And the answer is NO. If you want stiffer suspension change your springs and shocks!
Pete
I have to agree. I don;t want to get into this argument again but I went from stock to poly back to stock, the only difference I have seen is that my teeth are still in tact with the rubber. I have to say that I also tried 2 different types of poly, powerflex and superpro. I did not like either. The other problem is they are high maintenance! I have eaten up more poly bushings than rubber due to wear. Yeah I know your saying BS. Well it is 100% true. I think it is more of a hassle to grease them up all the time than replace them every 5-10 years. I have gone 10 years or more on stock bushings and still retained good handling, actually only oil leaks caused my failures.
Although poly is different today than the past, it is very similar to a spring. Rubber is like a progressive rate spring, soft and when compressed it starts working and gets tighter, poly is like a linear spring, kind of always hard and gets even hard when compressed.
This last summer I pulled all my poly off the car and replaced with new OE rubber, I noticed no difference in performance as I do have sway bars, springs, larger wheel/tire combo and koni's. The handling is just as good but it is 10 times more comfortable. I also believe that there needs to be some flex in the suspension, hence the name.
I will not go further with this as it is a touchy subject. You can never convince a person with poly that they are not great or uncomfortable or whatever. Thats like telling them alfa's are not the greatest cars.
Some people like them and believe they are the best and save money, some people are on the other side of the fence. I happen to be on that side.
Just my opinion and experience with them. I found no real gain with them and specifically on the spider, it just made things even worse. Stock is hard enough for me.
just my 2 cents! Flame suit on.
