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Originally Posted by BOYD3800SII
Hey man that's great stuff right there! I will try the one on my dash next time and compare it to the phone for S&Gs. Has anyone actually seen any improvement (even the slightest) with the removal of the exhaust valves without replacing the entire exhaust from the CATS back to the muffler? I have to admit that they are kinda dumb, but I don't know if removing them will affect the engine switching or set CELs without a tune. The only suspension mod that I currently have is a ZZP tower strut brace. I also purchased some slotted and drilled brake rotors but the car stops on a dime with the stock ones. I'm just gonna wait until warranty goes before I do anything else that might give me grief. Car only has 6200 miles on it. I don't plan on any other suspension parts because the car handles like a dream. GM really did a wonderful job with this platform.
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Remove the valves. That's part of the most recent thing ive done with exhaust. Well worth it. Ours are not like the v8 which stay open and close when in 4 cylinder mode by an actuator. They are spring loaded and no hole in them. Its literally like a door. The engine spends pumping power to keep them open. Great for sound control in 4 cylinder mode, but a bit taxing at any rpm.
I was skeptical A.F. at first when i originally digged into the exhaust, but after doing more research and forum advice, i removed em.
I posted pics in my members journal of the insides. Truly its a no brainer. Where you have peeps worried about crushed pipes, but not worried about a spring loaded door, baffles me now.
Never been big on drilled rotors. Slots are for show really. Pad materials arent like the past. And given the rotor is a giant heat sink, you want as much mass there as possible.
I exceeded the stock single pistons the first summer i had the car. Later added the 4 pistons with oem ferrodo pads and now on 6 pistons with hawk street/race pad which is their old dtc-30 compound. Im a performance/functional type guy and dont cry about brake dust.
