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Would that be enough to limit my boost in lower gears like I’m experiencing? I can barely make 8psi in third gear.

Hello, My speed3 is running low on boost (13.57 psi is the most I can get from it if I’m pushing it hard, and this is in 5th) but seemingly not leaking boost when I tested leaks from the turbo back. I can only make 8psi in a 3rd gear wot test. I’m running the Mazda CX-7 turbo (K0422-582) that...

Did you ever make your boost leak tester and run a test?

Thanks! I'll stick with 3" for now. While the advice is great, no one fully answered my original question on the eBay exhaust manifolds. Can anyone running them or knowledgeable in that area chime in?

Awesome. I appreciate the knowledge. I was more asking on the exhaust manifold for down the road. I’ll try to find a full intake around and see what I can make with it! Thanks guys! Also, will I need to slim down my battery? I want to avoid that if possible.

Ok, so like a Corksport SRI? Or would you recommend something different?

Right now I’m just running upgraded HPFP internals and a Cobb RMM. Soon, I will be doing an Cobb SRI and Corksport inlet hose. Downpipe + exhaust soon after that.

I’m considering upgrading my stock turbo/exhaust manifold and getting something a little more performance. I have seen turbo manifolds on eBay for relatively cheap. They look better than stock, but do they hold up? I attached a photo of it. Here’s the link to one I was looking at...

Thank you! I will check those out and get one. At what point would you recommend the more expensive freektune? He offers the one which has more revisions, and the cheap one. I plan to do a turbo inlet hose and a SRI from cobb. My bottom line is to have the car run safely while getting some extra...

Hi all! Today I threw a stage 1 cobb ots map on my 2009 Speed3. I first noticed that it felt way faster when pulling (Yay!), but soon after I saw that I was only making low 13's psi boost. I also saw that my AFR was different on WOT, staying around 11.76. There was a bit of Knock retard in one...