First off, nothing like... OMG what is wrong. Just... I pushed my car fairly hard 3 night ago, 2 nights ago, and last night... all felt perfect. Tonight when I drove... unless I am totally going crazy... I SWEAR my exhaust was noticeably quieter (no cat, single bullet and dump... generally prettttttty loud). And like.. in first if i just tapped the gas randomly, it still jerked forward some, but didn't seem to jolt me as much as i am used to. Just seems like my car is quieter and weaker tonight.

Any ideas? Last time under my car I noticed 2 of my wires never got pushed on to the opti 100% when i did my plugs... but I fixed em... and it's been fine. Looked under tonight and driver side plugs are firmly on the opti... cant see passenger side right now.

IDEAS?

EDIT: Also, my gas guage is horribly inaccurate always.. but still seems to be consistently inaccurate... like it hits the F mark at 85 miles. Well... seems like it is going down faster than usual also.