12-29-2023 | #11 |
Join Date: Sep 2018
Location: Groton, CT
Posts: 382
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Re: '91 ZR1 different Mufflers and Control Arms?
92 White, White #0448.
I bought it dead stock with 18k miles from the original owner. Still had the original gatorbacks on it. Sent from my Pixel 4a (5G) using ZR-1 Net Registry mobile app
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1992 ZR1 #442, 2 tops, White, White, Haibeck 415, 3.90 gear, Coilovers 2018 Audi RS5, 2.9 V6 Twin Turbo, Auto, Black, Black 2021 Audi Q3, 2.0T, 8 spd Tiptronic, Navarro Blue metallic, Pearl Beige Last edited by Subfixer; 12-29-2023 at 08:42 PM. |
12-29-2023 | #12 |
Join Date: Nov 2014
Location: WI
Posts: 121
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Re: '91 ZR1 different Mufflers and Control Arms?
Then were on the same page. I bought mine with 9,000 miles on it. The original owner already put rectangular LT1 muffler eliminators on it. I also have my original gy gator back tires with 9,000 miles on them.
The older I get the faster I was. |
12-29-2023 | #13 |
Join Date: Aug 2006
Location: McLean, VA
Posts: 3,721
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Re: '91 ZR1 different Mufflers and Control Arms?
I believe, starting in 92, all C4s including ZR-1s wer fitted with black rectangular exhaust tips. My 94 had rectangular tips from factory.
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12-29-2023 | #14 |
Join Date: Nov 2014
Location: WI
Posts: 121
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Re: '91 ZR1 different Mufflers and Control Arms?
Yes rectangular outlet mufflers started in 1992 on c4's (LT1's) but according to general motors corporation they were never put on a LT5's And there's no documentation in the general motors parts catalog that says different.
The older I get the faster I was. |
12-29-2023 | #15 |
Join Date: Oct 2019
Location: Raymore, MO
Posts: 135
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Re: '91 ZR1 different Mufflers and Control Arms?
I definitely respect all the knowledge in these forums and mean zero disrespect in this post. This is what I've seen and read:
Regular C4s: - '84s had downturned exhaust, two circular tips per muffler - '85-'91 had straight out the back, two circular tips per muffler - '92-'96 had rectangular tips, one per side; incidentally, 4th gen Z28s had the same-shaped tips, '93-'02 ZR-1s: - '89 prototypes had two square tips per side - '90-'91 had two square tips per side - '92-'95 had rectangular tips, one per side The most interesting thing I've observed... I have a '96 LT4 I bought completely stock, and a '95 ZR-1 that is still all stock (5900 miles)... the ZR-1 exhaust (mine at least, and other rectangular ZR-1s I've seen)... is at a bit of an angle on each side. It's very slight, but noticeable. At first I thought mine was bent, until I looked at other ones more closely and saw a local '93 in person as well. Really weird compared to the stock exhaust on my '96! I have not, however, measured the widths of the LT1/4 vs. ZR-1 rectangular tips. They may be the same, and I wonder if the slight angle of the ZR-1 tips was to make them appear to fit the wider rear end better. Mike
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1995 ZR-1 #004 - Yellow/Black 1996 LT4 #3828 - Yellow/Beige/LT4/Z51 - 1 of 4 |
12-30-2023 | #16 |
Join Date: Oct 2004
Location: Folsom CA
Posts: 1,653
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Re: '91 ZR1 different Mufflers and Control Arms?
I've been a ZR-1 owner for 20 years now.
Every last 1992 through 1995 ZR-1 I've ever seen has had the square tips. I like them so much that someday I plan to cut the oval tips off of the Flowmasters I have on my Z and weld on the square tips. I love the sound of my Flowmasters, just have never liked their tips very much. They are way better than the stock 90-91 tips, but still not optimal. Crabs
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TomC '90ZR1 #792 Honorary Pirate [B]If it ain't FUN, you're doing something terribly WRONG. [/B] |
12-30-2023 | #17 |
Join Date: Nov 2014
Location: WI
Posts: 121
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Re: '91 ZR1 different Mufflers and Control Arms?
Just to make sure that I'm correct. We're talking about (LT1) style Rectangle tip mufflers.. is that correct?Screenshot_20231229_232428_Chrome.jpg
The older I get the faster I was. |
12-30-2023 | #18 |
Join Date: Nov 2014
Location: WI
Posts: 121
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Re: '91 ZR1 different Mufflers and Control Arms?
My point again STOCK OE exhaust GM only shows one exhaust and muffler for all 5 production years of c4 ZR-1's. 20231229_165154.jpg20231229_165242.jpg
The older I get the faster I was. |
12-30-2023 | #19 | |
Join Date: May 2010
Location: Japan
Posts: 3,582
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Re: '91 ZR1 different Mufflers and Control Arms?
Quote:
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Craig "ZR-1 NO KA 'OI" "ZR-1 ICHIBAN" 1995 #228 Black/Black with Dunn Heads ZR-1 owner since September 2003 ZR-1 Net Registry Founding Member #0074 NCM Lifetime Member #2048 |
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12-30-2023 | #20 | |
Join Date: May 2010
Location: Japan
Posts: 3,582
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Re: '91 ZR1 different Mufflers and Control Arms?
Quote:
Sorry, but that is not true. Here is another 95 ZR-1, check toward the end of the video. https://youtu.be/-el21jCS7_A?si=iWtLyk7osn6tCJxh Here is 94 ZR-1 https://youtu.be/VvBorFqRRd0?si=n3mM7TEYVSY4Ydk9 Here is a 93 ZR-1 https://youtu.be/kbb4m692sgw?si=JygMh6HQy8Iwt9Ce Sent from my iPhone using ZR-1 Net Registry
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Craig "ZR-1 NO KA 'OI" "ZR-1 ICHIBAN" 1995 #228 Black/Black with Dunn Heads ZR-1 owner since September 2003 ZR-1 Net Registry Founding Member #0074 NCM Lifetime Member #2048 Last edited by HAWAIIZR-1; 12-30-2023 at 01:41 AM. |
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