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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 05-11-2010, 12:36 PM   #1
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Doug Thorley shorty headers install!

I picked up my car this morning from my mechanic after having the Doug Thorley shorty headers installed on the car. Wow, what a good looking set of headers! What a difference in the looks alone. Got a little more response on the throttle too. I had him take pics of the process and you can see how rusty and ugly the old exhaust headers were. The new headers look awesome and are polished and ceramic-coated, so they'll never rust. There's a pic of one of his mechanics with the devilish grin before putting on another rack of headers! Not alot of difference in sound yet, since I still have the stock cats on. But I'm either thinking hi-flow cats, or a cat-delete altogether. I'll keep the cats if I ever need to put them back on for any reason. I can get it inspected no problem.

Question- if I do a cat-delete and do something like an X pipe, do I need to get the O2 eliminators? anyone have experience doing this? I want to get that powerful sound I'm looking for and let these headers breathe.

After I get the cat work done, it's off to the dyno and to get an HP tune to where I hope to put 425 hp or more to the rear wheels.
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Old 05-11-2010, 12:47 PM   #2
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great job.they look awesome.
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Old 05-11-2010, 12:49 PM   #3
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Very nice! Any numbers?? Did you dyno before and after??
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Old 05-11-2010, 12:50 PM   #4
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Looks awesome, I will be doing the same thing on my car as soon as DTH finishes the next batch.
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Old 05-11-2010, 12:50 PM   #5
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Beautiful. How much did you pay for install and parts?
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Old 05-11-2010, 12:56 PM   #6
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Originally Posted by camarowa View Post
Looks awesome, I will be doing the same thing on my car as soon as DTH finishes the next batch.

Man I got lucky. I had called a couple weeks ago and they said they were on back order for 4-6 weeks, but that he had just gotten an extra order in! He said it was my lucky day and they were mine! I agreed I was pretty darn lucky. You'll like them for sure.
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5th Gen Camaros of the Carolinas SIM, 2SS/RS LS3 5/7/11 453.9 RWHP 427.5 RWTQ
VMS Stage 2.5 Comp Cams kit, Cold Air Inductions intake, ADM race scoop, DT 1 3/4" headers, Solo cats, 3" Magnaflow catback, Pypes cutouts, HP tune, H&R SuperSport springs, Eibach sways/spacers, TexasSpeed UD pulley, LSR tensioner pulley, Barton shifter, skip shift eliminator, powder-coated calipers, R1 concept rotors, StopTech pads, Granatelli wires, Lloyds mats, tint, AAC afterburner taillamps, AAC scanner/sidemarkers, SRP pedals, custom engine cover, black bowties, Ridergraphix hood spears....
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Old 05-11-2010, 12:59 PM   #7
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Quote:
Originally Posted by wirebender View Post
Very nice! Any numbers?? Did you dyno before and after??
thanks! dynoed before as in my signature last week at 384 rwhp, 374 rwtq. No numbers yet, but I'm definitely going to get it dynoed and tuned once the cats are replaced with hiflows or deleted
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5th Gen Camaros of the Carolinas SIM, 2SS/RS LS3 5/7/11 453.9 RWHP 427.5 RWTQ
VMS Stage 2.5 Comp Cams kit, Cold Air Inductions intake, ADM race scoop, DT 1 3/4" headers, Solo cats, 3" Magnaflow catback, Pypes cutouts, HP tune, H&R SuperSport springs, Eibach sways/spacers, TexasSpeed UD pulley, LSR tensioner pulley, Barton shifter, skip shift eliminator, powder-coated calipers, R1 concept rotors, StopTech pads, Granatelli wires, Lloyds mats, tint, AAC afterburner taillamps, AAC scanner/sidemarkers, SRP pedals, custom engine cover, black bowties, Ridergraphix hood spears....
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Old 05-11-2010, 01:02 PM   #8
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OMG I'm so jealous Topgun! Those look amazing and HOT!!!

