I'm running gutted cats and OFT stage 2. It was a big difference from Stage 1 with the cats. It sounds great too with a cherry bomb and Berk dual exit. [ame="https://www.youtube.com/watch?v=7n3pgL9czCc"]myexhaust86 - YouTube[/ame] I get a lot of compliments on it.
A lot of times when you hear bad things about gutting it's from people who have no experience with it. But it works and it made my car like it has a new engine- huge difference in power but I have yet to dyno it. But My 80-100 MPH time went down by about 1.5 secs and my 0-60 MPH time has lost close to a second too (still on stock tires).
I know the gains aren't the same as the high end headers, but you have the advantage of the stock heat shielding- there is no risk of cooking coils or anything else if you keep the stock heat shields. Also, OEM quality is top notch. No chance of cracked welds.
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