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Performance Specialist
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Discussion Starter #1
Hi guys,

We're developing Sport Springs for the Quattroporte and wanted to get some input as far as what you're looking for.

How much do you want the car lowered?
  • 3/4 inch
  • 1 inch
  • 1 1/4 inch
  • 1 1/2 inch
  • 1 3/4 inch
  • 2 inch
  • more

What kind of handling?
  • Same as stock, just lowered
  • Sportier but definitely not harsh
  • Sporty - will accept some harshness as long as the overall performance is much better

Also, if you're interested in getting a set, let us know, the list is growing.
 

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Discussion Starter #2
Any thoughts on this? We've had a large amount of requests for this product so I'm suprised that we haven't heard much response from the forum.

Without further input we intend on building a spring that would lower the car 1" and tighten the handling and reduce body roll without being harsh.
 

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I am very interested, but didn’t respond out of ignorance! I have a QP Sport which already has a slightly improved suspension (not sure exactly what) over the standard QP so I don’t know what benefits I might gain. Also, I didn’t know what effect lowering the car an inch would have on clearance over common speed bumps, speed humps, small inclines etc. The dealer as would be expected when I tried to ask of course was not very helpful, and I am not sure if it is because they feel it would be ill advised, or they just didn’t want to have to deal with any issues that might arise, especially warranty ones. Is the adaptive suspension of the QP Sport able to adapt to a different spring?
 

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Discussion Starter #4
Thanks for the reply, Yes the QP will adapt nicely to the new springs rates. A few people have now reported to me that 3/4 to 1 inch sounds about right to get a cleaner look without sacrificing drivability.

Any other opinions are appreciated.
 

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1" lower with 20" wheels

...Yes the QP will adapt nicely to the new springs rates. A few people have now reported to me that 3/4 to 1 inch sounds about right to get a cleaner look without sacrificing drivability...
As for the cleaner look, how do you think 1" lower on the QP Sport which has 20" wheels vs the standard 18 or 19" wheels would look? Good to know QP will adapt to lower / stiffer spring. This probably shows my ignorance, but it is still not clear to me what lowering the car 1" will mean in terms of usual roadside clearance issues!
 

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combo deal?

Any chance of a combo deal for the Larini exhaust and sport spring? :)
 

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Discussion Starter #7
As for the cleaner look, how do you think 1" lower on the QP Sport which has 20" wheels vs the standard 18 or 19" wheels would look? Good to know QP will adapt to lower / stiffer spring. This probably shows my ignorance, but it is still not clear to me what lowering the car 1" will mean in terms of usual roadside clearance issues!
I believe that lowering the car 1" would be an improvement, you may have to be more careful when going over speed bumps or in / out of driveways, standard driving should not be affected.. We lowered our GS quite a bit and can avoid the car bottoming out.

As far as 20" wheels go , that's just more a preference of whether or not you like larger wheels. I do think it could look much better depending on the wheel choice.
 

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I'm ok with the 1" drop, would like the same ride however. Can I have my wheel guy in Orange Co., Ca. install?
About time, the car sets to high.
 

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I think 1" not more than that keeps it more sporty and not "blingy". A little firmer, less body roll, but still nice ride. With 20" rims that'll probably fit the wheelwell nice. I see you have a chip for hp and response increase for the GS, do you have one for the QP yet? HP has always been a complaint when AMG sedans are easily pushing 500hp. 420-450hp in a QP would make me a customer.
 

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Drop me an inch! (QP Sport)

:cool: An inch drop seems as though it would be about right for appearance, and still maintain general driveability. The factory spring rates (and damper combinations) to me seem about right for what is really a big sedan, (even though it is a good handler).
 

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Discussion Starter #11
I think 1" not more than that keeps it more sporty and not "blingy". A little firmer, less body roll, but still nice ride. With 20" rims that'll probably fit the wheelwell nice. I see you have a chip for hp and response increase for the GS, do you have one for the QP yet? HP has always been a complaint when AMG sedans are easily pushing 500hp. 420-450hp in a QP would make me a customer.
Yes our chip for the QP is in fact a reality, we've sent them off to a few dealerships and customers for testing with positive results. You're looking at a similar hp upgrade to the coupe.

1" and an slightly more agressive spring rate are in the works now, keep an eye out!
 

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Yes our chip for the QP is in fact a reality, we've sent them off to a few dealerships and customers for testing with positive results. You're looking at a similar hp upgrade to the coupe.

1" and an slightly more agressive spring rate are in the works now, keep an eye out!
Sweet!!! I dont know why I said 420-450, I meant 450-520hp. What do you think, chip, airfilter, exhaust and what else might get close? I've got the AMGs in my sights. Can you imagine a QP wailin' like a 360 and blastin' away at a green light on an e55, cls55, or m5?

Oh but still beautiful enough to get the front at the valet...
 

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Any update on QP springs?

...we intend on building a spring that would lower the car 1" and tighten the handling and reduce body roll without being harsh.

Sounds good to me! Is there any news on the much awaited (at least by me!) QP Springs?
 

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Discussion Starter #14
2nd round of development, we're working on 'em. Actually I am looking for a customer to bring a car to Vegas for some final measurements. I have a short list of folks I may begin to call soon.
 

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Hi

Hello, new to forums, very interested in all QP info you can give, especially since i am in the Las Vegas area too. message me if anything.

Thanks.
 

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What kind of handling?
  • Same as stock, just lowered
  • Sportier but definitely not harsh
  • Sporty - will accept some harshness as long as the overall performance is much better

Where would you say your current springs for the coupe model fall in the above?

specifically for my car which is a 2004 with skyhook.

I am interested but do not want to sacrifice ride quality.
Will the new springs automatically lower the car or is that adjustable?

Thanks,
 

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Discussion Starter #17

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Discussion Starter #18
Where would you say your current springs for the coupe model fall in the above?

specifically for my car which is a 2004 with skyhook.

I am interested but do not want to sacrifice ride quality.
Will the new springs automatically lower the car or is that adjustable?

Thanks,
The current 4200 Springs are: Sporty - will accept some harshness as long as the overall performance is much better

Yes our springs will lower the car, for QP Models with adjustable skyhook shocks - the ride height will be somewhat adjustable.

The QP is a very soft ride, the springs we are working on currently are aimed at : Sportier but definitely not harsh
 
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