I love that tattoo....you were holding out on us at the fest.
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Old 05-11-2010, 01:03 PM   #9
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Beautiful. How much did you pay for install and parts?
Thanks alot, purchased them from Doug Thorley for $566 shipped. Got them installed for $300, so not too bad all for under $900.
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5th Gen Camaros of the Carolinas SIM, 2SS/RS LS3 5/7/11 453.9 RWHP 427.5 RWTQ
VMS Stage 2.5 Comp Cams kit, Cold Air Inductions intake, ADM race scoop, DT 1 3/4" headers, Solo cats, 3" Magnaflow catback, Pypes cutouts, HP tune, H&R SuperSport springs, Eibach sways/spacers, TexasSpeed UD pulley, LSR tensioner pulley, Barton shifter, skip shift eliminator, powder-coated calipers, R1 concept rotors, StopTech pads, Granatelli wires, Lloyds mats, tint, AAC afterburner taillamps, AAC scanner/sidemarkers, SRP pedals, custom engine cover, black bowties, Ridergraphix hood spears....
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Old 05-11-2010, 01:05 PM   #10
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OMG I'm so jealous Topgun! Those look amazing and HOT!!!

I love that tattoo....you were holding out on us at the fest.
thanks Abygale haha, yeah he does look like me, although that's not me. That's one of the mechanics! funny thing is, I still do have a tatoo, but it's on the opposite arm.
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5th Gen Camaros of the Carolinas SIM, 2SS/RS LS3 5/7/11 453.9 RWHP 427.5 RWTQ
VMS Stage 2.5 Comp Cams kit, Cold Air Inductions intake, ADM race scoop, DT 1 3/4" headers, Solo cats, 3" Magnaflow catback, Pypes cutouts, HP tune, H&R SuperSport springs, Eibach sways/spacers, TexasSpeed UD pulley, LSR tensioner pulley, Barton shifter, skip shift eliminator, powder-coated calipers, R1 concept rotors, StopTech pads, Granatelli wires, Lloyds mats, tint, AAC afterburner taillamps, AAC scanner/sidemarkers, SRP pedals, custom engine cover, black bowties, Ridergraphix hood spears....
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Old 05-11-2010, 01:06 PM   #11
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Quote:
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Thanks alot, purchased them from Doug Thorley for $566 shipped. Got them installed for $300, so not too bad all for under $900.
Wow, looks awesome man.
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Old 05-11-2010, 01:10 PM   #12
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thanks Abygale haha, yeah he does look like me, although that's not me. That's one of the mechanics! funny thing is, I still do have a tatoo, but it's on the opposite arm.
Oh my gosh, yes he looks a lot like you, but I like your tattoo better! Well at least I got part of that right.....you WERE holding out on us at the fest

We need some pictures of your handsome face in this thread: http://www.camaro5.com/forums/showthread.php?t=81732

Please
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Old 05-11-2010, 01:16 PM   #13
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I put the DT shorties on my 2SS...LOVE EM!!! no dyno numbers, my butt dyno can feel the difference, sounds good too!!! enjoy!!
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Old 05-11-2010, 01:40 PM   #14
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I put the DT shorties on my 2SS...LOVE EM!!! no dyno numbers, my butt dyno can feel the difference, sounds good too!!! enjoy!!

