LT-1.

Thanks
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Old Feb 22, 2003 | 03:27 PM
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Default Re: Stock exhaust size (LT-4 CE)

LT1 and LT4 exhaust systems are the same size, the only difference between them is that the LT4 system has a cross over pipe by the resonator (as do some late 95 6 speed LT1 systems).

Eric
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Old Feb 22, 2003 | 03:48 PM
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From: Everyday you must choose between the pain of discipline and the pain of regret. Fredericktown, OH
Default Re: Stock exhaust size (LT-4 CE)

Thanks!
I imagine your car is quite a bit quicker with the mods you have made.
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Old Feb 22, 2003 | 08:34 PM
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Default Re: Stock exhaust size (LT-4 CE)

I imagine your car is quite a bit quicker with the mods you have made.
If it isn't, it will be after I install my long tube headers and HOT cam :blueangel:

Eric
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Old Feb 22, 2003 | 09:36 PM
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Default Re: Stock exhaust size (silver & red CE)

Not 100% sure of this, but also the LT4 has an Oxygen sensor on the exhaust which I believe is not used on the LT1. It threads into a "boss" on the exhaust pipe which is not provided on LT1 systems.
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Old Feb 24, 2003 | 01:52 PM
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Default Re: Stock exhaust size (silver & red CE)

LT1 and LT4 exhaust systems are the same size, the only difference between them is that the LT4 system has a cross over pipe by the resonator
:withstupid:
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Old Feb 24, 2003 | 04:36 PM
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Default Re: Stock exhaust size (LT4BUD)

All the '96's have the post cat O2 sensors. It's an OBDII requirement. The stock exhaust size is pretty beefy at 2.75".
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Old Feb 24, 2003 | 05:40 PM
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Default Re: Stock exhaust size (Dan Parker '96)

Was it only the LT4s that had the 2 3/4 exhaust or all 1996s? :)
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Old Feb 25, 2003 | 05:31 AM
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Default Re: Stock exhaust size (lead_foot)

Was it only the LT4s that had the 2 3/4 exhaust or all 1996s? :)
All LT1/4 had the 2.75" OD, 2.5" ID exhaust system that necks down to almost 2.0" ID at a couple of points.

Eric
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