Protege Garage Exhaust Manifold V3 Installed

TheDoc

Member
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2008 Mazda Speed 3
Well, the call came in on Friday. Ken, from Protege Garage, called me up and let me know that the manifolds were here. I met up with him that afternoon (actually skipped out on work haha) and picked mine up.

Protege Garage's garage has become a store room the past few days with all the new stuff that's been coming in (forgive the bad cell phone pictures).

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I had done a test fitting on a prototype manifold a few months ago and had been anxiously waiting for the final version- which, I've been told, is the last revision of this product.

So, first things first: the construction of the manifold.

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The manifold is made from 304 stainless, and it looks fantastic. I took a caliper to all the orifices and every opening is .05in of stock. The pipe walls are over 3mm thick, which is an increase over the previous version. The structure is adequately braced, and from everything I can see should last for a very long time-- not that I have any concern, but the manifold is covered with a lifetime warranty... which is unheard of for a tuner manifold.

Also included, free of charge, is an EGT bung, which is really cool.

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The kit also comes with a 1/4 NPT bolt incase you choose not to immediately use the bung.

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So, you get the idea- the thing is really solid.

I spent a few hours yesterday installing it with some buddies and it was just a breeze. Having done this once before, and knowing what it entailed, we were able to get this completely done in just under 4 hours.

Fitment was perfect to my stock turbo, and will mate right up to all the GT and T3/T4e options that are out right now.

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Having driven around now for about 100 miles, I am absolutely in love with this. I was able to reuse my stock gaskets without a single sign of a leak, or any other issues. Down low, there is a big increase in torque. I won't make any over-the-top comments saying that you now own a diesel truck, but there is a definitely measurable difference. In fact, all over the powerband, the car feels "healthier"- but, without a doubt, the most significant difference comes up top where the car just screams.

The turbo spools faster, the exhaust note has become more throaty, and around once you get around 4500RPM, you just blast off.

I don't want to perpetuate ricer math- so I won't... instead I'll simply say that this is a more significant change than any other mod I've added to my car.

At $499, this is the cheapest manifold on the market- it's long runners and competent bends are just what you want. I don't see the point in paying an additional $400-$500 dollars for a custom fab'd one that will produce an unquantifiable difference in power, nor a cheaper option that doesn't come with the bung or warranty offered by PG. The ability to accommodate an EWG and fitment, even with the ETS TMIC, make this, in my opinion, the best option around.

I would definitely recommend checking this out.
 
Very nice write-up! Now I'm debating if I should get this and install it, the COBB downpipe and Turbo XS CBE all at the same time. Hmmm....
 
once again PG coming up big. looks like this might be next on the list for me. whats the hardest part in installing this, cause ive been looking into a turbo manifold for sometime now and everyone says its a PITA install
 
Very nice write-up! Now I'm debating if I should get this and install it, the COBB downpipe and Turbo XS CBE all at the same time. Hmmm....

Having this on makes the downpipe easier to do- just because the runners are a little out of the way. That being said, doing both the downpipe and manifold at the same time would be ideal.

once again PG coming up big. looks like this might be next on the list for me. whats the hardest part in installing this, cause ive been looking into a turbo manifold for sometime now and everyone says its a PITA install

Well, I mean... it's not quite as simple as an intake... it just requires that you not get frustrated and work at your pace. Let the engine cool down before touching it (you don't want to begin a 6-7 hour work session with a third degree burn on your wrist- it makes the process unpleasant), and just take your time.

Once you get the intercooler and heat shields off, it's just a time consuming process getting the 14 bolts off the manifold (10 on the head studs, 4 on the turbo)... it may require some climbing inside the engine bay, but it's nothing that someone with a minimal amount of mechanical inclination shouldn't be able to deal with.
 
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Absolutely. The only instance in which I could see this being easier from the bottom would be if you had the downpipe off at the same time. Otherwise, everything you need to get to can be reached from the top.

Just make sure you have a good collection of 14mm... everything. Swivel heads, box wrenches, etc... you'll use them all.
 
Awesome review! I just purchased my DP/RP combo and have toyed with the idea of a manifold. What tune are you running on your car? I was planning on getting a AP next week but im not sure how the AP will work with the addition of a manifold.
 
wow awesome!
might have to get this along with a downpipe and skip the racepipe for now
got a standback that i need to chuck in, along with PG's FMIC.........
 
Hey thought I would just chime in on the comment of smoking turbos. I put my cs rp on awhile ago after my cs dp. Started to smoke immediately. But after setting my idle speed to 900 rpms now, no smoke. I don't know if you would call this a fix, but I haven't smoked since.
 
a catch can will solve most of the smoke prablems. all that extra exhaust flow is pulling the oil out the crankcase what what I remember Tim Baily saying @ surgeline tuning. Get a catchcan.
 

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