When is a tune absolutely needed?

SS_Firehawk

I had a 3 month fist fight with my manifold before I came to my conclusion. Sum it up, something else was wrong with my car that was losing power, not the manifold. I say put it on, it should run safely without tuning, but I gained 99% of the top end power back and much more mid range post tuning. It's on the first page of my build thread. I'm about to go back and bold/increase font size of my review topics. I'm interested to see if it helps with your rasp too. Not that your car sounds bad, I had 3 eargasms in 30 seconds. It's a 60 min job, just need some deep sockets and hex's.

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