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#4052944 - 03/18/20 12:02 PM MAC Catback Dual Exhaust for '03-'09
Hayseed119 Offline
n00b

Registered: 02/07/20
Posts: 11
Loc: Southwest Georgia
Is anybody running this setup? I haven't seen any reviews of it. I know some of their products are popular with Mustang guys.

I recognize that it is aluminized steel and not stainless, but I live in the deep south where my vehicles never encounter wintertime road salt. Most of the negative comments regarding aluminized steel seem to come from folks who live in the rust belt or on the coast.

The MAC kit is half the price of the Borla. The Borla system seems great but it just doesn't make sense for me to pay 1/4 of the value of the vehicle for a catback exhaust system.
_________________________
2005 Grand Marquis GS

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#4053630 - 03/21/20 12:48 PM Re: MAC Catback Dual Exhaust for '03-'09 [Re: Hayseed119]
2004_p71 Offline

no replacement for displacement
Posting Addict

Registered: 09/04/03
Posts: 15492
Loc: Quebec Canada
They dont seems to be making anything for the crown vic .
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new best time 13.079 @ 105 1.8 60'

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#4053642 - 03/21/20 01:50 PM Re: MAC Catback Dual Exhaust for '03-'09 [Re: 2004_p71]
Hayseed119 Offline
n00b

Registered: 02/07/20
Posts: 11
Loc: Southwest Georgia
I've seen this kit on eBay some, so I think they are still making one.

https://www.macautoparts.net/crown-victo...hout-resonators
_________________________
2005 Grand Marquis GS

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#4053646 - 03/21/20 02:32 PM Re: MAC Catback Dual Exhaust for '03-'09 [Re: Hayseed119]
a_d_a_m Online   drunk
3 Orange Whips
Metroplectic

Registered: 10/25/05
Posts: 26529
Loc: Cleveland, OH
Judging by your previous posts, you have a 2011 SAP. It should already have a dual exhaust. That kit just looks like a standard Walker replacement and would be a step back from the OE system.

What are you trying to accomplish? Better sound? Performance?

(please consider putting your car info in your signature, as it helps us answer tech questions)
_________________________
'91 LTD Country Squire (POTM Mar. '19) | '03 Marauder (POTM Nov. '10, Jul. '20) | 2010 P7B

formerly: '02 MGM, '04 MGM, '04 MGM v2.0, '04 MM, '07 P71 (POTM Feb. '18), '04 CVLX (POTM Jun. '19), '03 SAP P71

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#4053722 - 03/21/20 07:54 PM Re: MAC Catback Dual Exhaust for '03-'09 [Re: a_d_a_m]
Hayseed119 Offline
n00b

Registered: 02/07/20
Posts: 11
Loc: Southwest Georgia
Sorry for not including more info.

I have a 2005 Mercury Grand Marquis with factory single exhaust. I'd like to improve the performance and sound with a dual exhaust without spending $900 on a catback system.


Edited by Hayseed119 (03/21/20 07:56 PM)
_________________________
2005 Grand Marquis GS

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#4053892 - 03/22/20 11:43 PM Re: MAC Catback Dual Exhaust for '03-'09 [Re: Hayseed119]
a_d_a_m Online   drunk
3 Orange Whips
Metroplectic

Registered: 10/25/05
Posts: 26529
Loc: Cleveland, OH
Ah, okay. Well, in that case, a dual exhaust might be a nice upgrade, but I wouldn't buy that one.

https://www.rockauto.com/en/moreinfo.php?pk=5907603&cc=1430662&jsn=451

Likely the same quality at a lower price.

Alternately, find a CVPI in the junkyard and snip out the H-pipe and other tailpipe/muffler.
_________________________
'91 LTD Country Squire (POTM Mar. '19) | '03 Marauder (POTM Nov. '10, Jul. '20) | 2010 P7B

formerly: '02 MGM, '04 MGM, '04 MGM v2.0, '04 MM, '07 P71 (POTM Feb. '18), '04 CVLX (POTM Jun. '19), '03 SAP P71

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#4054144 - 03/23/20 10:03 PM Re: MAC Catback Dual Exhaust for '03-'09 [Re: Hayseed119]
Doublebass73 Offline
Over the Hill

Registered: 07/28/04
Posts: 2741
Loc: New Hampshire
The Mac kit is literally just Walker aluminized pipes. If you price these parts out individually you should be able to get them all for around $300 instead of $444. From the Mac ad:

This is a Made in USA OE style replacement exhaust system for a

2003 to 2009 Ford Crown Victoria & Mercury Grand Marquis 4.6L , all models , Including Police Package

Cat Back System Includes:

1x Part# 50326 94018 H pipe after converters
1x Part# 21435 P/S muffler
1x Part# 21438 D/S muffler
1x Part# 56111-1 1st section tail pipe without resonator
1x Part# 56111-2 2nd section tail pipe without resonator
1x Part# 56112-1 1st section tail pipe without resonator
1x Part# 56112-2 2nd section tail pipe without resonator
4x Part# 31336 gaskets
2x Part# mc200hd clamps
2x Part# 55260 connectors

