FRPP parts feedback

[trinity_gt]

As winter is setting in and my 02 GT is headed for storage, I find myself flipping through the pages of my 2004 FRPP parts catalog once again, hoping to find some reasonable goodies I can amass for installation next spring:

Anyone actually used and have any feedback on the following bits:

M-5500-A UCA kit
- bushings are twice as stiff as production for better lateral axle location; adverse effects for street car?

M-5230-M52 cat back
- sound? comparison to other catbacks?

M-5300-F springs with 460/570 170/310 rates F/R
- advertised 1.2" drop front, 1.0" drop rear; too much drop? too stiff? car sits like an F-150 now so there's room for a drop...

Car is a daily driver, not a drag racer and rarely sees the track though it does see quite a bit of WOT and on- & off-ramp charging

 

[LI98GTStang]

Out of your choices, I can only personally speak for the catback. Quality was better than stock, mandrel bent, no drone and improve sound quality. I didn't feel any hp increase however in the SOTP meter however and on the dyno.
I don't see much people with the "F" springs, but the "C"s are very popular here. What are the specs there on the F springs - progressive rated or specific? Oh yeah, with a 1.5" drop, you will need caster/camber plates that will allow you to get back into alignment. Max you typically can go is a 1.25" drop in front.

 

[trinity_gt]

Out of your choices, I can only personally speak for the catback. Quality was better than stock, mandrel bent, no drone and improve sound quality. I didn't feel any hp increase however in the SOTP meter however and on the dyno.

That's to be expected I guess. I wouldn't have expected much in terms of HP from the cat back but I'm addicted to the sound improvement the MRT H gave and want a cat back - sans drone - to enhance that further.

I don't see much people with the "F" springs, but the "C"s are very popular here. What are the specs there on the F springs - progressive rated or specific? Oh yeah, with a 1.5" drop, you will need caster/camber plates that will allow you to get back into alignment. Max you typically can go is a 1.25" drop in front.

Looking at the FRPP cat page:

http://www.fordracingparts.com/parts/part_details.asp?PartKeyField=272

I see that the 'C' springs are probably more what I'm looking for in terms of drop. They spec a 1.125" drop for the front and 3/4" on the rear which seems pretty good. 650 lbs/in though?? Wow...that'd be a very stiff ride. Like...unbearably stiff on ice-heaved roads?

 

[LI98GTStang]

depends what you are going for. I didn't like the turn-in on the stock springs and wanted something stiffer, so I got the Bullitt spring kit. It has 650lbs in front, just like the Cs and I like the firmer ride, not too harsh IMO. At 460/570fr. and 170/310 rear, the Fs don't seem much firmer than stock, so if you like the stock ride, then it might be the way to go for you. FYI, stock specs. that I have are 400/500 fr. and 165/265 rear. Just don't forget about the c/c plates though.

 

[john_324]

Also consider the FRPP "B" springs...they lower the same as the Cs, but the ride is not as stiff (they're progressive not linear)...it's closer to stock from what I've heard (I have a set, but they're still waiting for installation).

 

[Darkhorse845]

FRPP UCA bushings are twice as stiff as stock! A nice American thunder
Flowmaster (40series)Catback would sound great! A nice set of FRPP "C"
springs to lower the 4X4 stance!