Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow? --- - ZR-1 Net Registry Forums

alwayscode390 · 01-03-2013

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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GOLDCYLON · 01-03-2013

Quote:

Originally Posted by alwayscode390

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 ?

alwayscode390 · 01-03-2013

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

PM me the price , thanks

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LGAFF · 01-03-2013

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

alwayscode390 · 01-03-2013

Custom built x-pipe in place of the resonator?

Sounds like an awesome plan!!!

Thanks for that

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LGAFF · 01-03-2013

Same setup with X Pipe: 350ci 391 rwhp

http://www.youtube.com/watch?v=8Y4Re5TqIw4

alwayscode390 · 01-03-2013

What were their other mods?

That sounds great!!! I really appreciate the idea ---

Daniel_Mc · 01-03-2013

I've run the random tech mid system for years and IMHO is a great bag for the price. All SS and Mandrel bent in your choice of size with or without cats.

http://www.randomtechnology.com/

Daniel

XfireZ51 · 01-03-2013

Quote:

Originally Posted by alwayscode390

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.

alwayscode390 · 01-03-2013

Ill look in to those mufflers, thanks for the suggestions.

If I just go x-pipe, is this the setup you were using Daniel?

"C4 Converter/X-pipe

84-96

350/5.7L

Stainless DualCat X-Pipe System (for use with headers- call for adapter pipe information)

172-30915"

I don't see an option for "no cats" and everything else says "except zr-1" ---

01-03-2013	#1
alwayscode390 Join Date: Dec 2012 Location: STL Posts: 492	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 --- __________________ [SIGPIC][/SIGPIC] 01' Dodge Viper GTS 11' Ford Raptor 90' ZR-1 Corvette LPE #699

01-03-2013	#3
alwayscode390 Join Date: Dec 2012 Location: STL Posts: 492	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 --- __________________ [SIGPIC][/SIGPIC] 01' Dodge Viper GTS 11' Ford Raptor 90' ZR-1 Corvette LPE #699

01-03-2013	#4
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	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 __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

01-03-2013	#5
alwayscode390 Join Date: Dec 2012 Location: STL Posts: 492	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 --- __________________ [SIGPIC][/SIGPIC] 01' Dodge Viper GTS 11' Ford Raptor 90' ZR-1 Corvette LPE #699

01-03-2013	#6
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	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 __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

01-03-2013	#8
Daniel_Mc Join Date: Jan 2007 Location: Pineville, LA Posts: 586	Re: Old Borla Exhaust from LPE ... big resonator is rattling, replace with Magnaflow? I've run the random tech mid system for years and IMHO is a great bag for the price. All SS and Mandrel bent in your choice of size with or without cats. http://www.randomtechnology.com/ Daniel