LOL! NICE!
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5th Gen Camaros of the Carolinas SIM, 2SS/RS LS3 5/7/11 453.9 RWHP 427.5 RWTQ
VMS Stage 2.5 Comp Cams kit, Cold Air Inductions intake, ADM race scoop, DT 1 3/4" headers, Solo cats, 3" Magnaflow catback, Pypes cutouts, HP tune, H&R SuperSport springs, Eibach sways/spacers, TexasSpeed UD pulley, LSR tensioner pulley, Barton shifter, skip shift eliminator, powder-coated calipers, R1 concept rotors, StopTech pads, Granatelli wires, Lloyds mats, tint, AAC afterburner taillamps, AAC scanner/sidemarkers, SRP pedals, custom engine cover, black bowties, Ridergraphix hood spears....
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Old 05-11-2010, 02:51 PM   #15
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Dude...SWEET! I will be jealous until I send and get my car back from Livernois for the full treatment!
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Old 05-11-2010, 03:20 PM   #16
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Woot! Apparently my DT headers arrived today!
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Old 05-11-2010, 03:23 PM   #17
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topgun i will turn off the rear o2's when it gets tuned. dont worrie about them.
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Old 05-11-2010, 03:27 PM   #18
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Thanks for the pics!
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Old 05-11-2010, 03:43 PM   #19
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nice
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Old 05-11-2010, 05:42 PM   #20
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Dude...SWEET! I will be jealous until I send and get my car back from Livernois for the full treatment!
Then it will be my turn to be really jealous!!
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5th Gen Camaros of the Carolinas SIM, 2SS/RS LS3 5/7/11 453.9 RWHP 427.5 RWTQ
VMS Stage 2.5 Comp Cams kit, Cold Air Inductions intake, ADM race scoop, DT 1 3/4" headers, Solo cats, 3" Magnaflow catback, Pypes cutouts, HP tune, H&R SuperSport springs, Eibach sways/spacers, TexasSpeed UD pulley, LSR tensioner pulley, Barton shifter, skip shift eliminator, powder-coated calipers, R1 concept rotors, StopTech pads, Granatelli wires, Lloyds mats, tint, AAC afterburner taillamps, AAC scanner/sidemarkers, SRP pedals, custom engine cover, black bowties, Ridergraphix hood spears....
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Old 05-11-2010, 05:45 PM   #21
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topgun i will turn off the rear o2's when it gets tuned. dont worrie about them.

Thanks! I've decided I'm going to go with hi-flow cats, no cat-delete. Makes things easier and less hassle. So leaving the O2 sensors as-is. But yeah, if it would throw a code with the hi-flows, we'll turn it off.
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5th Gen Camaros of the Carolinas SIM, 2SS/RS LS3 5/7/11 453.9 RWHP 427.5 RWTQ
VMS Stage 2.5 Comp Cams kit, Cold Air Inductions intake, ADM race scoop, DT 1 3/4" headers, Solo cats, 3" Magnaflow catback, Pypes cutouts, HP tune, H&R SuperSport springs, Eibach sways/spacers, TexasSpeed UD pulley, LSR tensioner pulley, Barton shifter, skip shift eliminator, powder-coated calipers, R1 concept rotors, StopTech pads, Granatelli wires, Lloyds mats, tint, AAC afterburner taillamps, AAC scanner/sidemarkers, SRP pedals, custom engine cover, black bowties, Ridergraphix hood spears....
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Old 05-11-2010, 08:39 PM   #22
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Thanks alot, purchased them from Doug Thorley for $566 shipped. Got them installed for $300, so not too bad all for under $900.
for 8hp they are sweet looking though
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Old 05-11-2010, 08:47 PM   #23
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Yep, that was pretty much what I was going for. they look real sweet, not rust buckets like the old stock ones. going for the looks and the sound, with a tune and hi-flow cats should get me substantially more than 8 hp

btw, your car is one of my all time favorites!
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5th Gen Camaros of the Carolinas SIM, 2SS/RS LS3 5/7/11 453.9 RWHP 427.5 RWTQ
VMS Stage 2.5 Comp Cams kit, Cold Air Inductions intake, ADM race scoop, DT 1 3/4" headers, Solo cats, 3" Magnaflow catback, Pypes cutouts, HP tune, H&R SuperSport springs, Eibach sways/spacers, TexasSpeed UD pulley, LSR tensioner pulley, Barton shifter, skip shift eliminator, powder-coated calipers, R1 concept rotors, StopTech pads, Granatelli wires, Lloyds mats, tint, AAC afterburner taillamps, AAC scanner/sidemarkers, SRP pedals, custom engine cover, black bowties, Ridergraphix hood spears....
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Old 05-12-2010, 12:35 AM   #24
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Congrats!! They look spectacular...like Terri Hatcher said on Seinfeld!

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Woot! Apparently my DT headers arrived today!
Hell to the yes.

Hope you get to post up some pics of em soon!!!

Thanks again and hope you enjoy them!
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Old 05-12-2010, 09:08 AM   #25
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Looks nice, man. With shorties, where are you getting your high flow cats? What is the reason they will throw a code with shorties and high flow cats? Before you toss your old manifolds, let me know - you know me and my box of scraps .
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