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I'd say that our turbo is in just about the optimum position given the layout of the car and powertrain in other respects. Chimmike is dead on right. Focus on "go" not on "show." If you want a Honda, you're in the wrong place.

He wants a cold air intake. That's his choice and it was mine. Now, he would not have the problem with his IC plumbing with a SRI, I agree. But it is, with respect, ignorant of physics to conclude that because the intake charge goes through a hot turbo that the beginning intake temp at the...

I guess you guys know you are in the WRONG forum section. If you start a thread in the regular Mazda 3 section, and not the Speed 3 section, you might actually get some responses from other people with cars like yours. BTW: 13.2 @ 108 with simple bolt ons.

More info, please. Does wheel position, left, right, straight ahead change the sound? What is a loud vibration? Loud is a sound. Vibration is a movement. What does it sound like? Is the sound high pitched or low, constant or sharp repetitive sound? Where and what is shaking? Please be...

Been a month. Still waiting for "dyno papers" and AP data logs. While we wait, I encourage OP to go over to mazdaspeed forums board and search very, very hard for real 340-350 whp stock turbo cars, even with E85 fuel. That board is the hangout for the most technical and skilled engine...

Why not just unbolt the entire CBE and run exhaustless? What's the point? Loud is not fast. CBE mods on our cars do not produce meaningful power gains on the stock turbo. You are only engaging in noise making. Just hang a Honda fart can on it and call it a day. Or you could sell the POS...

^ Truth. And the Mazda on-line community is very knowledgeable about this platform, has a wealth of experience, and is always willing to help out. There are a number of boards besides this one with varying levels of technical expertise. This forum does not allow us to cross-post to the...

You ought to replace it with the exact same model and size as the damage one. Check Tire Rack for pricing and then compare with other on-line tire retailers. Once you have the best price in hand your local retailer may agree to match the price. But, don't you still have some of the original...

Please check out my reply to your thread on BOV. I respectfully suggest that you take some time to read the stickies and learn about how our cars respond to mods. It seems you are more interested in sound (BOV and cat back) than with performance. That's o.k., if that is what you want. But...

Best GOOD and CHEAP BPV for our cars is free - the stock one. Welcome to the board. Take some time and read the threads on BPV's and on intakes, for starts. Believe me, the stock BPV is extremely elegant and well made on our cars. Replacement BPV's never make more power unless you can...

^ Please do, along with list of ALL mods and E85 concentration, if he is truthful. Better yet, ask him for an AP datalog or two for us to examine on a WOT pull from 3,000 rpm to redline in either 3rd gear or 4th. We can tell whether he or the dyno operator is blowing smoke by examining certain...

Listen carefully to the source of the sound too. It might not be coming from the valve cover. If it sounds like marbles rolling against each other and is coming from closer to the firewall on the passenger side it is the accessory belt tensioner and or idler pulley. There are Gates...

It is most likely either (1) the variable valve timing actuator/timing chain stretch, which is the subject of a 7 year, 70,000 mile extended warranty, or (2) the accessory belt tensioner and/or related idler pulley. From what you describe I lean toward it being the accessory belt tensioner...

^ This is good to know. Early released versions were not showing much over about 16 psi. according to many gen 2 users. It sounds like HT found a way to up the boost to gen 1 levels without the fuel pump pooping. If they release one for the '13, I'd like to see how they perform. It is...

Thanks. Your guess is as good as mine or better. I'm ordering shocks now. I'm going to spring for the adjustable rear camber arms and see whether this could be the problem. Attached are images from another forum which posted shots from the shop manual for alignment specs.

^ I'm not the OP. My tire wear is cupping on the insides of the tires and it absolutely happens only at the rear. I think you may be confusing two different people. I did not suggest that weight distribution or audio equipment or tire hopping had anything to do with. Just squat behind your...

Has anyone tried to address the rear cupping issue by using adjustable rear camber arms to reduce the stock non-adjustable negative camber? Negative camber places more of the vehicle weight on the inside edges of the tires.

Sorry, but if you have to ask these questions you are not ready for a downpipe, and I hope you know that the stock CBE outflows the stock turbo, so no gains from CBE. What are your current mods? The answers to your questions are already here in many threads. Please search and read. In the...