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Ls2 fast 102 or not?

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Old Mar 6, 2014 | 07:13 PM
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Default Ls2 fast 102 or not?

I have a 2005 z51 Manuel car I just installed lg super pro longtube headers with there catless x-pipe, vararam cai, corsa extreme cat-back, and a dyno tune made 383rwhp. I bought the fast 102 but my tuner tells me not to install it he's says ill lose horsepower is this true?
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Old Mar 6, 2014 | 07:29 PM
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Originally Posted by jryder916
i have a 2005 z51 manuel car i just installed lg super pro longtube headers with there catless x-pipe, vararam cai, corsa extreme cat-back, and a dyno tune made 383rwhp. I bought the fast 102 but my tuner tells me not to install it he's says ill lose horsepower is this true?
do it!


http://forums.corvetteforum.com/c6-t...st-on-ls2.html
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Old Mar 7, 2014 | 10:26 AM
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Find a new tuner!!!!!!!!!!!!! i have never seen a N/A ls2 car go from stock manifold to fast 102 and not gain atleast 18rwhp. mine picked up 22rwhp with just installing fast 102 and retuning for it.

where are you located so we can help you find a tuner that knows what they are doing.
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Old Mar 7, 2014 | 11:23 AM
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Get the 102 dude! You will not lose HP, you will gain major HP with it. Hopefully your tuner hooks you up since he already tuned your sled because you'll definitely need a new tune.
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Old Mar 7, 2014 | 11:46 AM
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Wouldn't want that tuner
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Old Mar 7, 2014 | 01:21 PM
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Default not true

Originally Posted by Jryder916
I have a 2005 z51 Manuel car I just installed lg super pro longtube headers with there catless x-pipe, vararam cai, corsa extreme cat-back, and a dyno tune made 383rwhp. I bought the fast 102 but my tuner tells me not to install it he's says ill lose horsepower is this true?
it will pick up good hp even unported. now is the time to do the porting though. do not install with out porting
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Old Mar 7, 2014 | 04:55 PM
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Originally Posted by Jryder916
I have a 2005 z51 Manuel car I just installed lg super pro longtube headers with there catless x-pipe, vararam cai, corsa extreme cat-back, and a dyno tune made 383rwhp. I bought the fast 102 but my tuner tells me not to install it he's says ill lose horsepower is this true?
My 05 z51 manual made 403 with LT's, xpipe (no cats), vararam, and fast 102 (unported).
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Old Mar 8, 2014 | 12:20 PM
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Originally Posted by smurfkiller
Find a new tuner!!!!!!!!!!!!! i have never seen a N/A ls2 car go from stock manifold to fast 102 and not gain atleast 18rwhp. mine picked up 22rwhp with just installing fast 102 and retuning for it.

where are you located so we can help you find a tuner that knows what they are doing.
I'm in sacramento ca
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Old Mar 8, 2014 | 12:23 PM
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It's at the shop today getting installed. I'm looking for a better tuner in sacramento
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Old Mar 12, 2014 | 11:14 PM
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I just installed mine and had it dyno tuned 1 hour after install...I only picked up 4hp with it and tuner said that is normal and fast isn't worth it. im possibly looking for a second oppion asweel
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