About to get some H&R springs put on my 997, and I wanted to know if you folks have any suggestions as to anything else I might consider proactively knocking out at the same time. Assuming shocks shouldn't be considered yet... It's only got 28,500 miles on it, but it is 9 years old. Here's what's on the agenda for now:

- H&R springs
- NHP cat bypass pipes
- Function-First transmission mount
- Function-First engine mount
- Function-First shift ****
- StopTech rear brake pads (to address horrible squealing)

 

If you don't track the car then you should probably stick with OE brake pads. Otherwise, you're unbalancing the braking force between front and back.
What about sway Bars?
Since you're lowering, what about a skit plate to protect the engine?

 

Take care of the bearings and the rubber bump stops in the front shocks.
Parts are about $160 total and worth it since they will be off the damper when switching out springs anyway, are not serviceable and are cheap. Some also recommend changing the top mounts as those are only $50 a piece with a sealed un-serviceable bushing too.


Here are part numbers:
(2x) OEM Front Shock Support Rings 996 343 517 01 http://amzn.com/B00AH3C878
(2x) OEM Rubber Bump Stop Bushing 996 343 301 02 http://amzn.com/B00AL7Q3TE
(2x) OEM Shock Bearing Plate Mount 996 343 515 05

If you ever plan on changing out the sway bars do it now. The rear can be done without removing suspension parts but the front cross member needs to be removed in order to install the front sway and you'll have to remove most of the suspension to do that. The suspension will be removed when installing the front springs so it's a heck of a lot easier and saves a ton of time (and $$$) to do the front sway while also doing springs.

RE: Brake Pads
If you are changing brand and/or compound I recommend you change all four corners to maintain brake balance

 

I don't think I'll worry about sway bars since it's strictly street driven.

nwGTS, I'm curious on the links you provided through Amazon, though.

The bump stop bushings show to be for 997's with PASM. Will they still work for non-PASM cars?

What is the difference between the last two links? Appear to be the same items...

Thanks!

 

Yes, I fixed the links.. sorry about that. I didn't realize you did not have PASM and I do not know if these will fit a non-PASM car. These are the parts that were recommended to me by my dealer.

If you search for a thread by EMC2, his breakdown of part numbers shows similar parts being replaced when he lowered his car and he did not have PASM.

 

If you care about looks, consider spacers since the drop will tuck the wheels further into the well. For stock wheels, 7mm up front and 15mm back seems to be the formula. There's some aversion around here to wheel spacers. Why, I never understood since Porsche sells cars with spacers from the factory. Just make sure you get the longer bolts to go along with it.

 

^^^ This!!!

 

Ha! Already did spacers. I've done them on most vehicles I've owned. Went with 10mm up front and 12mm on the rears due to the 305's. Now just need the drop...