Note: tail pipe shipped in 2 parts
_________________________
2005 Grand Marquis


"Live free or die: Death is not the worst of evils."
General John Stark, American Continental Army



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#4054202 - 03/24/20 09:16 AM Re: MAC Catback Dual Exhaust for '03-'09 [Re: Doublebass73]
Hayseed119 Offline
n00b

Registered: 02/07/20
Posts: 11
Loc: Southwest Georgia
Originally Posted By a_d_a_m
Ah, okay. Well, in that case, a dual exhaust might be a nice upgrade, but I wouldn't buy that one.

https://www.rockauto.com/en/moreinfo.php?pk=5907603&cc=1430662&jsn=451

Likely the same quality at a lower price.

Alternately, find a CVPI in the junkyard and snip out the H-pipe and other tailpipe/muffler.



Originally Posted By Doublebass73
The Mac kit is literally just Walker aluminized pipes. If you price these parts out individually you should be able to get them all for around $300 instead of $444. From the Mac ad:

This is a Made in USA OE style replacement exhaust system for a

2003 to 2009 Ford Crown Victoria & Mercury Grand Marquis 4.6L , all models , Including Police Package

Cat Back System Includes:

1x Part# 50326 94018 H pipe after converters
1x Part# 21435 P/S muffler
1x Part# 21438 D/S muffler
1x Part# 56111-1 1st section tail pipe without resonator
1x Part# 56111-2 2nd section tail pipe without resonator
1x Part# 56112-1 1st section tail pipe without resonator
1x Part# 56112-2 2nd section tail pipe without resonator
4x Part# 31336 gaskets
2x Part# mc200hd clamps
2x Part# 55260 connectors

Note: tail pipe shipped in 2 parts


I just assumed that the MAC kit was higher quality because of the price, but comparing the Walker and MAC diagrams confirms what y'all are saying - MAC kit looks like it is just a rebranded Walker.

So which is better new Walker system or junkyard P71 exhaust?
_________________________
2005 Grand Marquis GS

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#4054204 - 03/24/20 09:20 AM Re: MAC Catback Dual Exhaust for '03-'09 [Re: Hayseed119]
Doublebass73 Offline
Over the Hill

Registered: 07/28/04
Posts: 2741
Loc: New Hampshire
A junkyard P71 exhaust will last longer.
_________________________
2005 Grand Marquis


"Live free or die: Death is not the worst of evils."
General John Stark, American Continental Army



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#4054648 - 03/26/20 12:33 AM Re: MAC Catback Dual Exhaust for '03-'09 [Re: Hayseed119]
a_d_a_m Online   drunk
3 Orange Whips
Metroplectic

Registered: 10/25/05
Posts: 26529
Loc: Cleveland, OH
Correct. JY P71.
_________________________
'91 LTD Country Squire (POTM Mar. '19) | '03 Marauder (POTM Nov. '10, Jul. '20) | 2010 P7B

formerly: '02 MGM, '04 MGM, '04 MGM v2.0, '04 MM, '07 P71 (POTM Feb. '18), '04 CVLX (POTM Jun. '19), '03 SAP P71

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#4055710 - 04/01/20 09:10 AM Re: MAC Catback Dual Exhaust for '03-'09 [Re: a_d_a_m]
Hayseed119 Offline
n00b

Registered: 02/07/20
Posts: 11
Loc: Southwest Georgia
Originally Posted By Doublebass73
A junkyard P71 exhaust will last longer.


Originally Posted By a_d_a_m
Correct. JY P71.


Thanks again for the input, fellas.
_________________________
2005 Grand Marquis GS

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#4055772 - 04/01/20 01:04 PM Re: MAC Catback Dual Exhaust for '03-'09 [Re: Hayseed119]
CrystalPistol Offline

Over the Hill

Registered: 10/16/01
Posts: 2164
Loc: The Shenandoah Valley of Va.
Bought my Mercury GM in 2001. Single exhaust. In sprng of 2002, I worked a wreck on I-81 one rainy afternoon, was spring break. Girl in a VW flying low hit a 2001 CV-HHP in the rear fender, elderly driver of CV was slow reacting to the Pitt, the CV spun on the wet road & banged up all 4 sides on guard rail, air bags deployed too. Elderly couple from down south, trunk had a lift for the chair for passenger (wife of driver). Car was towed to local shop. Was exact same color of my MGM too.

Couple, maybe 3 weeks later, I was at that local shop, wrecker driver mechanic mentioned the red CV-HPP, said he started to call me, insurance adjuster was there a few days ago, car was totaled and he hauled it to a salvage yard in Vinton.

