Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community - FT86CLUB - View Single Post

Amputechture · 09-06-2016, 05:08 PM

Hey guys,

I know this is a beaten subject but I haven't been able to find much in terms of hard data. Does anyone have any before and after dynos of just a catback on a turbo setup(butt dynos are welcomed too, fuck it)? I am running 10 PSI on a Precision 4854, 2.5 OP, 2.5 HFC with a stock catback on 93 octane. Long story short I am trying to squeeze a tad bit more out of my current setup without switching to flexfuel or methanol, and yes I am aware that the cost to gain ratio of flexfuel is much greater. I know CBEs do fuck-all in N/A fashion but in my case I stand to gain from one. Would it behoove me more to get the cat out of the front pipe or is there a noticeable gain to be made via a catback? Or at my power level would you just keep your cash and spend elsewhere?

09-06-2016, 05:08 PM	#1
Amputechture Senior Member Join Date: Aug 2015 Drives: 2014 BRZ Location: FL Posts: 424 Thanks: 49 Thanked 143 Times in 111 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	Gains from catback? Hey guys, I know this is a beaten subject but I haven't been able to find much in terms of hard data. Does anyone have any before and after dynos of just a catback on a turbo setup(butt dynos are welcomed too, fuck it)? I am running 10 PSI on a Precision 4854, 2.5 OP, 2.5 HFC with a stock catback on 93 octane. Long story short I am trying to squeeze a tad bit more out of my current setup without switching to flexfuel or methanol, and yes I am aware that the cost to gain ratio of flexfuel is much greater. I know CBEs do fuck-all in N/A fashion but in my case I stand to gain from one. Would it behoove me more to get the cat out of the front pipe or is there a noticeable gain to be made via a catback? Or at my power level would you just keep your cash and spend elsewhere?