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FM-13 # what do you think

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Old 10-17-2006, 11:04 AM
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Originally Posted by lilbuddy1587
Get a cut-out too. That proflow catback is something I've never heard of and you never know how much of a bottleneck it could be. You could free up as much as 10rwhp with a $60 mod. Is the car tuned as well?

The cat back is by SLP it is there quieter exhuast to the LM I have seen dynos of that system with good power . Yes the car is tuned I just got it back . Obviuoslythe LS1 intake is a big restriction
Old 10-17-2006, 11:06 AM
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Originally Posted by WS6FirebirdTA00
F13 cam is ok

get some good heads and intake and this setup will be great. I just did 473/441 with this cam. With all the right mods and good tune, I see no issue with this cam puting down 430 cam only, you just dont ahve all the mods needed for it. I would think you would be solidly near 375-385 if the tune is good. That LS1 intake is going to kill it. Definately has potential though
What ICL and LSA were you running? 47x is certainly doable with a F13. A local turned very close #s to you. 43x will be tough on stock heads but maybe possible.

I did 436rwhp 415 rwtq on a F11 112+4 and TEA stg 2 5.3s on my C5. Kooks 1.75", LS6 intake and a ported stock TB. No electric water pump.
Old 10-17-2006, 03:56 PM
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Originally Posted by TOS98SS
The cat back is by SLP it is there quieter exhuast to the LM I have seen dynos of that system with good power . Yes the car is tuned I just got it back . Obviuoslythe LS1 intake is a big restriction
Correct that particualr catback is probably one of the best flowing catbacks availabe. But adding a cut-out wont hurt and you will probably gain as much as 10HP being that a cut-out is straight through and bypasses 80%



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