ZR-1 Net Registry Forums  

Go Back   ZR-1 Net Registry Forums > C4 ZR-1 > C4 ZR-1 Technical Postings

Reply
 
Thread Tools Display Modes
Old 01-03-2013   #11
2ZR1S
 
2ZR1S's Avatar
 
Join Date: Mar 2006
Location: Lubbock, TX
Posts: 79
Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

I have the same exhaust with a SS x pipe that I got from Summit Racing. My resonator broke also. You will need some straight pipe and the good wide band dynomax clamps and do it yourself. I need to get around to having mine welded.
__________________
Jon R. Member #490
1992 ZR-1 Arctic White/Red
2008 Z51 Silver 6 spd (Daily driver)
2ZR1S is offline   Reply With Quote
Old 01-03-2013   #12
alwayscode390
 
Join Date: Dec 2012
Location: STL
Posts: 492
Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

I have the Watson Headers installed too. Seems something that a muffler shop would have no problem doing ---
__________________
[SIGPIC][/SIGPIC]
01' Dodge Viper GTS
11' Ford Raptor
90' ZR-1 Corvette LPE #699
alwayscode390 is offline   Reply With Quote
Old 01-03-2013   #13
GOLDCYLON
 
GOLDCYLON's Avatar
 
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,154
Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

Quote:
Originally Posted by alwayscode390 View Post
Im thinking its 3" but Im not sure quite yet.

PM me the price , thanks ---
Pm sent
__________________
GOLDCYLON - 91 ZR-1 #2014
GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's)

GOLDCYLON - 11 CTS-V


Arizona State Director




91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat

90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat

11 RED/GREY CTS-V
GOLDCYLON is offline   Reply With Quote
Old 01-04-2013   #14
Bob Eyres
 
Join Date: Jul 2005
Location: Jupiter, Fl.
Posts: 815
Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

Quote:
Originally Posted by LGAFF View Post
Its 2.75 Challenge exhaust, take the resonator out, it necks down to 2-2.25 inches and cost you HP, out an Xpipe in place of it.

You will pick up 5-10hp
Good advice. I had the same system many years ago and found that, although it sounds sweet, it is probably the most restrictive system available next to stock.
I wouldn't waste money on an X pipe to fit the Borla. Go with a newer system if you've got the cash, or have a muffler shop remove the resonator and replace with two straight pipes until you find a system you like.

I went from the Borla to a stainless 3" B&B system with X pipe, and it's not for the faint of heart, (meaning wives. But I've become addicted to the Beast sounding like a Beast.

Also, if you're looking for a system that isn't too loud, but really flows well, search for the link to Hib Halverson's article on how he built a custom one with many stock parts that flows really well. Anybody have that link?
__________________
"It's about the car, not the people."

1991 ZR-1 White/Black #1236 (Owner since 1994).
Stock engine with bolt-ons: Hurst shifter,"Forced Air" intake, Coplon duct, Bee Cool Radiator, Demon coils, Jeal prom, Watson headers, X pipe, 3" B&B's, Rippie flywheel, 4:10 gears, A molds, Toyo Proxes-R888's 12.06@117mph. 1.76 60ft.

Last edited by Bob Eyres; 01-04-2013 at 11:17 AM.
Bob Eyres is offline   Reply With Quote
Old 01-04-2013   #15
alwayscode390
 
Join Date: Dec 2012
Location: STL
Posts: 492
Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

I really like the sound and the tips ... the squared off tips look great with the squared off tail lights IMO. It does drone a ton though.

I may look into another setup, I hear nothing but negative stuff about the Borlas on this forum.

Thanks ---
__________________
[SIGPIC][/SIGPIC]
01' Dodge Viper GTS
11' Ford Raptor
90' ZR-1 Corvette LPE #699
alwayscode390 is offline   Reply With Quote
Old 01-04-2013   #16
LGAFF
 
LGAFF's Avatar
 
Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

I think the Borla comments are alittle over reactive......once the resonator is removed the challenge systems has 2.75, bigger than most other exhaust systems. You can get a 3" SS X-PIPE on the challenge setup for a few hundred. The system is louder than most, but I am more interested in the power aspect, flappers, quiet ride are not important to me.....and buying an entirely new system to go 3" with no evidence its better than a 2.75" seems like a jump in faith. I am not sure anyone has dyno sheets that show other setups with more power, I think most are based on assumptions, and testing vs Corsa's 2.5 exhaust system.


