Don't mean to bump an old thread, but it's better than making another I guess ....So with your manifold, which o2 housing and downpipe are you using? I was thinking of going with greddy's o2 housing with a Megan downpipe with the flex pipe, but I'm not sure if I'll have clearance issues with that setup.float_6969 wrote:Generally referred to as an SSAC, or SS Auto Crap manifold. Some people have had fitment problems. Mine's been on my car for almost 2 years now w/o a problem.