04 STI to RB320 suspensions switch POSSIBLE??? IF yes HOW???

onlywiseman1 · 03-12-2008, 08:29 PM

anybody can tell me if is possible to put rb320 suspension on 04 STI??

if is possible what do i have to do???
and HOW MUCH WILL IT COST???

if NOT can you recomend struts for 04 STI (not fan of coilovers)
OHLIN struts is my choice but which one to get for street drive?? and where do i get it???

THANKS!!!

nhat · 03-13-2008, 06:16 AM

you would need the 6gun 5x100 to 5x114.3 swap kit. the kit is around $1000, and good luck finding a rb320 kit.

you could try tokico d-specs, koni inserts, or ohlins fps. pm racecomp engineering for info.

05_GD7 · 03-13-2008, 07:46 AM

You can probably get RB320 thru Cosworth, as they have recently announced themselves as the new Prodrive North American distributor.

You can get the kit for a measly 2700 bucks.

**Turninconcepts.com** · 03-13-2008, 09:54 AM

Why do you want the RB320 kit so badly? I wonder if the guts from the RB320 struts would swap over to the 04 sti strut housings?

tony

onlywiseman1 · 03-13-2008, 07:59 PM

well!! i just like PRODRIVE!!! i have their intake and exhaust and it's perfect for my taste!!!! and i've got to have rb320!!

by the way thank you for the recomendation for struts!!! REALLY bottom of my heart!!!

Saabaru STI · 03-13-2008, 08:01 PM

I like Prodrive too, but we're talking major dough. Do the 5 x114 for more than just that suspension. You know you need new wheels with that, right?

onlywiseman1 · 03-15-2008, 10:56 AM

HU??? so for both front and rear wheels???

nhat · 03-16-2008, 11:18 AM

yes, to make the rb320 a direct swap, you need to swap both the front and rear. while you're at it, you should buy a set of prodrive wheels.

AP1toGDRev.G · 03-16-2008, 11:29 AM

^^ Like this...

LOL Sorry for being a whore

***steelgraySTi06*** · 03-16-2008, 11:32 AM

you'll need new brake rotors too.

Jethro · 03-17-2008, 12:19 PM

Why not just get Ohlins fixed perch with RCE blacks? That is just what I put on my 04 and it is a really amazing setup.

AP1toGDRev.G · 03-17-2008, 03:35 PM

I <3 ohlins...

javid · 03-26-2008, 08:33 AM

The rears will bolt up just fine.

The fronts will need a thicker 05+ STi style upright on the knuckle. The only reasonable way to achieve this is using the OEM 05 STi knuckle, which will require you to use 05 hubs , which we machine with a 5x100 pattern. You will also need an ABS adapter which comes in our kit.

Our typical kit machines both the hub for 5x100 and the knuckle for 04STi style struts. You would only need the hub machined so your total hub kit would be less than the typical kit.

The un-reasonable way to convert would be to plug and redrill the top hole on your existing knuckles. Then have some spacers fabricated (with the 05 upright hole spacing) that would mount on both sides of the 04 style uprights and have the same thickness as the 05 style uprights. This custom machining would likely be very close to the cost of our kit (which would also give you far better bearings) and would likely be functional but of less strength / rigidity vs starting with the 05 style knuckles.

Hope this helps.

**RaceComp Engineering** · 04-02-2008, 12:49 PM

Quote:

Originally Posted by Turninconcepts.com

Why do you want the RB320 kit so badly? I wonder if the guts from the RB320 struts would swap over to the 04 sti strut housings?

tony

Tony its a close swap actually. Maybe a hair more work than a koni in a sti housing.............but you and I are thinking the same way......

mw

03-12-2008, 08:29 PM	#1
onlywiseman1 Lurker Posts: 4 Join Date: Mar 2007 Trader Rating: (0)	04 STI to RB320 suspensions switch POSSIBLE??? IF yes HOW??? anybody can tell me if is possible to put rb320 suspension on 04 STI?? if is possible what do i have to do??? and HOW MUCH WILL IT COST??? if NOT can you recomend struts for 04 STI (not fan of coilovers) OHLIN struts is my choice but which one to get for street drive?? and where do i get it??? THANKS!!! This ad is not endorsed by this member. Please register or login to hide this ad.

03-13-2008, 06:16 AM	#2
nhat Professional STI Driver Car: 04 sti Fav Mod: enginuity tuned Location: NoVA Posts: 407 Join Date: Aug 2007 Trader Rating: (0)	Re: 04 STI to RB320 suspensions switch POSSIBLE??? IF yes HOW??? you would need the 6gun 5x100 to 5x114.3 swap kit. the kit is around $1000, and good luck finding a rb320 kit. you could try tokico d-specs, koni inserts, or ohlins fps. pm racecomp engineering for info.

