'95 Integra LS sedan.

I have a couple things with my car that I would like to know what is happening. First, whenever I arrive at my destination, within a minute after turning my car off, I will get a single loud pop, or creak, from the front of my car. The engine is off; it sort of sounds similar to the creaking of a car that is cooling down, but this is much louder and only once. It did not happen when everything I had was stock. Right now the mods I have in the front half are Comptech headers, Koni Yellows, and Eibach Pro-Kit.

The second question I have is a braking problem. Last night it was wet outside. I had to drive around. When I would brake quickly, my car "thudded" repeatedly. I would almost describe it as how I think it would feel and sound if the tires locked up and then bounced across the pavement. I have ABS, so was this just the first time I've experienced the ABS system on my car? I would've expected it to be much less violently thuddy.

Ben