Sway bar upgrade question for a '09 Grand Marquis

[cascade]

Hi guys,

I have the 100A LS fleet edition (ex Los Angeles Avis rental) 2009 Grand Marquis with springs, (not the rear air suspension as on the 200A LS retail ones.)

http://i353.photobucket.com/albums/r388/cascade91/100_24601.jpg

The handling is awful with the stock front sway bar, and nothing for the rear --- no rear sway bar at all.
So yesterday I went and bought a pair of '04 Marauder front and rear sways, (Many thanks to forum member "gdsqdcr", on here, by the way ! ) and ordered the bracket for the rear one from the local dealer.

A guy at my tire shop used to be a Fox body Mustang suspension and brake expert, and he told me that I may need springs and shocks too.

We agreed that Monroe and KYB shocks would not be good but maybe Bilsteins or Koni could be good but could not find any that applied to the Panther chassis.

H & R or eibach springs were mentioned as good replacement choices.


But here's the thing:

The Marauder sways are a lot bigger looking than the Maurauder sways (which were 21 mm, measured with calipers, today, by the tire shop)
and if wonder if the change from stock '09 front sway/no rear at all, to the '04 Marauder sways, would work without changing my springs and shocks.


I was told that if later I changed again to ADDCO's, I would almost HAVE to get different and more robust springs and shocks to go with the ADDCO sways, and I do understand that.

The difference between th front stock and ADDCO is big:

http://i353.photobucket.com/albums/r388/cascade91/date/11-01-2010%20album/wmcimg1203s.jpg


But do you think it would be ok to run the Marauder sways on this stock 2009 one, and leave the springs and shocks as is?


I have about a year left on the factory warranty, which I hope would be unaffected by a change to '04 Marauder sways, or different shocks and springs than factory ones.

Advice and/or comments, anyone?

There is a huge knowledge base and enthusiasm level here !





Side note: I am just now thinking that I forgot to consider buying a Marauder in the first place, for not much difference in price I probably could have found a really nice low mileage Marauder !!!

[JOEMERC]

just adding the marauder sway bars front and rear will be night and day,and no need to change out springs and shocks and less shocks are bad .and to go one step further use aftermarket end links with polyeurathane bushings on rear bar.just in stalling a rear bar will make it handle alot better ......

[69marquis conv]

I installed a Marauder rear bar on my 04 GM with stock springs and it made a world of difference. My 04 did not previously have a rear sway bar. There's no change in the ride but it's much more level in turns.

[cascade]

The Marauder sways went onto the car yesterday ---- and the change from The small stock front one and NO sway bar at ALL on the rear, is simply awesome!!

Just amazing !!!!

The transformation is incredible.


I haven't lost the smooth ride, but now HAVE stability, control, and a VERY secure feeling at all times, where I did not have it before, on the stock Grand Marquis..

An easy bolt on job, too, so I would like to thank Anthony, "gdsqcr" of this forum who sold them to me at a super price, for making this happen.


You guys are great on here, and have *really* welcomed me and helped me a LOT even though all I have is a stock, decontented late model Grand Marquis!

So you guys need to now that a Marauder is a REALLY fine machine --- last of the true American muscle cars ....:bows:

[gdsqdcr]

Glad they fit and worked out for you.

Anthony

[Blackened300a]

The Marauder sways went onto the car yesterday ---- and the change from The small stock front one and NO sway bar at ALL on the rear, is simply awesome!!

Just amazing !!!!

The transformation is incredible.


I haven't lost the smooth ride, but now HAVE stability, control, and a VERY secure feeling at all times, where I did not have it before, on the stock Grand Marquis..

An easy bolt on job, too, so I would like to thank Anthony, "gdsqcr" of this forum who sold them to me at a super price, for making this happen.


You guys are great on here, and have *really* welcomed me and helped me a LOT even though all I have is a stock, decontented late model Grand Marquis!

So you guys need to now that a Marauder is a REALLY fine machine --- last of the true American muscle cars ....:bows:

Now check out Sparta performance for a Watts link and a set of control arms and you'll REALLY feel a difference!

[cascade]

Someone else with a '09 Grand Marquis "utlimate edition" fleet spec upgraded the sways (Addco) and a dual exhaust (Walker) and the intake with this on road result:

http://www.youtube.com/watch?v=D6Z-wk042sE

I am looking to get the same result as he did and still retain the comfort, and already have the Marauder sways and dual exhaust.

Hopefully the p71 MAF, ziptube
and airbox
will finish off th4 mods to get a result similar to this.