'91 ZR1 different Mufflers and Control Arms?
 

My apologies if this is a dumb question but I have been looking at 90-92 years and I noticed in the underbody pics of a few '91's some have the rectangle muffler and some have the double pipes on each side.
Also, I see some control arms are black and others are silver.
Was this an option or part of a package or color combo?

Thanks for the information.

Brad

Re: '91 ZR1 different Mufflers and Control Arms?
 

Please disregard the control arm question. It seems I was looking at some that were were not as clean as others so what looked like black was dirty silver:)

Re: '91 ZR1 different Mufflers and Control Arms?
 

All 1990-1995 ZR-1's stock mufflers had double pipes on each side

The older I get the faster I was.

Re: '91 ZR1 different Mufflers and Control Arms?
 

Thanks for the information Mr. Yuck.

Here are pics of a '91 and a '95 with the rectangle muffler outlets.

Re: '91 ZR1 different Mufflers and Control Arms?
 

Yes, that's not stock. Some people liked the LT-1 rectangular look so they replaced the mufflers or added muffler eliminators rectangular.

The older I get the faster I was.

Re: '91 ZR1 different Mufflers and Control Arms?
 

I'm a GM part consultant for chevy dealer trust me. I'm correct.Attachment 20008Attachment 20009

The older I get the faster I was.

Re: '91 ZR1 different Mufflers and Control Arms?
 

Thanks again. Very helpful.

Re: '91 ZR1 different Mufflers and Control Arms?
 

And here's the (LT1) rectangular mufflers which I personally think Look great on any c4. Attachment 20010

The older I get the faster I was.

Re: '91 ZR1 different Mufflers and Control Arms?
 

The sketchs from the parts books may show 2 pipes per side, but my 92 came stock with rectangular tips as shown in the actual pictures above.

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Re: '91 ZR1 different Mufflers and Control Arms?
 

Then I would say it was fitted with LT1 mufflers from the factory Possible part shortage? I was actually at the factory in 1992,1993 and1994 To watch the ZR-1's being built and all the ones I saw come off the assembly line had dual tipped mufflers. Rectangular mufflers Outlets are listed with GM for (LT1's) only. Hope you held onto the stock exhaust it's gonna be worth money. I would love to see your VIN and check the rpo codes.

The older I get the faster I was.