Try lucifier on here for exhausts as they are made to the same specs as miltek but cheaper
Or scorpion and I went for the res cat back on mine. Also fit the oem one and change the tips to 4".
Suspension wise I Lowered mine with H&r springs and makes it drive and handle a lot better. Look through my build thread for sound clips and pictures
The extension paddle shift had the tape on but kept falling of so I glued mine on with super glue from work as its very strong stuff and bonds in seconds..if you go down this route I will send you some