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Old 01-06-2011, 06:42 PM   #1
thesnoopster


 
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Installed Kooks Headers & Dyno'd My L99 Today

Greetings C5!

Today I had Kooks 1 7/8 long tubes headers and cats (Compliments of Maryland Speed) installed today at PTuning (www.ptuning.com) in Manassas, Va. They also dyno'd my L99 as well (just pulls no tuning). The guys here are great people and they knew what they were doing on the dyno as well... they got a thumbs up from me!

Before I had a SCT tune from Ted Janettey (I cant thank him enough for what he do for us ), Roto-Fab CAI, and Flowmaster AMT Catback. They conducted a before and after pull and I must say I was (and so was the guys at PTuning) impressed with it over all.

Here is the results:

Before Headers: 363.1HP/375.5TQ

After Headers: 370.7HP/388.3TQ

They also told me that these pulls were pulls with "No Correction Factors Added" and he also told me that their dyno gave lower readings. I must say that these were some nice guys. Anyway pics are below.

First couple is pics of the install and shop.

Chime in if needed and Thanks for looking
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Old 01-06-2011, 06:56 PM   #2
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good review and cool pics. you planing on getting a new tune ?
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Old 01-06-2011, 06:59 PM   #3
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Nice, how does she sound, drive?
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Old 01-06-2011, 07:00 PM   #4
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good review and cool pics. you planing on getting a new tune ?
Yeah Im gonna work on that soon....and cam shopping as well LOL
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Old 01-06-2011, 07:03 PM   #5
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Nice, how does she sound, drive?
With the flowmasters and roto-fab.... very deep! and it roars harder now and she goes now, alot better than before I tell ya. I wish I had a video to show how it sounds. My damn video cam is shot to hell (you gotta love kids that drop stuff on sidewalks LOL)
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Old 01-06-2011, 07:15 PM   #6
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Very nice Snoop! The newfound powa is always a welcome addition!
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2010 SS L99, 536rwhp 10.843@126.72. Whipple Supercharger stock pulley, ARH 1 7/8 longtubes w/ catted xpipe, magnaflow 3" mufflers, ADM Race CAI, 3:70 gears, lightweight wheels and nitto drag radials. Stock internal L99, stock converter.

Bolt on best before blower 12.22@113.29 w/ nothing but ARH headers, catted x-pipe, ADM CAI and a tune on stock Pzero`s!

Other car 2008 C6 Ls3, z51, A6, Npp Exhaust, best bonestock pass 11.80@118.82, Number 2 on the Corvette Forums Bonestock fastest list..
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Old 01-06-2011, 07:25 PM   #7
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Is there somethig wrong with there dyno? 7hp gain cant be right! Can you feel any difference in power?
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Old 01-06-2011, 07:31 PM   #8
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With installing headers only a small gain in HP...How come...
Curious to know...
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Old 01-06-2011, 07:33 PM   #9
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Quote:
Originally Posted by GMRULZ View Post
Very nice Snoop! The newfound powa is always a welcome addition!
Thanks bro... Im trying to be like you when I grow up LOL

Quote:
Originally Posted by tonystark View Post
Is there somethig wrong with there dyno? 7hp gain cant be right! Can you feel any difference in power?
They told me that their dyno reads low, but they said it gained a lot of tq. When I put the tune in the car I didnt have the headers yet so I think I may need it re-tuned. As for differerence, I feel a lil more umph in it compared to what it was before...but I think this is average for an automatic with these bolt ons.
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Old 01-06-2011, 07:41 PM   #10
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yeah, that sounds real low. from everything i have read , lts should get you approx 30rwhp.shorties are gaining about 5 rwhpp .are you saying you did not tune for the headers, only install with no tune? if so, by moving the cats farther away you will throw a code soon from evrything i have read..you def should look into a dyno tune..good luck
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Old 01-06-2011, 07:50 PM   #11
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This Dyno is dead on with those mods... The first dyno was WAY high for an L99 w/ no headers...

Quote:
Originally Posted by thesnoopster View Post
Yeah Im gonna work on that soon....and cam shopping as well LOL
Go Torque Converter shopping first... you won't regret it. (best bang for your buck) I'm cam shopping now also...
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Old 01-06-2011, 08:00 PM   #12
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from a earlier post..K&N CAI, corsa cat back, JBA high flow cats , dyno tune = 397 whp
new setup
K&N CAI, corsa cat back, kook longtubes ,dyno tune = 417 whp

the tune was a big part on adding the HP
now i,m not sure if ls3 or l99, but gain was 20 rwhp, but you have similar set up..and gained 7rwhp...so its possible that the dyno tune gained this op the 13 hidden rwhp..whether the tune or the headers actually gained him the 13 is questionable..
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Old 01-06-2011, 08:15 PM   #13
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Nice numbers...now its cam time to get 400+!
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Old 01-06-2011, 08:16 PM   #14
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Quote:
Originally Posted by mikepage0007 View Post
from a earlier post..K&N CAI, corsa cat back, JBA high flow cats , dyno tune = 397 whp
new setup
K&N CAI, corsa cat back, kook longtubes ,dyno tune = 417 whp

the tune was a big part on adding the HP
now i,m not sure if ls3 or l99, but gain was 20 rwhp, but you have similar set up..and gained 7rwhp...so its possible that the dyno tune gained this op the 13 hidden rwhp..whether the tune or the headers actually gained him the 13 is questionable..
Guarantee that's an LS3... 370 is the right on the mark for an L99... no way they get even close to 400 w/ LT headers, CAI and tune.

Here's my dyno sheet with the same mods...
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