Koni STRT and FRPP P Spring Install Questions
Thread Starter
GT Member
Joined: December 27, 2011
Posts: 105
Likes: 0
From: Owings Mills, Maryland
Koni STRT and FRPP P Spring Install Questions
Hi I have the following items for my 2011 GT
1. FRPP P Springs
2. GT 500 Strut Mounts
3. Koni STRT struts and shocks
4. FRPP Bump Stops
5. Strut Dust Boot, by Gabriel
I plan to do the install his weekend, but wanted to assemble the front struts prior to installation. I have a spring compressor on hand. My questions are as follows:
1. Do I need the dust boot? Probably not a bad idea since we get roads salted during winter months, but this should be given by Koni I think all other manufacturers provide it.
2. Do I need the bump stops? Wouldn't these made the ride harsher if it bottoms out, but if is bottoming out then there maybe another problem.
3. Can I reuse rear bushings to install the rear shocks?
Also I want to install polyurethane sway bar bushings the front is 35 mm and rear 24 mm and the rear sway bar dog bones. I was also thinking of getting front end links but that's a maybe. Energy suspension makes the bushings, are there any others? FYI the front sway bar is hollow and rear is solid.
1. FRPP P Springs
2. GT 500 Strut Mounts
3. Koni STRT struts and shocks
4. FRPP Bump Stops
5. Strut Dust Boot, by Gabriel
I plan to do the install his weekend, but wanted to assemble the front struts prior to installation. I have a spring compressor on hand. My questions are as follows:
1. Do I need the dust boot? Probably not a bad idea since we get roads salted during winter months, but this should be given by Koni I think all other manufacturers provide it.
2. Do I need the bump stops? Wouldn't these made the ride harsher if it bottoms out, but if is bottoming out then there maybe another problem.
3. Can I reuse rear bushings to install the rear shocks?
Also I want to install polyurethane sway bar bushings the front is 35 mm and rear 24 mm and the rear sway bar dog bones. I was also thinking of getting front end links but that's a maybe. Energy suspension makes the bushings, are there any others? FYI the front sway bar is hollow and rear is solid.
Last edited by 2011BlackStang5.0; Mar 7, 2013 at 08:06 PM. Reason: Spelling
Shelby GT350 Member
Joined: May 6, 2012
Posts: 2,060
Likes: 0
From: Crofton MD
I think Whiteline may also make bushings, and I think you want to put the jounce bumpers on because they will stop them from bottoming out. It isn't good to be hitting the bump stops hard but they are there to stop metal from hitting metal from the looks of it. The front does take a while with compressing both sets of springs but you want to do it right. Also make sure not to use an impact unless told otherwise from the manufacturer. I found using a 13/16's spark plug socket that was ground out to fit a 10mm socket worked to let me tighten the strut rod nut down.
GT Member
Joined: July 29, 2012
Posts: 162
Likes: 0
Hi I have the following items for my 2011 GT
1. FRPP P Springs
2. GT 500 Strut Mounts
3. Koni STRT struts and shocks
4. FRPP Bump Stops
5. Strut Dust Boot, by Gabriel
I plan to do the install his weekend, but wanted to assemble the front struts prior to installation. I have a spring compressor on hand. My questions are as follows:
1. Do I need the dust boot? Probably not a bad idea since we get roads salted during winter months, but this should be given by Koni I think all other manufacturers provide it.
2. Do I need the bump stops? Wouldn't these made the ride harsher if it bottoms out, but if is bottoming out then there maybe another problem.
3. Can I reuse rear bushings to install the rear shocks?
Also I want to install polyurethane sway bar bushings the front is 35 mm and rear 24 mm and the rear sway bar dog bones. I was also thinking of getting front end links but that's a maybe. Energy suspension makes the bushings, are there any others? FYI the front sway bar is hollow and rear is solid.
1. FRPP P Springs
2. GT 500 Strut Mounts
3. Koni STRT struts and shocks
4. FRPP Bump Stops
5. Strut Dust Boot, by Gabriel
I plan to do the install his weekend, but wanted to assemble the front struts prior to installation. I have a spring compressor on hand. My questions are as follows:
1. Do I need the dust boot? Probably not a bad idea since we get roads salted during winter months, but this should be given by Koni I think all other manufacturers provide it.
2. Do I need the bump stops? Wouldn't these made the ride harsher if it bottoms out, but if is bottoming out then there maybe another problem.
