A-Spec vs. Mugen

[tq4]

Does anybody know how the A-Spec suspension compares to the Mugen?
Is the Mugen really worth the extra $$?
The roads around me are pretty lousy, and I've heard good things about the ride quality on the A-spec.
How does the Mugen ride?

[Noel]

I guess Joker would be a good time to chime in soon. But if you mentioned poor road conditions, either will feel less comfortable but perform better when compared with the OEM setup.

[LannyMCS]

I don't think I've come across anyone who has first hand experience with both set ups. I have the A-Spec, and my feeling would be that the Mugen is the next step up in terms of sportiness, probably a little bit lower, and probably rides a little stiffer as well. Joker, got any close up pics of the Mugem drop?

[johnej]

welcome tq4

[SAZABI]

I don't want my car to be lowered....
anyone knows how much it lowers with mugen non-adjustable?
and the minimum lowering for adjustable?

stock height would be perfect, tolerence is 0.5"

[Jimmmmmmah!!!]

I don't want my car to be lowered....
anyone knows how much it lowers with mugen non-adjustable?
and the minimum lowering for adjustable?

stock height would be perfect, tolerence is 0.5"

http://www.kingmotorsports.com/product.asp?product=76&vehicle=TSX

I'm assuming you were referring to this? It lowers it to about 25mm which is about a 1" drop in general. As for the 5 way adjustables, i'm not sure what the mininum is in general. If you're not looking to lower your car, you could just get other mods that will help reduce body roll and increase handling. Kind of a waste of money to install aftermarket suspension if you're not going to lower it.

-Jimmy

[SAZABI]

http://www.kingmotorsports.com/product.asp?product=76&vehicle=TSX

I'm assuming you were referring to this? It lowers it to about 25mm which is about a 1" drop in general. As for the 5 way adjustables, i'm not sure what the mininum is in general. If you're not looking to lower your car, you could just get other mods that will help reduce body roll and increase handling. Kind of a waste of money to install aftermarket suspension if you're not going to lower it.

-Jimmy

want it stiffer, but not lowered.

don't want sway bars tho. that's diff stiffening.

[Jimmmmmmah!!!]

If you really want a stiffer ride, then look into getting some shocks to firm up the ride a bit.

-Jimmy

[CL9]

Here is the spec of the Mugen suspension:

Non-adj suspenions, 25mm drop F&R, and spring rate is 5.4K Front and 3.4K Rear.

[SAZABI]

If you really want a stiffer ride, then look into getting some shocks to firm up the ride a bit.

-Jimmy

:nod: that's a good idea!!

[TodaSi]

Here is the spec of the Mugen suspension:

Non-adj suspenions, 25mm drop F&R, and spring rate is 5.4K Front and 3.4K Rear.

Sorry for my ignorance, but what are the stock spring rates front and rear? The Mugen seems soft, which is nice.

-Chad, who runs 12k front and 10k rear in his 2000 lb race car :eek:

[Joker]

I guess Joker would be a good time to chime in soon.
I can't say enough good things about the Mugen suspension, but I have yet to drive a TSX with the A-Spec suspension.
So I am sad to say that I am not of much help on this one :donno:

[Joker]

Oh, and I almost forgot :D

Hello, and welcome to the Club tq4 :wavey:

[TodaSi]

Sorry for my ignorance, but what are the stock spring rates front and rear? The Mugen seems soft, which is nice.



Anyone, anyone? Bueller?, Bueller?, Bueller?, Bueller?.

[MemphisRheins]

yeah saz, if u dont lower it ur really not gonna be feeling too much of the stiffness u want, sorry to say, but thats kinda just like throwing money down the shitter for no reason, ur really not gonna get performance w/out at least the 1 inch of the mugen/Aspec/Comptech... Front and Rear Sways would prob make the biggest difference w/ out lowering it, but u say that u dont want that... So Maybe Shocks, i dunno...you gotta sacrafice luxury for sportness... sorry bud

[LannyMCS]

Sorry for my ignorance, but what are the stock spring rates front and rear? The Mugen seems soft, which is nice.

-Chad, who runs 12k front and 10k rear in his 2000 lb race car :eek:

5K F, 3.1k R, if we're stating it that way :D.......

[speedyturtle]

Here is the spec of the Mugen suspension:

Non-adj suspenions, 25mm drop F&R, and spring rate is 5.4K Front and 3.4K Rear.


So if Mugen is 5.4 F and 3.4 R
Stock is 5.0 F and 3.1 R
Aspec is ?? ??

Does it really make that big of a difference to upgrade?

