Update….
I picked up the car and the parts manager, service advisor and a mechanic came outside just to hear it start up. We chit chat and I can’t take it anymore, I go and start the car….it wasn’t what I was expecting, but it has a nice slow lopy idle, but nothing crazy. I was expecting crazy lopy, so I’m very happy it’s not. I get out of the car and we keep chit chatting, all this time I just taking in the sound…it’s actually quite nice and not loud (more on that in a bit) sorta laid back.
I leave the dealership and I can feel a lot more vibration in the steering wheel, but I had NGM motor mounts installed at the same time. They had been sitting in the garage for a while and figured while they’re messing with the car, they may as well do that too. I start heading down the road taking it a bit easy and the sound of the car is amazingly different. I can’t really describe it but when the RPMs climb it just sound mean, the engine exhaust and intake resonate differently, and sounds nice. Also I have an SSA cat-back and the buziness between 2500 and 3500RPM is gone, not diminished…gone. That was one of the best surprises. I don’t have headers yet but I feel much better about getting them now.
Anyway on to the meat of it all…When I was just driving around (under 4000 RPM) you can tell that there is a little less low end but definitely not the end of the world. If I would have to subjectively describe the percentage of lost low end, I would say about 10% loss on the low end, really not more then that. The magic is when you climb past 4500, the engine just says “Bring it on!”. I turned onto the highway and let er rip in 2nd but didn’t go above 6500…I’d like to do what I can to break them in a bit….but it’s hard. The acceleration above 4500 is sooo nice you get a nice push back in your sit that increases as the tach rise and in second it rises quickly. Shift into third and caught up with traffic so I slowed down cruising at 65MPH. Get an opening and drop to 4th and the car pull nice and strong, slow down again cruise in 6th, get another chance and drop to 3rd this time tach rise to 5000 and I got to WOT. The car just pulls all the way to the rev limiter (yes Malogus I pegged it twice on my way home! LOL!!). There is no noticeable dip in the power delivery at any RPM when you get past 5000 it really start to climb fast.
I got on to a country road no one around and launch from a dead stop….I found launch much easier now, most likely due to the reduced low end and the motor mounts, I let it climb near 6800 shifted in to second chirped the tires which activated the traction control…moved on to third same thing but traction control didn’t activate. It was probably close to 90degrees outside but very high humidity.
After that I had a nice leisurely drive back home…. with a big grin….All I can say now is more power!! Bring on the headers!!
BTW...No CEL yet knock on wood