I later drove to Vinton, visited Old Dominion Auto Parts, there was the CV-HPP sitting in the yard near the office. 13,xxx miles on it. I go in, guy behind counter knows me from back in the '70s, he recognized my voice. We talk of old days in Lynchburg, Wards Road, cruising, family, etc. I then inquire about the CV-HPP exhaust from cats back, brackets, etc, and all 4 alloy Lacey Spoked wheels on the ground and FS spare with the tires (Goodyear LS-As) with caps & nuts. In luck, car due to be stripped of engine, trans, seats, etc … and then going out in back of yard. $300 … I'll take them.

My '77 F150 comes home with it all in the bed, they lifted rear of car with their yard crane doodlebug, torched the rear CAs, pulled DS, moved rear out of way, torched the pipes just ahead of flanges, put hangers & brackets in box with nuts & centers for wheels. Maybe 30 minutes as I stood there.

All fit like was made for the Mercury. Tires took us out west in 2005 … and back. Sounded about same, maybe slightly throatier under load, I did get tail pipes to eliminate just the resonators. Hardest part was getting my MGM high enough on the carport to let rear drop low enough to get pipes over the axle.

The CV-HPP dual exhaust is/was same materials as CVPI except for the resonators, the mufflers & pipes look as good now as then. They hold up well. Well worth the effort, I've never had aluminized steel last so well. If you can find one now, P71 is the way to go for the exhaust, even if you decide on different mufflers later.


Edited by CrystalPistol (04/01/20 01:14 PM)
_________________________

2001 MercGM since 2001, 93K miles, Addco F&R, Bilstein HDs, J-mod, factory duals, Reese Hidden Hitch, AirLifts, Weathertech, XM, easy on gas, 17x7s with Goodyear RS-As make a smooth ride. All as of January 2020




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#4055930 - 04/02/20 08:25 AM Re: MAC Catback Dual Exhaust for '03-'09 [Re: CrystalPistol]
Hayseed119 Offline
n00b

Registered: 02/07/20
Posts: 11
Loc: Southwest Georgia
Originally Posted By CrystalPistol
Bought my Mercury GM in 2001. Single exhaust. In sprng of 2002, I worked a wreck on I-81 one rainy afternoon, was spring break. Girl in a VW flying low hit a 2001 CV-HHP in the rear fender, elderly driver of CV was slow reacting to the Pitt, the CV spun on the wet road & banged up all 4 sides on guard rail, air bags deployed too. Elderly couple from down south, trunk had a lift for the chair for passenger (wife of driver). Car was towed to local shop. Was exact same color of my MGM too.

Couple, maybe 3 weeks later, I was at that local shop, wrecker driver mechanic mentioned the red CV-HPP, said he started to call me, insurance adjuster was there a few days ago, car was totaled and he hauled it to a salvage yard in Vinton.

I later drove to Vinton, visited Old Dominion Auto Parts, there was the CV-HPP sitting in the yard near the office. 13,xxx miles on it. I go in, guy behind counter knows me from back in the '70s, he recognized my voice. We talk of old days in Lynchburg, Wards Road, cruising, family, etc. I then inquire about the CV-HPP exhaust from cats back, brackets, etc, and all 4 alloy Lacey Spoked wheels on the ground and FS spare with the tires (Goodyear LS-As) with caps & nuts. In luck, car due to be stripped of engine, trans, seats, etc … and then going out in back of yard. $300 … I'll take them.

My '77 F150 comes home with it all in the bed, they lifted rear of car with their yard crane doodlebug, torched the rear CAs, pulled DS, moved rear out of way, torched the pipes just ahead of flanges, put hangers & brackets in box with nuts & centers for wheels. Maybe 30 minutes as I stood there.

All fit like was made for the Mercury. Tires took us out west in 2005 … and back. Sounded about same, maybe slightly throatier under load, I did get tail pipes to eliminate just the resonators. Hardest part was getting my MGM high enough on the carport to let rear drop low enough to get pipes over the axle.

The CV-HPP dual exhaust is/was same materials as CVPI except for the resonators, the mufflers & pipes look as good now as then. They hold up well. Well worth the effort, I've never had aluminized steel last so well. If you can find one now, P71 is the way to go for the exhaust, even if you decide on different mufflers later.


Thanks for sharing your experience. We are under shelter in place orders right now, but once they are lifted, I will have to hit the junkyard.


Edited by Hayseed119 (04/02/20 08:38 AM)
_________________________
2005 Grand Marquis GS

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#4056044 - 04/02/20 11:44 PM Re: MAC Catback Dual Exhaust for '03-'09 [Re: Hayseed119]
a_d_a_m Online   drunk
3 Orange Whips
Metroplectic

Registered: 10/25/05
Posts: 26529
Loc: Cleveland, OH
Remember that the exhaust is different for '02- Panthers, so search for a 2003+.

We have had members make the older stuff work, but it requires slight modifications to (I believe) the H-pipe.
_________________________
'91 LTD Country Squire (POTM Mar. '19) | '03 Marauder (POTM Nov. '10, Jul. '20) | 2010 P7B

formerly: '02 MGM, '04 MGM, '04 MGM v2.0, '04 MM, '07 P71 (POTM Feb. '18), '04 CVLX (POTM Jun. '19), '03 SAP P71

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