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I never said it kicks in faster...in fact, I said the exact opposite and asked if this would have been advantageous for my needs, seeing as I'm still on stock internals. The differences seem to be only marginal, but it sounds like the S4 produces more results higher in the rev range. 300rpm lag...

Alright then, sounds like a plan! I'll look into getting a decent catted DP and maybe upgrade the catback along the way. Seems like the S3 is a good fit for what I need, but there a couple of things the S4 has that sound enticing, like the anti-surge compressor housing, a 3.5" compressor inlet...

Thanks for that info! I’m going to be reading up on a lot of this later this evening. I currently only have the OEM exhaust setup; should I consider replacing that if I decided to go the GTX/S3 route?

That's a strong case for the S3! Thank you all very much for your insight. It's all greatly appreciated. Any benefit of going with the 2867 in terms of reliability under daily driving conditions, over the S3? They're separated by a good chunk of change, so I'm curious if it's worth the extra...

Thanks for the info! Is there any validity in the S4/3076 claim (or other comparable alternatives) and having it tuned more conservatively? I plan on sticking with this new build for a long time to come and ultimately want the most reliable build (short of forged internals)

Hi all, Reliability is paramount in my new build. I am contemplating three different turbo options: BNR S3 BNR S4 GT3076R (used, but same price as the aforementioned BNR kits) I am ignorant, but I figured the S4 would be a great fit since I can have it tuned for lower psi and only really have...

Sorry, that may have been a bit misleading. I've always used premium fuel. I took that part out. Yes, due to the age of my motor I clean the valves out 1-2 a year. Your mileage may vary, but I noticed that as the car got higher in miles, the gunk built up faster (possibly due to blow by, I...

Hi all, I'm fairly new around here, but I've had my Speed3 for a while. As she's about to roll over 300k, I wanted to rebuild the car and bring it back to its prime - but I also want to improve things along the way. The car has been OEM, bone-stock, all of its life, so this will be a fresh...

Wow, that is interesting. Didn't know about this. Here's the photos I got from the guy selling one: He's asking $500 for it. It's nice to own a little bit of history, but I wasn't sure how it would compare next to offerings from aftermarket makers of today. Thank you for teaching me about...

Hi folks, Anyone heard of a factory performance exhaust option for Gen 1's? The only part number I got is: SU-S8ML26 I came across an ad of someone selling a used one, and here I am wondering what on earth it is. Does anyone know more about it? Thanks!

Thanks friend! Hoping the DM OCC kit with the breather will help alleviate certain problems with the new motor. Thanks for your input!

Hi folks, I have an issue with my current motor where I find my TIP leaking oil, and I also find oil in my intake. The engine does have a compression issue (200 / 145 / 145 / 200), so I'm wondering if this is just blow-by symptoms - if nothing else. My K04 has less than 15k miles on it and I...

Hey Raider, I'm thinking of picking up a DM OCC Stage 1 for my new engine. A bit illiterate with these sort of things - but do you think it's something I should go ahead and do? Considering adding the optional VTA kit to future proof it for when I do decide to add mods to the car - but it'll be...

THE CAR Color: Silver Mileage: 298,xxx Year: 2007 (Gen 1) CURRENT BUILD Chassis & Suspension: 100% OEM (Yes, even the RMM!) Brakes: 100% OEM Body & Lights: 100% OEM Engine & Cooling: 100% OEM (with 01-002/11 Service) Drivetrain: 100% OEM (currently on my second clutch) Wheels: Mazdaspeed 6...

Hi all, My name is Mike, and I'm a Speed-a-holic. I have an all stock '07 Speed3, who is currently on the edge of turning 300k miles young. I wanted to celebrate this occasion by rebuilding my car and decided to join this forum to share my experience with so many of you that have indirectly...

Thanks Raider! I actually followed a lot of your advise as a lurker of the forums, so this isn't the first time you've helped me. Thank you for chipping in! Thanks Awafrican! I appreciate it - I've had my MS3 for years but just only started being social about it. I wasn't entirely sure about...

Are DTA axles still a suitable OEM replacement? I came across this post, with some users vouching for them: https://mazdaspeeds.org/index.php?threads/dta-axles-and-slide-hammer-tools.4623/ Here's an example listing: https://www.ebay.com/itm/272734818918 My Gen1 is making stock power, I just...