For you guys who are having exhaust hanging problems - there is a science to this. A couple things to keep in mind on when installing an aftermarket exhaust to prevent interference issues with your subframe/bracing/PPF, etc. This is assuming you are installing an aftermarket exuast that is a bolt up application (non weld install).
1) Make sure to install your exhaust initially in a loose format so that aadjustments can be made - especially at the cat and can. Keep all nuts loose and only hang with rubber hangers that need to be used. Do not hang with all rubber hangers initially.
2) It is better to have a helper hold the exhaust tip centered and at the location you desier as you tighten things down.
3) When tightening things up - always tighten the 2 nuts at the cat and at the can (in this case an NA version) and do it equally on each side - so that the distribution is equal. In this way, you keep things straight and and the exhaust will not 'torque' to one side if you tighten only the left bolt until tight - then the right.
4) If you need some adiditonal adjustments - you can use some small fuel tubing and small hose clamps (sccrew type) to force over one (or two) of the rubber hangers to get the exhaust to pull in the direction you need. This is a method that is a force method and not recommended as heat will usually soften things up and will go back to the original location.
A couple things to note. First, if you have a good exhaust system, it should hang correctly. It should not bump into your sub frame or burn your opening in your bumper because the tip is touching. This is an indication that your car is tweaked from an accident or the exhaust was not jigged correctly. Second, aftermarket bracing may not be compatible with an exhaiust that hangs perfectly straight. Like my Beatrush PPF brace is *extremely* close to my Zoom exhaust. At one point I put the large rubber block that Zoom provides to prevent the banging that this exhaust tends to do with aftermarketing bracing - but after 5,000 miles, the rubber block was chewed away and fell apart.
Anyway, this is a science and I can only tell you what I have been through with the exhausts that I installed over the past 5 or so years - including my Thermal exhaust and now my Zoom exhaust.
I love installing them - I just reallized that cheap exhausts tend to give you some headaches.