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Old 01-03-2013   #1
alwayscode390
 
Join Date: Dec 2012
Location: STL
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Question Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow? ---

The car currently has an old Borla exhaust installed by Lingenfelter back in 1993.

My big round mid-car "resonator" was hit while the car was being backed off of a tow truck by the previous owner.

It dented it , and now it rattles like the insides broke apart. Its LOUD like a catalytic converter heat shield making contact with metal somewhere.

Are these straight-through mufflers like the magnaflows?

If so, can I just replace it with a straight-through magnaflow muffler?

This is the big muffler in the center, before the two smaller ones at the rear by the tips.

It looks like it has both pipes from the headers entering it on either side, then exiting it on either side.



Thanks for the advice , thanks ---
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Old 01-03-2013   #2
GOLDCYLON
 
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Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

Quote:
Originally Posted by alwayscode390 View Post
The car currently has an old Borla exhaust installed by Lingenfelter back in 1993.

My big round mid-car "resonator" was hit while the car was being backed off of a tow truck by the previous owner.

It dented it , and now it rattles like the insides broke apart. Its LOUD like a catalytic converter heat shield making contact with metal somewhere.

Are these straight-through mufflers like the magnaflows?

If so, can I just replace it with a straight-through magnaflow muffler?

This is the big muffler in the center, before the two smaller ones at the rear by the tips.

It looks like it has both pipes from the headers entering it on either side, then exiting it on either side.



Thanks for the advice , thanks ---

I have a spare Corsa resonator that you could plumb in there. Any exhaust shop worth its salt could make it fit. Is the exhaust 2.5 ot 3.0 ?
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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
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Old 01-03-2013   #3
alwayscode390
 
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Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

Im thinking its 3" but Im not sure quite yet.

PM me the price , thanks ---
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Old 01-03-2013   #4
LGAFF
 
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Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

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
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Old 01-04-2013   #5
Bob Eyres
 
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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?
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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.
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Old 01-03-2013   #6
GOLDCYLON
 
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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
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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
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Old 01-03-2013   #7
alwayscode390
 
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Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

Custom built x-pipe in place of the resonator?

Sounds like an awesome plan!!!

Thanks for that ---
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Old 01-03-2013   #8
LGAFF
 
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Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

Same setup with X Pipe: 350ci 391 rwhp

http://www.youtube.com/watch?v=8Y4Re5TqIw4
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Old 01-03-2013   #9
alwayscode390
 
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Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

What were their other mods?

That sounds great!!! I really appreciate the idea ---
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Old 01-03-2013   #10
XfireZ51
 
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Default Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow?

Quote:
Originally Posted by alwayscode390 View Post
What were their other mods?

That sounds great!!! I really appreciate the idea ---
Dump the Borla! Get an Xpipe to replace the resonator, then do DynoMax Ultra Flow or even the VT muffs for drone control.
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