So I intalled a Greddy Evo2 catback on my 07 civic Si tonight. But when I was removing the stock exhaust, a bolt coming from the cat was VERY VERY tight and I ended up stripping it. When I tried to put the Greddy on, one of the bolts wouldnt tighten on. So what I'm wondering, is this bad that ONE of the bolts isn't tightened on? The other two are nice and snug, but will this cause a leak or any problems??