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09-05-2017
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#1 |
Join Date: Dec 2007
Location: Fremont,Ca
Posts: 3,079
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A question about stock 91 exhaust.
I've gottin really bored with my car lately and have been thinking about a cat back system but room for my stock exhaust is limited. When the the stock system is broken down what's the longest section,is the resonator bolted on? Then to figure out which system? The tips for the Borla system look the best,don't like the look of CORSA stamped on all 4 tips. Has the drone issue been eliminated with the Borla system? Another option,one I've always liked the idea of is have a muffleler shop duplicate the 91 tips,put them on the aftermarket muffelers and have the muffelers powder coated black. One major benefits to getting the exhaust off the car I can fineally install my C beam plates and my Hurst shifter. Thanks.
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09-05-2017
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#2 |
 
Join Date: Sep 2008
Location: Mullica Hill, New Jersey
Posts: 2,593
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Re: A question about stock 91 exhaust.
It is ONE BIG piece.
All welded, from resonator to tips!  Marty |
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09-05-2017
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#3 | |
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Join Date: Oct 2004
Posts: 1,890
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Re: A question about stock 91 exhaust.
Quote:
I have a later LT4 system here and it occupies something near 4'6" width and 9'6" length. If you don't have 5' X 10' available on the wall or standing storage is an issue. Last edited by WVZR-1; 09-05-2017 at 11:54 AM. |
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09-05-2017
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#4 |
 Join Date: Apr 2004
Location: ATL. GA.
Posts: 2,170
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Re: A question about stock 91 exhaust.
I hung my old exhaust on the wall.
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Steve 1990 Steel Blue/Black #2355 1990 Red/Red #1473 1991 Quasar /Black #118 Sold 1991 Turquoise/Black #766 Parted Out 1993 Yellow/White #179 Sold 1990 Black/Gray #1361 Headers/4:10s Sold |
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09-05-2017
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#5 |
Join Date: Jun 2006
Location: Sparks, NV
Posts: 2,852
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Re: A question about stock 91 exhaust.
Yup, it's one big piece. Just went through the same process myself. It is my understanding only Corsa, BBE Fusion and the OBX/Maximizer have no drone. I went with the Maximizer because I'm cheap and I don't want a crazy loud exhaust. I couldn't resist a full stainless exhaust with no drone for under $400 shipped. Like many here I tried many different combinations on the last car. They all droned badly. Ended up with a Corsa on that car. The FBI guys came up with a custom 3inch system utilizing the Dynomax muffler and a vacuum activated flapper exhaust valve out of a C6 Z06 that is the best of both worlds, loud with drone but who cares and subdued with no drone, depending on valve position. But then you get that with the BBE Fusion too.
Should have mu install done in the next few weeks. H
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90'ZR-1 #1461 Red/Black Ported Intake, Degreed Cams, OBX Headers & Exhaust, Fidanza FW, Secondary Delete, Custom tune, C6 GS Wheels. Sold 08 C6 Z51 Crystal Red Metallic Sold Vararam Intake, Tune, Sold 05 C6 Z51 Red/Black Sold 90'ZR-1 #1723 Black/Gray Sold but not forgotten 91' Z51 L98 White Vert. My First, you always remember your first. Sold. |
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09-05-2017
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#6 | |
  Join Date: Feb 2007
Location: Komoka, Ontario, Canada
Posts: 588
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Re: A question about stock 91 exhaust.
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1991 ZR-1 (SN666) - Haibeck 510; 410s, Corsa, SW Headers; Hurst SS; DeWitts Rad; RC Injectors; LEDs throughout; `93 MF Sawblades 2016 Z06 - Stock 1971 Stingray 454 LS5 - Sold |
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09-05-2017
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#7 | |
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
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Re: A question about stock 91 exhaust.
Quote:
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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09-05-2017
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#8 |
 Join Date: Aug 2015
Location: Magnolia, Texas
Posts: 884
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Re: A question about stock 91 exhaust.
I ended up going SW all the way back. I liked the tone of their mufflers and the tips. Fit the exhaust openings beautifully.. yes, there is some drone at 1800 rpm under light load. Had flowmaster on it and had to take it out in one piece. It was "rust welded" solid. Stainless or titanium are the best solution. Don't know anyone marketing titanium exhaust for the ZR-1 yet.[ATTACH][ATTACH]
Sent from my QTAIR7 using ZR-1 Net Registry mobile app |
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09-05-2017
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#9 |
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Join Date: Dec 2007
Location: Fremont,Ca
Posts: 3,079
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Re: A question about stock 91 exhaust.
The Billy Boat system was what I meant instead of Borla,I really like the tips on the BB system but if I can't find anywhere to stash the stock system I might be stuck until I get more room. The BB Fusion is something I might look into. Is there any drone issues with the BB system. Got a quote for the basic system and it's $1100 shipped to my door,polished extra components is an option.
Last edited by Z51JEFF; 09-05-2017 at 06:38 PM. |
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09-05-2017
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#10 | |
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Join Date: Feb 2007
Location: Komoka, Ontario, Canada
Posts: 588
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Re: A question about stock 91 exhaust.
Quote:
Jeff, If you pm me your e-mail, I'll send you a few pics - I've run into a problem again trying to post pictures to the network.
__________________
1991 ZR-1 (SN666) - Haibeck 510; 410s, Corsa, SW Headers; Hurst SS; DeWitts Rad; RC Injectors; LEDs throughout; `93 MF Sawblades 2016 Z06 - Stock 1971 Stingray 454 LS5 - Sold |
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