Based on the information above, I would go with the 2011. This is all assuming, of course, that the chain tensioner has been replaced with the most recent version. Otherwise, it could be a deal-breaker for me. The other thing to consider is, that there is a $3,000 difference between the two. You could theoretically buy the APR setup and new coil overs for that and then some. However, at 115k miles, other suspension bits like bushings will need replacement versus the 2013 model. But that still doesn't equate to the $3,000 difference. Lastly, the 2013 exhaust setup seems bastardized (removed cat, replaced cat, replaced exhaust, etc.). Were they welded or reput together correctly? Leaks?... too many unknowns. Lastly, you need to check for exhaust manifold studs breaking (if broken, you will see exhaust leakage from cylinder closest to driver side in a US car) and also need to perform an engine leak down test for both cars. As a data point I've had an APR with an Audi 4 cylinder 296k miles! Half of that was on the track... okay maybe not half but a lot!