3. Can I reuse rear bushings to install the rear shocks?
Also I want to install polyurethane sway bar bushings the front is 35 mm and rear 24 mm and the rear sway bar dog bones. I was also thinking of getting front end links but that's a maybe. Energy suspension makes the bushings, are there any others? FYI the front sway bar is hollow and rear is solid.
V6 Member
Joined: January 2, 2013
Posts: 93
Likes: 0
From: Raleigh NC
Hi I have the following items for my 2011 GT
1. FRPP P Springs
2. GT 500 Strut Mounts
3. Koni STRT struts and shocks
4. FRPP Bump Stops
5. Strut Dust Boot, by Gabriel
I plan to do the install his weekend, but wanted to assemble the front struts prior to installation. I have a spring compressor on hand. My questions are as follows:
1. Do I need the dust boot? Probably not a bad idea since we get roads salted during winter months, but this should be given by Koni I think all other manufacturers provide it. YES
2. Do I need the bump stops? Wouldn't these made the ride harsher if it bottoms out, but if is bottoming out then there maybe another problem. Cut 1/4" off the bump stop on the front. The rear shouldn't really need it if they do cut 1 section off.
3. Can I reuse rear bushings to install the rear shocks?
You could but they should come with new hardware no?
Also I want to install polyurethane sway bar bushings the front is 35 mm and rear 24 mm and the rear sway bar dog bones. I was also thinking of getting front end links but that's a maybe. Energy suspension makes the bushings, are there any others? FYI the front sway bar is hollow and rear is solid.
1. FRPP P Springs
2. GT 500 Strut Mounts
3. Koni STRT struts and shocks
4. FRPP Bump Stops
5. Strut Dust Boot, by Gabriel
I plan to do the install his weekend, but wanted to assemble the front struts prior to installation. I have a spring compressor on hand. My questions are as follows:
1. Do I need the dust boot? Probably not a bad idea since we get roads salted during winter months, but this should be given by Koni I think all other manufacturers provide it. YES
2. Do I need the bump stops? Wouldn't these made the ride harsher if it bottoms out, but if is bottoming out then there maybe another problem. Cut 1/4" off the bump stop on the front. The rear shouldn't really need it if they do cut 1 section off.
3. Can I reuse rear bushings to install the rear shocks?
You could but they should come with new hardware no?
Also I want to install polyurethane sway bar bushings the front is 35 mm and rear 24 mm and the rear sway bar dog bones. I was also thinking of getting front end links but that's a maybe. Energy suspension makes the bushings, are there any others? FYI the front sway bar is hollow and rear is solid.
See bolt remarks.
Thread Starter
GT Member
Joined: December 27, 2011
Posts: 105
Likes: 0
From: Owings Mills, Maryland
OK I got a message back from KONI directly, even though they don't provide the dust boots they recommend them. And they also recommend the bump stops.
My suggestion to KONI is that if you recommend somethign please provide it with your product, just as a customer I feel that it is not properly disclosed what the manufacturers intentions are in the use of their product. I am disappointed in this aspect hopefully the after installation results are redeeming, my two cents of opinion is that its not worth the expense to part this upgrade. Buy a set and it will be cheaper, till now I have spent over $750 on all the parts on sale while I can by an Eibach Kit from AM for $875 inlcuding new sway bars..............shoulda woulda coulda.............haha
My suggestion to KONI is that if you recommend somethign please provide it with your product, just as a customer I feel that it is not properly disclosed what the manufacturers intentions are in the use of their product. I am disappointed in this aspect hopefully the after installation results are redeeming, my two cents of opinion is that its not worth the expense to part this upgrade. Buy a set and it will be cheaper, till now I have spent over $750 on all the parts on sale while I can by an Eibach Kit from AM for $875 inlcuding new sway bars..............shoulda woulda coulda.............haha
Shelby GT500 Member
Joined: January 9, 2012
Posts: 2,687
Likes: 0
From: Oklahoma
OK I got a message back from KONI directly, even though they don't provide the dust boots they recommend them. And they also recommend the bump stops.
