gen 1

Ever since I got this turbo (BNRS4) from a buddy and installed it, I've been getting boost creep all the way to 22 psi on spring pressure. The internal wastegate is opening, but not enough to vent the boost built. By swapping out a new one, I've already verified that the wastegate actuator isn't...

I have a Gen 1 speed3, it runs great. I noticed though that my AFR today was 14.26-14.41 on cruising. I thought it was closer to 14.7 before… mods: 3” turbo xs catless downpipe and testpipe 3” custom aluminum modified mazdaspeed brand intake Autotech high pressure fuel internals. Damond...

Just installed my turboxs catless downpipe and racepipe on my 09 gen 1 speed3. It sounds awesome. However, roughly 30 miles after the install, 3 miles into the third drive after the install (which I didn’t let it sit and warm up because I had to get somewhere), it threw a CEL with a P0421 code...

I recently got a set of kicker CSS68 and CSC68 speakers to replace my crappy Bose door speakers in my 09 Mazdaspeed3 GT, plus some Pioneer TS-G520s for under the front seats. Along with those, I picked up a Kicker 46HS10 Hideaway Subwoofer with a 180-watt amp built in for the trunk. It comes...

I have a turboxs downpipe and testpipe I plan to install soon, but want to avoid any leaks. For those wondering, yes I have upgraded HPFP internals. My car (2009 gen 1) has 155k miles on it, with I believe the original downpipe gasket and exhaust gaskets. When I bought the DP, the guy threw in...

I'm in the market for a catless downpipe for my 2009 MS3. Ideally, one with reduced bungs that didn't throw a CEL would be great. I have one guy who will sell me a used TurboXS downpipe for $170. The other option is an eBay downpipe, new for $110ish shipped to my door. What is the move? I hear...

I recently sold my speed3 to a buyer and disclosed known issues, which were just the piston rings on cylinders 1 and 2 being worn (not terribly) and the ac being out. This was all I knew of at the time. 3 days later, he sends me this video with permission to ask the question here. It is a...

For the longest now ive been having a cylinder 4 misfire that will come and go out of random. Ive gone through and replaced a ton of hardware( spark plugs/coil packs/wiring harness/fuel injectors and seals/ fuel rail and injector harness/) only time I've noticed a difference of the problem...

Hello! I bought my Mazdaspeed 3 about 3 weeks ago now and I've been loving it, however have just been noticing an unusual problem. Its a 2008 gen 1 model, completely stock, and treated quite well by previous owners. Often after I accelerate quite fast and hit the brakes they feel really stiff...