Before and After Dyno
Thread Starter
Heel & Toe
Joined: Jun 2013
Posts: 21
Likes: 0
From: Leola PA
Before and After Dyno
Had the C5 put on the Dyno before and after the install of a few bolt ons.
It's an automatic with just about 142,000 miles on it.
2002 Z06 Air Box with K&N Filter
LS6 Intake Manifold
Corsa Xtreme Cat Back with XO Pipe
I am fairly pleased with the results, the car feels smoother and more consistent, has much better pull and of course it sounds fantastic!
It's an automatic with just about 142,000 miles on it.
2002 Z06 Air Box with K&N Filter
LS6 Intake Manifold
Corsa Xtreme Cat Back with XO Pipe
I am fairly pleased with the results, the car feels smoother and more consistent, has much better pull and of course it sounds fantastic!
Advanced
Joined: Jun 2010
Posts: 96
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From: Rochester New York
Thread Starter
Heel & Toe
Joined: Jun 2013
Posts: 21
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From: Leola PA
I was wondering that myself...
Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
That's really good to pick up 30rwhp with basically just a intake change. the filter change is usually 5-7whp and cat back around 5-8whp. I've seen 8-10rwhp from the ZO6 intake, but usually when the car had other mods to need the extra flow.
However, maybe there was an issue with the initial run because 287rwhp is on the low side for stock
However, maybe there was an issue with the initial run because 287rwhp is on the low side for stock
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Instructor
Joined: Mar 2011
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Did you put the headers on after the exhaust? I have the Corsa Xtremes and IMO it's still not close to loud enough, will the headers add volume or just change the type of sound?
Drifting
Joined: Apr 2009
Posts: 1,898
Likes: 9
From: Morrisville PA
Headers are not "budget". The only budget headers with cats are the xspower ones and they are not available. Otherwise, have fun spending $1400-$1700.
The best budget exhaust that will give you 20+ rwhp is putting on C6Z exhaust manifolds.
Here is an excellent write up. They will make close to what headers give you. Very well engineered manifold from GM. You can find them for $300-$400 manifolds, cats, and the entire midpipe. All you'd need to do is adapt the 3" z06 midpipe to your 2.5" exhaust by cutting, putting an adapter on, and splicing the end of your stock midpipe into the 3". It's easy. Besides that, there are just a couple other tight areas you may or may not have to address, but the manifold will bolt directly to your heads. You can splice in air tube fittings, but I just left mine off.
http://forums.corvetteforum.com/c5-t...sion-pics.html
I actually went from catless headers to this setup and I like it better. I will keep this setup for when I go FI too. We put them on my Dad's car too and I tuned it. HUGE sotp improvement. Went from dead hooking 1st to going completely sideways punching it. Very impressive for a couple hundred bucks.
The best budget exhaust that will give you 20+ rwhp is putting on C6Z exhaust manifolds.
Here is an excellent write up. They will make close to what headers give you. Very well engineered manifold from GM. You can find them for $300-$400 manifolds, cats, and the entire midpipe. All you'd need to do is adapt the 3" z06 midpipe to your 2.5" exhaust by cutting, putting an adapter on, and splicing the end of your stock midpipe into the 3". It's easy. Besides that, there are just a couple other tight areas you may or may not have to address, but the manifold will bolt directly to your heads. You can splice in air tube fittings, but I just left mine off.
http://forums.corvetteforum.com/c5-t...sion-pics.html
I actually went from catless headers to this setup and I like it better. I will keep this setup for when I go FI too. We put them on my Dad's car too and I tuned it. HUGE sotp improvement. Went from dead hooking 1st to going completely sideways punching it. Very impressive for a couple hundred bucks.
Last edited by mchicia1; Jul 25, 2013 at 05:00 PM.
Thread Starter
Heel & Toe
Joined: Jun 2013
Posts: 21
Likes: 0
From: Leola PA
I did not do headers, just the mods listed in my first post. Car has 145,000 miles so its no spring chicken.
I actually think its running rich. I threw some codes the other day and I believe it was running rich. I will be getting it retuned soon to hopefully correct those issues. The shop I go to may not have done the best tune...
I actually think its running rich. I threw some codes the other day and I believe it was running rich. I will be getting it retuned soon to hopefully correct those issues. The shop I go to may not have done the best tune...