[quote author=nissandude83 link=topic=85264.msg1859404#msg1859404 date=1195226607]
Where did you get that cap for the silencer? Is the engine alot louder now with the spacer, cap and intake? How about fuel economy, have you noticed a difference for better or worse?
[/quote]
The cap for the air silencer is a generic oil cap (I think) I bought from Murray's for $9; it fits perfectly.
The engine is
A LOT louder with the mods I've done. The CAI just makes the stock engine noise a little louder and also adds an air sucking sound. Removing the air silencer makes the engine growl like a V8. Actually, right after I removed the air silencer, I was leaving work and the next day my friend says, "so you got your exhaust installed? it sounds awesome..."
I'm very pleased with the throttle body spacer. It makes everything louder and deeper and I can absolutely feel the difference it makes during acceleration. Before I installed the tb spacer, my mpg was always around 22 (21.7-22.2). I reset the mpg and I drove my 30 minute highway commute home from work and got 31mpg (being light on the gas). After a few days of my normal, "spirited" acceleration habits, it has been 23.5ish.
I was a bit skeptical, like a lot of people are, about the tb spacer, but it is an awesome, cheap, easy mod that you can feel and hear.