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Old 11-09-2012, 02:36 AM   #1
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Longtube header HP gains.

So......do longtubes really give you more hp or is it deleteing the cats and putting in a tune thats giving the higher HP. Has anyone already had a tune and cat deletes dynoed then put on longtubes then dynoed again to see the real increase?
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Old 11-09-2012, 02:52 AM   #2
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I've dyno'd with tune,CAI, and Roush exhaust and I just installed LTs,off road X and Boss mani. We are setting up another dyno day so we will see soon where she is. Alot of people are going for just a off road mid pipe because they are getting gains that are almost the same as when adding LTs (so they say) and saving money by not going full exhaust. With my 07 I put on LTs,HF catted H,CAI and tune all at the same time and saw a 30 to 40 whp gain. I'm saying 30 to 40 because I never had a baseline and the 3V usually pulls in the range of 260whp stock.
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Old 11-09-2012, 05:40 AM   #3
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Quote:
Originally Posted by DDTCM
I've dyno'd with tune,CAI, and Roush exhaust and I just installed LTs,off road X and Boss mani. We are setting up another dyno day so we will see soon where she is. Alot of people are going for just a off road mid pipe because they are getting gains that are almost the same as when adding LTs (so they say) and saving money by not going full exhaust. With my 07 I put on LTs,HF catted H,CAI and tune all at the same time and saw a 30 to 40 whp gain. I'm saying 30 to 40 because I never had a baseline and the 3V usually pulls in the range of 260whp stock.
Whatd you dyno with the cai and tune? SAE?
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Old 11-09-2012, 09:54 AM   #4
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374whp.....little disappointing IMO but you know every dyno is different.
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Old 11-09-2012, 10:16 AM   #5
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disssapointed? that's more than 100 whp you added, was that all bolt ons?
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Old 11-09-2012, 10:17 AM   #6
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disssapointed? that's more than 100 whp you added, was that all bolt ons?
?
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Old 11-09-2012, 10:19 AM   #7
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?
ahh crap, he's talking about his 5.0 isn't he? I thought he was still talking about his 3V
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Old 11-09-2012, 10:24 AM   #8
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Originally Posted by GrabberBlue5.0

ahh crap, he's talking about his 5.0 isn't he? I thought he was still talking about his 3V
Derp...lol
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Old 11-09-2012, 10:25 AM   #9
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haha o well.
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Old 11-09-2012, 10:26 AM   #10
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Lol,yes I was talking about the 5.slow
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Old 11-09-2012, 05:44 PM   #11
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ahh crap, he's talking about his 5.0 isn't he? I thought he was still talking about his 3V
Yes of course the 5.0. Imo if your going to get a muscle car its gotta be a V8!
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Old 11-09-2012, 06:19 PM   #12
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Yes of course the 5.0. Imo if your going to get a muscle car its gotta be a V8!
The 3V is a V8. Maybe I'm misinterpreting your post.
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Old 11-09-2012, 07:19 PM   #13
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I have a GB 2013 5.0 6mt. Im referring to 2011+ GTs
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Old 11-09-2012, 09:10 PM   #14
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I've seen videos of 5.0s with full exhaust systems from headers to mufflers gaining 40+hp
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