I am torn: LG or QTP Headers
Melting Slicks
Joined: Sep 2004
Posts: 3,178
Likes: 13
From: N. County/San Diego
My .02
Before stepping up to larger AR Headers to compliment my current blower set-up I ran QTP`S and they made 333rwhp/342rwtq (+22hp/+25tq) out of the box un-tuned with LS6 intake and Vararam, Borla cat-back.
Note the higher tq gain!
The 02 sensors are in near stock locations which seems to allow them to work perfect without tuning (my af was 12.65) and never threw a code the entire time I ran them.
Here in Calif the QTP`s or AR`s may be the better choice since the cats on the LG`s are so far down stream they don`t heat properly and thus have issues passing the strict CA sniffer.
Good luck!
P.S. This is NOT an LG bash, they`re awesome, it`s strictly a CA sniffer related issue.
Before stepping up to larger AR Headers to compliment my current blower set-up I ran QTP`S and they made 333rwhp/342rwtq (+22hp/+25tq) out of the box un-tuned with LS6 intake and Vararam, Borla cat-back.
Note the higher tq gain!
The 02 sensors are in near stock locations which seems to allow them to work perfect without tuning (my af was 12.65) and never threw a code the entire time I ran them.
Here in Calif the QTP`s or AR`s may be the better choice since the cats on the LG`s are so far down stream they don`t heat properly and thus have issues passing the strict CA sniffer.
Good luck!
P.S. This is NOT an LG bash, they`re awesome, it`s strictly a CA sniffer related issue.
Last edited by Rag-Top Rick; Dec 12, 2007 at 03:24 PM.
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
Why do you want the cut outs?
I run LTs, High flow cats, X-pipe and straight pipes, no mufflers. Granted I am not in CALIF, but at slow accelrations or at cruze the sound is not bad at all.
At WOT, my wife can hear me shift a mile away
I run LTs, High flow cats, X-pipe and straight pipes, no mufflers. Granted I am not in CALIF, but at slow accelrations or at cruze the sound is not bad at all.
At WOT, my wife can hear me shift a mile away
Thread Starter
Le Mans Master
Joined: Jan 2006
Posts: 9,061
Likes: 668
From: Norcal
I want them because I have never had them and think it would be cool. I might just run the Stock exhaust with my tips and open it up when I have the chance.
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Got to admit they sounded good when I heard them, but now with heads and cam when I get on it you can hear the car a long way off so any LEO's in the bushes are in instant search mode. 
Le Mans Master
Joined: Feb 2006
Posts: 5,488
Likes: 4
From: USA
I can't wait to get my QTP's on with the X-pipe
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Melting Slicks
Joined: Sep 2004
Posts: 3,178
Likes: 13
From: N. County/San Diego
Just remember, just because many haven`t heard of them doesn`t meant they don`t work, they do! I must admit, I thought my car sounded better before with the QTP`s, kind of exotic, they just didn`t make a larger "blower friendly" set-up!
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
Racer
Joined: Oct 2003
Posts: 377
Likes: 2
From: Palm Beach Gardens FL
I have QTP headers, X pipe and Random Tech cats through TI’s. Sound is just right. I put down just over 400 HP at the wheels and nice flat torque curve. I had my QTP’s coated and never looked back. One of the reasons I chose them is they fit nice and tight in the tunnel without loosing ground clearance
Thread Starter
Le Mans Master
Joined: Jan 2006
Posts: 9,061
Likes: 668
From: Norcal
I am going to pick the QTP's up today. I was wondering if I could have these universal 3" cats welded to the x pipe? I wonder if they fit with the cutouts.
http://cgi.ebay.com/ebaymotors/PYPES...QQcmdZViewItem
http://cgi.ebay.com/ebaymotors/PYPES...QQcmdZViewItem
