I'm personally a big fan of Agency Power products, because of their quality and price. I prefer stock exhausts personally, but I'll leave my opinion on that out of this thread
They're both great exhausts, and I'd say go with Agency Power 100%, but you mentioned that you're getting ready to buy a house so I did want to point out that we've currently got Invidia exhausts on sale. We have all 3 styles of the Invidia for $874.99. The Agency Power is $1000
Catback Exhausts | Performance Catbacks | VividRacing.com
Catback Exhausts | Performance Catbacks | VividRacing.com
PM me if you need a shipping quote.