[Orange Crate]

X2 on the stock high perf 2 1/2 outlet manifolds. I had a pair above my garage for maybe 15 years, always thinking I would install them. So my 2" exhaust gave up the ghost from winter magnesium chloride and I dug them out and put 2 1/2" all the way back, WOW what a difference. The throttle response is really fun now on my 406. Peoples opinions of "high performance" can vary widely. I want to be able to pull a 10K lb trailer up a mountain pass and some others may want to go over that pass at 150mph. The manifolds I put on were from a Hi Perf 327 I think from the late 60s and it had the alternator mount cast into it, so I had to cut it off, but I put that manifold behind my alternator so you really can't even see it. I am not sure if there was a HiPerf 2 1/2 outlet that didn't have the alternator mount cast in. Maybe someone else can chime in on that issue.