what does a throttle body spacer do? does it help?

 

Although it may produce a power increase in the older 350's, it is a waste of money on our 5.3's.
I say dont get it.

 

Sorry tylerz71, but I disagree. While they did alot for the older 350 engines, they help on the 5.3 as well. It is one of the best mods for the price. I got better milage and better throttle response. I was really impressed and I was a sceptic. I figured $50 was worth the gamble, and would recommend it to anyone.

 

Since you have oe and I am just going by what I "heard", Ill definitely trust you on this.
Ive heard about them setting off codes and such...
but now I might even consider one.
What about the TB bypass? is it worth it?

 

The TB bypass gives a little better throttle response, but that is about all I noticed. I was concerned about this as well, but no ill effects after 1 year. If I was doing mods again, I would do throttle body bypass, spacer, then intake mod (maybe the K&N filer with the aftermarket straight tube since it is les expensive). Then either the predator programmer if you like to play with things or a custom tune. All this is less than $500 and the biggest gains.

 

Definately get a Trans Dapt - Torque Curve throttle body spacer man.

 

are they hard to install?

 

not at all... remove a couple bolts, put it in, put a couple bolts back in... real simple, definitely more than worth the money

 

where do you get a trans dapt tbs?

 

www.summitracing.com was $62 to my front door. Only took 2 days to get here but that's because I'm only 3-4 hours away from their warehouse in Montgomery, LOL!