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Discussion Starter · #1 ·
I got a 02 GT bone stock with a few bolt ons CAI,off-road x pipe,pulleys etc.,etc. I'm wanting to ungrade my throttle body and I can decide on which one to go with I like the BBK, but afraid of losing power due to the 78mm size. I'm thinking this is too big for bone stck internals, can anybody give me some input on these throttle bodies and any rule of thumbs that anyone may know when choosing throttle body size. Below are
the links to the two different throttle bodies I'm considering.

http://www.jegs.com/i/BBK/129/1780/10002/-1

http://store.summitracing.com/partdetail.asp?autofilter=1&part=TFS-K51824075&N=700+0&autoview=sku

http://store.summitracing.com/partdetail.asp?autofilter=1&part=TFS-K51824070&N=700+0&autoview=sku
 

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Stock should be fine. 78mm is definitely way too big for a stockish setup.

Your money could probably be better spent elsewhere.
 

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I have a blower in my car making over 8# of boost and I use a 70mm one!
 
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