Just installed the Ultimate Steering Response System (USRS) from RR-Racing.
12-09-15, 08:43 PM
#181
Lexus Champion
iTrader: (20)
I definitely wouldn't recommend a GTR. Too big/wide of a car and much harsher than the F. Good luck parallel parking a GTR 
I like the m4. My only gripes are longevity and the engine/exhaust note.
Can't lie that the 08 Fs drive harshly. But the exhaust note is enough for me to love this car even if I replace the coilovers with lead blocks.
I'd stick around with the F for a little while longer just to see if the aftermarket brings anhthing new
I like the m4. My only gripes are longevity and the engine/exhaust note.
Can't lie that the 08 Fs drive harshly. But the exhaust note is enough for me to love this car even if I replace the coilovers with lead blocks.
I'd stick around with the F for a little while longer just to see if the aftermarket brings anhthing new
. i literally feel every crack and bump in the road. It wasn't like this with the smooth perfect roads we had in NC.
12-10-15, 04:48 AM
#183
Hi Rafi, woild it be possible for those of us who drive in more of urban environment aka concrete jungle lol to create perhaps three levels a street 90duro, a street&track 95duro, and a full on race at whatever level you set.
It seems like large percentage of ISF drivers use them as DD like me. I commute from a suburb of New York City and drive 5 days week down to 34th street in midtown Manhattan using some pretty rough roads, expansion joints on highways and bridges raise plows, potholes, uneven road surfaces you name it.
For those of us who drive in more of urban environment and use our car's as a daily driver a less aggressive 90 duro would work well I think it would be a great compromise between performance and comfort it would still be a vast improvement over OEM set up.
Thanks again for all your great work
I'd be willing to trade mine for the USRS!
Go ahead & buy them & we can swap 
-Mike
12-10-15, 08:25 AM
#184
Pole Position
But as far as NVH I really didn't notice too much more over stock to tell you the truth. Now that I just installed Swift Springs in combination with the USRS bushings I can feel more of the road for sure, but it feels more connected now with the springs and seems to handle better
12-10-15, 11:49 AM
#187
Lexus Fanatic
The difference I ntoiced in NVH would be equal to adding 3-4 lbs of pressure to your tires. No biggie.
The Joe Z exhaust, on the other hand, has absolutely created some buzzing when I start up the car cold . But it is what it is
The Joe Z exhaust, on the other hand, has absolutely created some buzzing when I start up the car cold . But it is what it is
12-10-15, 06:16 PM
#188
Driver School Candidate
I noticed that buzzing after gutting my cats. It only happens in cold start above 1500rpm. Strange noise that I initially thought was an exhaust leak. But it must be the exhaust pinging off the headers or something.
12-12-15, 02:40 PM
#189
Racer
No buzzing from my PPE Headers & Joe-Z just an amazing sound...as for the USRS haven't really noticed anything when I had it installed. Several months down the line I feel a bit of NVH but I can't put that down to the bushes, unless with time they get even stiffer, which could be possible.
12-13-15, 02:14 PM
#190
Sponsor
iTrader: (1)
No buzzing from my PPE Headers & Joe-Z just an amazing sound...as for the USRS haven't really noticed anything when I had it installed. Several months down the line I feel a bit of NVH but I can't put that down to the bushes, unless with time they get even stiffer, which could be possible.
Rafi
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12-13-15, 05:01 PM
#194
I agree about the USRS bushings. I noticed first and foremost the better braking feel over the steering response, but steering does feel better compared to stock bushings for sure
But as far as NVH I really didn't notice too much more over stock to tell you the truth. Now that I just installed Swift Springs in combination with the USRS bushings I can feel more of the road for sure, but it feels more connected now with the springs and seems to handle better
But as far as NVH I really didn't notice too much more over stock to tell you the truth. Now that I just installed Swift Springs in combination with the USRS bushings I can feel more of the road for sure, but it feels more connected now with the springs and seems to handle better