03-13-2008, 07:46 AM	#3
05_GD7 Spec C Club Car: 05 STi - Black Fav Mod: No Lien Location: Ontario, Canada Posts: 1,801 Join Date: Mar 2006 Trader Rating: (2)	Re: 04 STI to RB320 suspensions switch POSSIBLE??? IF yes HOW??? You can probably get RB320 thru Cosworth, as they have recently announced themselves as the new Prodrive North American distributor. You can get the kit for a measly 2700 bucks.

03-13-2008, 09:54 AM	#4
Turninconcepts.com Authorized Vendor Posts: 4,810 Join Date: Jul 2003 Trader Rating: (50)	Re: 04 STI to RB320 suspensions switch POSSIBLE??? IF yes HOW??? Why do you want the RB320 kit so badly? I wonder if the guts from the RB320 struts would swap over to the 04 sti strut housings? tony

03-13-2008, 07:59 PM	#5
onlywiseman1 Lurker Posts: 4 Join Date: Mar 2007 Trader Rating: (0)	Re: 04 STI to RB320 suspensions switch POSSIBLE??? IF yes HOW??? well!! i just like PRODRIVE!!! i have their intake and exhaust and it's perfect for my taste!!!! and i've got to have rb320!! by the way thank you for the recomendation for struts!!! REALLY bottom of my heart!!!

03-13-2008, 08:01 PM	#6
Saabaru STI Grassroots STI Racer Posts: 503 Join Date: Mar 2006 Trader Rating: (1)	Re: 04 STI to RB320 suspensions switch POSSIBLE??? IF yes HOW??? I like Prodrive too, but we're talking major dough. Do the 5 x114 for more than just that suspension. You know you need new wheels with that, right?

03-15-2008, 10:56 AM	#7
onlywiseman1 Lurker Posts: 4 Join Date: Mar 2007 Trader Rating: (0)	Re: 04 STI to RB320 suspensions switch POSSIBLE??? IF yes HOW??? HU??? so for both front and rear wheels???

03-16-2008, 11:18 AM	#8
nhat Professional STI Driver Car: 04 sti Fav Mod: enginuity tuned Location: NoVA Posts: 407 Join Date: Aug 2007 Trader Rating: (0)	Re: 04 STI to RB320 suspensions switch POSSIBLE??? IF yes HOW??? yes, to make the rb320 a direct swap, you need to swap both the front and rear. while you're at it, you should buy a set of prodrive wheels.

03-16-2008, 11:29 AM	#9
AP1toGDRev.G Professional STI Racer Car: 07 UGM STi Fav Mod: Aux cord & Nitrogen in tires Location: San Diego & Temecula Posts: 628 Join Date: Apr 2007 Trader Rating: (0)	Re: 04 STI to RB320 suspensions switch POSSIBLE??? IF yes HOW??? ^^ Like this... LOL Sorry for being a whore

03-16-2008, 11:32 AM	#10
*steelgraySTi06* Platinum Member Car: 06 Subaru imprezaSTi Fav Mod: Prodrive Location: Southern California Posts: 524 Join Date: Nov 2007 Trader Rating: (1)	Re: 04 STI to RB320 suspensions switch POSSIBLE??? IF yes HOW??? you'll need new brake rotors too.

03-17-2008, 12:19 PM	#11
Jethro Amateur STI Driver Car: 2004 STi Fav Mod: STi Recaro Seats Location: Bloomingdale, IL Posts: 28 Join Date: May 2005 Trader Rating: (0)	Re: 04 STI to RB320 suspensions switch POSSIBLE??? IF yes HOW??? Why not just get Ohlins fixed perch with RCE blacks? That is just what I put on my 04 and it is a really amazing setup.

03-17-2008, 03:35 PM	#12
AP1toGDRev.G Professional STI Racer Car: 07 UGM STi Fav Mod: Aux cord & Nitrogen in tires Location: San Diego & Temecula Posts: 628 Join Date: Apr 2007 Trader Rating: (0)	Re: 04 STI to RB320 suspensions switch POSSIBLE??? IF yes HOW??? I <3 ohlins...

03-26-2008, 08:33 AM	#13
javid Junior STI Driver Car: 6-gun STi Fav Mod: CNC ! Location: Atlanta, GA Posts: 195 Join Date: Jun 2005 Trader Rating: (0)	Re: 04 STI to RB320 suspensions switch POSSIBLE??? IF yes HOW??? The rears will bolt up just fine. The fronts will need a thicker 05+ STi style upright on the knuckle. The only reasonable way to achieve this is using the OEM 05 STi knuckle, which will require you to use 05 hubs , which we machine with a 5x100 pattern. You will also need an ABS adapter which comes in our kit. Our typical kit machines both the hub for 5x100 and the knuckle for 04STi style struts. You would only need the hub machined so your total hub kit would be less than the typical kit. The un-reasonable way to convert would be to plug and redrill the top hole on your existing knuckles. Then have some spacers fabricated (with the 05 upright hole spacing) that would mount on both sides of the 04 style uprights and have the same thickness as the 05 style uprights. This custom machining would likely be very close to the cost of our kit (which would also give you far better bearings) and would likely be functional but of less strength / rigidity vs starting with the 05 style knuckles. Hope this helps.