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2013 Mazdaspeed 3 158000 Chicago IL Occasional stumble/breakup at WOT Built motor. BNR S3. PD tuned and all supporting mods New OEM coil packs within the past 1000 miles. So I have had a cylinder 1 misfire code twice now, plugs only have about 2500 miles on them so I decided lets just replace...

2013 MazdaSpeed3 152,000 Mi Chicago, IL P0171 Same Cobb AP PD Tuning No Yes Recent repairs, Installed 3.5 inch JBR intake, BNR S3 turbo, 3 BAR Map sensor and a Stage 2 Damond catch can that is VTA. I got the car back up and running yesterday after all this work and everything seemed fine...

So I plan to lower the car this summer and I'd like to hear from anyone running either of these setups. My original plan was to run Swift Springs on Bilstein B8s as that seems to be a very popular choice. My other option would be the Bilstein B14 setup which looks to be a little cheaper. The...

Wasn't too bad at all. Working on stripping it down to a long block today so I can hand it over to get built starting tomorrow! What started as what I thought was just a worn out turbo has resulted in this. Hey at least next summer is going to be a LOT of fun!

So I searched on this site and around the Webz and found one vague post on another Mazda site about this. Has anyone replaced the bearing on the intermediate shaft? I am not aware that mine currently has an issue but since I'm pulling the motor and will be down for a few weeks I figure this...

So I missed the boat on a new OEM long block from Mazda. So the next logical thing to do is build the motor. I've been trying to read up and research this as much as I can and there is a wealth of knowledge here. I know that I want to run a 4032 piston as my HP goals are not crazy and I want...

Well its another "I'm using a lot of oil" thread. I recently installed a BNR S2 to replace my tired K04. I have since realized my leak down numbers where not good. Due to inexperience I assumed if I was in the green on a Snap On tester I was good. Well I'm wrong that's for sure. So I'm assuming...

Ok first of all I apologize if this has been answered somewhere and my search skills suck. I feel like this topic has been beat to death in a way but I have not found a good answer. I have a 13 Speed3 that is in need of a turbo, still on the stock K04 @139,000 Miles! Car is using oil and plugs...

Ok so my car has had some issues over the past week. At first I thought it was a fueling issue so I went down that path. I got to a point with troubleshooting where I realized this was a little beyond my means. Mainly what triggered that decision was some of the DTCs I was able to pull from...

Hey everyone figured I'd say Hi! Long time MSF forum lurker and since that's gone I'm here. 13 Speed 3 Mostly stock at 124k I'd like to drive it to at least 200k I do have some questions for anyone here as far as a diagnostic scan tool solution. I stumbled upon Forscan software for...