If you want a quiet ride, and money no object go 3", but other than that not sure its worth the $ vs the Borla w/X-Pipe
__________________
LGAFF
90 #966-150K miles-sold
92 #234-sold
1987 Callaway TT #17
1991 ZR-1 #1359
LGAFF is offline   Reply With Quote
Old 01-04-2013   #17
alwayscode390
 
Join Date: Dec 2012
Location: STL
Posts: 492
Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

I always heard you can lose torque going 3" on a small block engine.

I think I am going to stay Borla with the x-pipe. I have an appointment for the exhaust shop on Monday ---
__________________
[SIGPIC][/SIGPIC]
01' Dodge Viper GTS
11' Ford Raptor
90' ZR-1 Corvette LPE #699
alwayscode390 is offline   Reply With Quote
Old 01-04-2013   #18
FU
 
FU's Avatar
 
Join Date: Mar 2004
Location: Found Member
Posts: 4,346
Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

Quote:
Originally Posted by XfireZ51 View Post
Dump the Borla! Get an Xpipe to replace the resonator, then do DynoMax Ultra Flow or even the VT muffs for drone control.
way too go !
__________________
Frank Urbo.

NCM Lifetime member # 982
Registry Founding # 237
FU is offline   Reply With Quote
Old 01-04-2013   #19
mike100
 
Join Date: Feb 2011
Location: San Marcos CA
Posts: 1,802
Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

If you have quiet mufflers, the X-pipe or H-pipe is the way to go. It doesn't get that much louder since the muffler is doing all the work. The stock resonators are terrible, but the magnaflow one is too fat and will scrape- plus it isn't even a true dual flow as it merges into one chamber.
mike100 is offline   Reply With Quote
Old 01-05-2013   #20
WARP TEN
 
WARP TEN's Avatar
 
Join Date: Apr 2007
Location: Lake Bluff, IL
Posts: 2,054
Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

Quote:
Originally Posted by LGAFF View Post
I think the Borla comments are alittle over reactive......once the resonator is removed the challenge systems has 2.75, bigger than most other exhaust systems. You can get a 3" SS X-PIPE on the challenge setup for a few hundred. The system is louder than most, but I am more interested in the power aspect, flappers, quiet ride are not important to me.....and buying an entirely new system to go 3" with no evidence its better than a 2.75" seems like a jump in faith. I am not sure anyone has dyno sheets that show other setups with more power, I think most are based on assumptions, and testing vs Corsa's 2.5 exhaust system.
FYI, here are a couple of links to Marc Haibeck's website regarding his dyno testing and evaluations of various exahust systems.

http://www.zr1specialist.com/HAT%20Web/Tech%20Info/corsa%20vs%20b&b.htm

http://www.zr1specialist.com/HAT%20Web/presentations/A%20Review%20of%20ZR-1%20Exhaust%20Systems.pdf
__________________
2016 Long Beach Red Z06 #10281 "POPS Z"
1995 Polo Green #409 "WARP TEN"--Haibeck 350/510 package, 4.10s, Hurst, Stock Exhaust with QTP Cutouts
--Sold but still running strong
1993 Quasar Blue #161 "HIL KING"
--Sold but still running strong, now with more than 120,000 miles
1967 Marlboro Maroon/Saddle Corvette Coupe 300 hp/4-spd
--Sold a long time ago
ZR-1 Net Registry Founding Member #95
NCM Lifetime Member
Favorite Quote--Attributed to Mickey Thompson:
"Too Much Horsepower is Almost Enough"
WARP TEN is online now   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 11:05 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright ZR-1 Net Registry 2020