[tuan209]

ill compare the two shortly when my mugen adjustables arrive. i currently have the aspec, so i can do a direct comparison. =D

[LannyMCS]

First of all, I'm going to convert these to lb/in; I can't comprehend the difference in kg :D

Mugen 305 F 191R

Stock 280 F 175 R

A-Spec 308 F 192R

Comptech 110-155 312 F 170 R

Okay, now the Comptech is progressive, so that rate listed is dependent on how far down it's compressed-it could be softer uncompressed and stiffer fully compressed.

The A-Spec is a linear spring; I'm guessing at the rates based upon their claim that it's 10% stiffer than stock.

Just for comparison, the spring rates for Tein coilovers are now listed as 780 F 450 R.......(their site said 560 F 340 R in the not too distant past.

So, why upgrade? Well, 10% DOES make a difference. And as far as why the Mugen costs more, well, I believe you're getting a better a strut, but also, the A-Spec, for $575, is quite a bargain.

[LannyMCS]

ill compare the two shortly when my mugen adjustables arrive. i currently have the aspec, so i can do a direct comparison. =D

Do we know what the rates are for the adjustable setup?

[tuan209]

mugen adjustable is 319F/202R

[formerRSX-S]

bump....I am having the same dilema right now. Have begun researching the topic of suspension, and I think I have it narrowed between the Mugen SS and A-spec. One questions that has not been addressed yet: If I have either of the set-ups installed at the stealership, would there be any difference in the warranty coverage b/c one is made by Acura?

[xjessejun]

no one likes eibach springs? i thought that was the way to go...

[xjessejun]

like the prokit or something

[LannyMCS]

no one likes eibach springs? i thought that was the way to go...

I'm sure there are some people who are satisfied with Eibachs. The main problem is that Eibach has not yet released their struts, or the complete ProSystem, for the TSX. Both the A-spec and the Mugen are complete systems with new struts designed to work with lowering springs.

[LannyMCS]

bump....I am having the same dilema right now. Have begun researching the topic of suspension, and I think I have it narrowed between the Mugen SS and A-spec. One questions that has not been addressed yet: If I have either of the set-ups installed at the stealership, would there be any difference in the warranty coverage b/c one is made by Acura?

Even with A-Spec, warranty coverage is limited.

If you buy and and have the dealership install an A-Spec setup when the vehicle is purchased, then it is covered for the full new car warranty. The price for this coverage is very steep though; most dealers want $1000 + for the A-Spec setup; you could be $600 installed yourself; and there's not much to wrong with suspension.

Adding a A-Spec package through the dealer after the initial purchase results in a 12 month, 12k mile warranty.

Doing the install yourself means warranty on the parts only, just like the Mugen SS.

Regardless of which route you go, the rest of your warranty is not affected, unless the dealership can prove that a faulty install caused the problem.

[HondaMan]

ill compare the two shortly when my mugen adjustables arrive. i currently have the aspec, so i can do a direct comparison. =D

I hope you are still lurking here. So, what did you find after switching to the Mugen setup i.e. Mugen vs. A-Spec?

I'm leaning toward Mugen myself. BTW, I think this is stupid question but can we get Mugen stuff from anybody besides King Motorsports? I hate paying such high prices, but I guess that's what happens when you have no competition in pricing...etc. :( I wonder if I can get them cheaper in Japan. hmmm I need to go on another business trip over there and see! :)

[LannyMCS]

I hope you are still lurking here. So, what did you find after switching to the Mugen setup i.e. Mugen vs. A-Spec?

I'm leaning toward Mugen myself. BTW, I think this is stupid question but can we get Mugen stuff from anybody besides King Motorsports? I hate paying such high prices, but I guess that's what happens when you have no competition in pricing...etc. :( I wonder if I can get them cheaper in Japan. hmmm I need to go on another business trip over there and see! :)

Boomplustoys.net has availability of Mugen stuff; their shipped price quote was better than King's for the grill......

[typer_801]

Question, I've heard there are difference in the A-Spec kits for the Auto & Manual cars. Does anyone know what they are. Shock valving, spring rates ???? btw-the above spring rates are a great FAQ.

-Jeff

[Zoopa16]

Does anyone know who makes the A-spec system for Acura? Hard to believe, but the one for my Impala is made by Koni for Chevrolet.

[Zoopa16]

Question, I've heard there are difference in the A-Spec kits for the Auto & Manual cars. Does anyone know what they are. Shock valving, spring rates ???? btw-the above spring rates are a great FAQ.

-Jeff

The Automatic is heavier than the Manual version, so Acura may make the spring rate stiffer on the Auto to compensate for the weight.

[kyotousa]

want it stiffer, but not lowered.

don't want sway bars tho. that's diff stiffening.

why don't u just get coilover so you can stay the same height and adjust dampen?
or just get Aspec....

[stukibuilt]

Does anyone know who makes the A-spec system for Acura? Hard to believe, but the one for my Impala is made by Koni for Chevrolet.


My guess would be Showa Japan.