Thanks Matt, yeah we are all really blessed to have such a great site here. I really can't think of another site that has so many knowledgeable people and vendors who also are more than happy to share with us all.
Beefif installing yourself, very critical to follow the timing chain procedure to a t, even 1 tooth off is NO GOOD
check to make sure you don't need them. some of the aluminators I think needed OPG still[MENTION=15475]daltron[/MENTION] I have a set of MMR OPG's NIB that I have no use for since I'm most likely going with an aluminator in the next few months. I can give you a good deal on them and give you a hand with the install since I'm local. I looked over the guide and I don't think it's anything we couldn't do in the garage over a weekend.
The front of the engine IS opened up. Also the OPG failure is not high RPMs. It actually boils down to crankshaft jerk. Let me give you an example. You are rowing through the gears at WOT and you are on a bumpy road. Your tire loses traction just enough when it hits a bump and begins to spin then when it regains traction violently slows down. Crankshaft jerk then happens. Slamming gears is another. Bouncing off the rev limiter is a dangerous one also as it causes crankshaft jerk.The engine isnt opened up for a cg or opg. Such drama.
This isnt an over hyped mod. Unless youre a gambling man with extra cash to burn to be okay with the car having down time.
For those with increased rpms the trio should be done. No way around it.