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Everyone with the rear sway bar clunk- I've been living with the clunk for awhile now, sort of waiting until Mazda came up with a good fix for it... but a few weeks back the clunk changed into a banging noise that was fairly severe sounding. Put the car on a rack at my work and found a...

I wonder what percentage has had their stereos stolen. I bet the percentage of MP3's with stolen stereos is higher than the national average.

Injen has had their dyno on the MP3 down for awhile now. Isn't someone on here their test car? What's happening with that? Are they going to retest it? I know there was some doubt as to whether the CAI could really produce 8whp... anybody know if they are retesting?

Thanks to everyone who posted in this section- especially those who lend technical information. I knew plenty about engines, but nothing about turbo or supercharger systems until searching through these threads. Here's the setup I want... The gaol: 160whp with full boost BEFORE 3,000rpm...

Someone broke in and took everything from my car... how do I get a replacement stereo system? Mazda dealorship knows nothing of the stereo in my car and says they can get an "ES" system. Best Buy and Good Guys don't have the Z919 or Z828... help... anyone know who to contact?

Well, it finally happened. Just when you least expect it, parked in one of the cleanest, safest, most expensive suburbs in California, someone breaks in and takes the stereo, sub, and all. Lame. And I was just gearing up to sell it and buy a truck. So, in the interest of keeping it "factory"...

The lure of having more power is becoming overwhelming... all I wanted was a sporty commuter, but it's just not enough anymore. I don't want to go the turbo route though, so with an Injen CAI (claimed 6whp), custom exhaust, and intake/exhaust cams, is it realistic to expect a 15whp gain...

Okay guys, I've got roughly $1,000 to spend on performance upgrades. What's a good combo to get 155-160hp from this engine? Prefer to go the normallly aspired route. Suggestions?

So I've seen various people add components to their cars and get moderate improvement. One guy got 5-6 WHP from a low flow muffler, others get 4-5 hp from a CAI... So combine 5 for the muffler, 5 for the CAI, and maybe 5 for the lighter mazdaspeed clutch and flywheel combo, and the WHP goes...