I just bought my first SRT-8 and this looked a little funny. It the red colored thing sandwiched between the air cleaner and the throttle body a factory piece? What is it?
I did some searching for "throttle body spacer review" and found about 90% of folks say it's a joke. Then I found two dyno tests that proved about 5-10 hp gain.
Answer: hard to tell, depends who you believe. I doubt it does much if anything. Maybe it's just the loss of wallet weight that helps performance!
Oh well, I'm sure it doesn't hurt anything.
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1970 Dodge Challenger 440-4bbl-4sp (the toy)
1972 Chevy C20 Pickup
2000 Buick Regal GS (the beater)
2001 Ford Mustang GT (ex-daily driver)
2007 Dodge Charger SRT-8 (daily driver)