Home and Auto People who know about suspension on cars... I'd love some advice

Mephistopheles Janx · 07-04-2024, 04:25 PM

I own a neat car. It is a 2009 Pontiac Solstice GXP (tuned to 305HP). I love the car and other than the fact that the 15 year old suspension just gave up the ghost... the car is in great shape. The only problem with it is that original parts are hard to come by.

Bilstein originally made the coilover suspension for the GXP which are rated at F3. They no longer make them though. So I head over to Rock Auto and I see that AC Delco has taken the mantle but the issue I have here is that Rock Auto lists the same coilovers (AC Delco 503-706/7) for both the GXP and the Base model.

I head over to AC Delco's website and can't find a ****ing thing about them when I search the model number. After several hours of digging I came across an old post stating that the 503-706/7 shocks from AC Delco are F2 rated.

So... no one makes the stock suspension for this car anymore. ****ing yay.

My options are as follows:

Buy the AC Delco shocks that are f2 rated because those are still gonna provide a better ride than what I am getting now with my leaky f3 rated ones. - Cost $350 + install

OR

Go 3rd party with it and snag these Coilovers at $1235 plus install

CONVERSELY

If you are aware of another coilover manufacturer you are familiar with that makes quality products I'll gladly go check them out and see if they have anything available for me.

ALSO

Once the shocks are replaced I'm going to keep the old ones and send them to Biltein because though they don't make new ones... they will absolutely rebuild the old ones. I'll have a backup set for when the next set goes out.

---

The car is daily driven and will be doing autocross. I also, though, live on a dirt road so I don't care about lowering the car any more than it already is. I need them for go... not show.

TIA

07-04-2024, 04:25 PM	Topic Starter
Mephistopheles Janx The Guy With The Goats Join Date: Jan 2017 Casino cash: $1162400	People who know about suspension on cars... I'd love some advice I own a neat car. It is a 2009 Pontiac Solstice GXP (tuned to 305HP). I love the car and other than the fact that the 15 year old suspension just gave up the ghost... the car is in great shape. The only problem with it is that original parts are hard to come by. Bilstein originally made the coilover suspension for the GXP which are rated at F3. They no longer make them though. So I head over to Rock Auto and I see that AC Delco has taken the mantle but the issue I have here is that Rock Auto lists the same coilovers (AC Delco 503-706/7) for both the GXP and the Base model. I head over to AC Delco's website and can't find a **ing thing about them when I search the model number. After several hours of digging I came across an old post stating that the 503-706/7 shocks from AC Delco are F2 rated. So... no one makes the stock suspension for this car anymore. **ing yay. My options are as follows: Buy the AC Delco shocks that are f2 rated because those are still gonna provide a better ride than what I am getting now with my leaky f3 rated ones. - Cost $350 + install OR Go 3rd party with it and snag these Coilovers at $1235 plus install CONVERSELY If you are aware of another coilover manufacturer you are familiar with that makes quality products I'll gladly go check them out and see if they have anything available for me. ALSO Once the shocks are replaced I'm going to keep the old ones and send them to Biltein because though they don't make new ones... they will absolutely rebuild the old ones. I'll have a backup set for when the next set goes out. --- The car is daily driven and will be doing autocross. I also, though, live on a dirt road so I don't care about lowering the car any more than it already is. I need them for go... not show. TIA
Posts: 10,329