over on ls1tech there was a lot of talk about the throttle body spacer and whether or not it really did anything. one guy said he got 9 hp and 17 i think torque improvment on the dyno after installing it. i drank the hop on the ban wagon juice and got one. i had it put on today which took all of maybe 30 minutes with a 5 minute interuption from the mother in law, dropping the f*cking screw driver into the engine , and also a socket decided to pop off the ratchet so i had to do a scavenger hunt for that. took it for a drive a lil bit ago and i was able to get my tires to spin some at 30 which i couldnt get before. i know a lot of people who went with the airraid TBS said there was a noticeable whistle that it made, kinda like a turbo. i didnt think i would like that so i went with the hamburger TBS and there is only a lil bit of a whistle at certain rpms so i am very happy with it. here is the link to what i went with. i would recommend this mod if you have $100 laying around and 30, at the max, minutes on your hand.

http://www.shopatron.com/product/part_n ... 264/1526.0

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Only a memory
Pioneer Nav/Magnaflow Catback/E-Cutout/Poly MM/CAI/160*/TBS/STB F&R/Wrapped X-Over & 3'' DP/Flip Paint/XP5243 Atl. Plugs/10.4mm Taylor Wires/SSC

256HP/341TQ
14.05 @ 100.4 2.24 60'

it mostly only works on real engines
none of those sissy little engines that lost their cylinders

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I need to get one

Mine worked really well on my 4.3 L S-10 V-6, but then again, the bore and stroke are identicle to the 5.7L, just minus 2 cyl.

Works very well on my 5.3L truck. Don't have one on the GXP yet.

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2007 GXP w/ minor mods

I have one on the way from Summit. Been on B/O since April. I too will drink the cool-aid and see. Its funny how something so simple can have that affect.

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-Any government big enough to give you everything, is powerful enough to take it all away.
08 GXP, Magnaflow Cat back, CAI, K40 Calibre w/ laser diff, Hamburger TBS, SLP 1.85 rockers, Heat soak kit, Inferno CF hood
13.779 @ 100.26