My suggestion to KONI is that if you recommend somethign please provide it with your product, just as a customer I feel that it is not properly disclosed what the manufacturers intentions are in the use of their product. I am disappointed in this aspect hopefully the after installation results are redeeming, my two cents of opinion is that its not worth the expense to part this upgrade. Buy a set and it will be cheaper, till now I have spent over $750 on all the parts on sale while I can by an Eibach Kit from AM for $875 inlcuding new sway bars..............shoulda woulda coulda.............haha
My suggestion to KONI is that if you recommend somethign please provide it with your product, just as a customer I feel that it is not properly disclosed what the manufacturers intentions are in the use of their product. I am disappointed in this aspect hopefully the after installation results are redeeming, my two cents of opinion is that its not worth the expense to part this upgrade. Buy a set and it will be cheaper, till now I have spent over $750 on all the parts on sale while I can by an Eibach Kit from AM for $875 inlcuding new sway bars..............shoulda woulda coulda.............haha
I'll definitely go with the sport plus package right off the bat next time
Shelby GT500 Member
Joined: January 9, 2012
Posts: 2,687
Likes: 0
From: Oklahoma
Thread Starter
GT Member
Joined: December 27, 2011
Posts: 105
Likes: 0
From: Owings Mills, Maryland
Well got my GT 500 mounts today, was surprised with the use of plastic. And with my luck one of them showed up broken 
bummed cuz I could have dry fit everything. I bought strut bellows from Autozone and they fit perfectly. I will post the part number tomorrow with some photos, but $34 to save me labor and time is well worth it since I had already $30 on the Ford Racing Bump Stops.
bummed cuz I could have dry fit everything. I bought strut bellows from Autozone and they fit perfectly. I will post the part number tomorrow with some photos, but $34 to save me labor and time is well worth it since I had already $30 on the Ford Racing Bump Stops.
Bullitt Member
Joined: June 9, 2011
Posts: 222
Likes: 0
Yeah I realized the same thing after I bought konis, gt500 strut mounts, steeda ultralites (which I'm trading for eibachs anyways) all for about the same price. And even more salt in the wound is that konis are on sale now haha
I'll definitely go with the sport plus package right off the bat next time
I'll definitely go with the sport plus package right off the bat next time
Shelby GT500 Member
Joined: January 9, 2012
Posts: 2,687
Likes: 0
From: Oklahoma
Wasn't going to be a low enough drop. Every picture I've seen of one looks like nothing has happened to the car, or it's just a slight drop. I'm sure they perform great, and steeda makes a great product.
Bullitt Member
Joined: April 2, 2012
Posts: 286
Likes: 0
From: Texas
Hi I have the following items for my 2011 GT
1. FRPP P Springs
2. GT 500 Strut Mounts
3. Koni STRT struts and shocks
4. FRPP Bump Stops
5. Strut Dust Boot, by Gabriel
I plan to do the install his weekend, but wanted to assemble the front struts prior to installation. I have a spring compressor on hand. My questions are as follows:
1. Do I need the dust boot? Probably not a bad idea since we get roads salted during winter months, but this should be given by Koni I think all other manufacturers provide it.
2. Do I need the bump stops? Wouldn't these made the ride harsher if it bottoms out, but if is bottoming out then there maybe another problem.
3. Can I reuse rear bushings to install the rear shocks?
Also I want to install polyurethane sway bar bushings the front is 35 mm and rear 24 mm and the rear sway bar dog bones. I was also thinking of getting front end links but that's a maybe. Energy suspension makes the bushings, are there any others? FYI the front sway bar is hollow and rear is solid.
1. FRPP P Springs
2. GT 500 Strut Mounts
3. Koni STRT struts and shocks
4. FRPP Bump Stops
5. Strut Dust Boot, by Gabriel
I plan to do the install his weekend, but wanted to assemble the front struts prior to installation. I have a spring compressor on hand. My questions are as follows:
1. Do I need the dust boot? Probably not a bad idea since we get roads salted during winter months, but this should be given by Koni I think all other manufacturers provide it.
2. Do I need the bump stops? Wouldn't these made the ride harsher if it bottoms out, but if is bottoming out then there maybe another problem.
3. Can I reuse rear bushings to install the rear shocks?
Also I want to install polyurethane sway bar bushings the front is 35 mm and rear 24 mm and the rear sway bar dog bones. I was also thinking of getting front end links but that's a maybe. Energy suspension makes the bushings, are there any others? FYI the front sway bar is hollow and rear is solid.
Legacy TMS Member
Joined: August 7, 2011
Posts: 5,246
Likes: 567
From: NC
Do you guys have a part number for these dust boots you're buying at Autozone?
I walked in there and they looked at me like I had 3 heads when I asked them for strut dust boots.
Same response at VIP Auto Parts and the local NAPA
No real luck on Google either ...
I walked in there and they looked at me like I had 3 heads when I asked them for strut dust boots.
Same response at VIP Auto Parts and the local NAPA
No real luck on Google either ...