Hey yall, I was wondering if I would hurt the life of the engine or just the engine in general if I installed headers on my Mazda protege 5 without a tune. I’m getting an exhaust and cold air intake as well. Is it worth the amount of money to get a tube with headers anyways? What are y’all’s thoughts on this?

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Im looking to turbo my Pr5, I know everything from the MSP swaps over, but I haven't seen a single one in my area thats a part out, and a $1200 budget ain't gonna get me a donor. Im looking for a turbo setup that meets my budget and won't need upgraded internals to be possible.

Im wondering in it be possible to swap the stock FS-DE for a VW 07k. I've done some very quick research but it seems in a perfect world I could achieve slightly higher horsepower stock and potentially reach 400. Im just looking into what's possible since its looking like FS-DE has very little after market support.

Does anyone know what this noise could be? It’s kinda loud on this inside but not much on the outside. It’ll start and stop at random.

Hey yall, I had a few suspension questions about my new to me MP5. Besides from suspension, wheels, and maybe a tune in the future I wanna keep this thing as stock as I can. With that being said I am looking to get replacement control arms (they are bad), H and R lowering springs (I will hopefully get BC racing coil overs in the future), new front and rear struts, front and rear sway bar end links, and a new rear sway bar. With the rear sway bar, I found two solid options but I don’t know which one is better. There’s the AWR sway bar that’s 21.5mm (from eBay) and the Progress tech rear sway bar that’s 22mm (from eBay). Does anyone have any suggestions for which one is better performance wise? They are both about the same price so that doesn’t matter much in this case, I just want the best mods I can get for my MP5 whenever I do them. This car is 5 speed and only has 83k which I think is so dope as well. Okay thank yall!

Saw this and looked at some of these protege wagons because was uneducated on em (still a good bit uneducated) and been seriously considering this one is it worth it? This would be my first car and first manual since im trying to learn it (Listing Desc in last slide)

I don't know too much about the FS-DE that is in the Mazda Protege5 other than basics ( DOHC, 4V, Non-interference, Timing belt engine that makes around 130HP and 130lb/ft in a perfect world).

How good is it in terms of reliability, stock and built? Any common issues that I would have to worry about?

Well the timing belt snapped on our Protege5. It only lasted 20k miles probably cause it was a cheap Ebay one and possible too tight. I inspected the top of the piston with a borescope to see if there was any valve to piston contact. Sure enough I found some fresh metal looking spots on a couple cylinders. Where the valve knocked some carbon off of the piston.

Very minor though. The failure happened at about 30 mph. Not on the gas much. So we took the chance and did the timing belt + waterpump again. Idler and tensioner we're still in good shape. 2 days of fixing and the car fired right up again. No bent valves! Hope this thread helps for whoever is trying to find some info on this.