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Old 11-23-2010, 05:59 PM   #1
13 ZL1
 
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DT Shorties Installed

I had some DT shorties put on my car. The stock wires on the left side
and the brake module harness on the right side came too close to the header tubes for my comfort.

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I ended up using a cable tie to pull the harness as far away from the headers as possible.

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I replaced the stock plug wires with a set of Accel 9070C wires. These wires are a custom set for an LS3.

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Old 11-23-2010, 07:57 PM   #2
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Looks nice. What are your driving impressions?
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Old 11-23-2010, 08:22 PM   #3
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Looks nice. What are your driving impressions?
Don't know about his but mine are Steve Martin.

Seriously though. Did you install them from the top? I installed a set and was able to drop them in.
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Old 11-23-2010, 08:24 PM   #4
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looks good, hope you like them like I do.
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Old 11-23-2010, 09:02 PM   #5
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Awesome !!! Welcome to the DT Shorty club, you won't regret it ...
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Old 11-23-2010, 09:03 PM   #6
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I have not had a chance to drive it other home from the shop. I just finished tying things up today. It seems to be quiter than with the manifolds. I should be able to get out tomorrow.
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Old 11-23-2010, 09:05 PM   #7
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Seriously though. Did you install them from the top? I installed a set and was able to drop them in.[/QUOTE]

I paid someone to put them on. I put an MGW shifter on a couple of weeks ago and I didn't have the desire work on the car all day.
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Old 11-23-2010, 09:12 PM   #8
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Seriously though. Did you install them from the top? I installed a set and was able to drop them in.
I paid someone to put them on. I put an MGW shifter on a couple of weeks ago and I didn't have the desire work on the car all day.[/QUOTE]


No Problemo. I was just wondering if you followed the instructions. I didn't! and it worked!
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Old 11-24-2010, 06:31 AM   #9
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So how much is the power gain with these alone?
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Old 11-24-2010, 07:04 AM   #10
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how bout sound-wise? should i just put in some hi-flow cats or do both? i'm lookin at $1,000 for a pair of dt shortys installed vs hi-flows.
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Old 11-24-2010, 12:48 PM   #11
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how bout sound-wise? should i just put in some hi-flow cats or do both? i'm lookin at $1,000 for a pair of dt shortys installed vs hi-flows.

They seem a little quiter than the manifolds. If all you are after is sound you might want to try the high flow cats first. I have been told that the Clear Image cats on a stock exhaust sounds pretty good. $1000 for DT shorties installed sounds a bit steep. Check with Ivan at Southwest Speed for the headers and look for a different installer.
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Old 11-24-2010, 12:59 PM   #12
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So how much is the power gain with these alone?

I did not get before and after dyno numbers. I tried to get someone to do that and the install but they did not return my phone call or email. There is a dyno chart on the DT web site.
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Old 11-24-2010, 01:08 PM   #13
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how bout sound-wise? should i just put in some hi-flow cats or do both? i'm lookin at $1,000 for a pair of dt shortys installed vs hi-flows.
1000....dddddduudddudududdudududud....WOW! Really easy to install if you ask me. I did it alone and from the top. "That's what she said" You cat killer you!
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Old 11-24-2010, 01:31 PM   #14
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I have not had a chance to drive it other home from the shop. I just finished tying things up today. It seems to be quiter than with the manifolds. I should be able to get out tomorrow.
What pipes are you running with them ? I have FlowMasters and picked up a lot of sound after putting the DT's on.

This isn't my car, but this is what it sounds like under normal take off. And it get much louder under WOT ...

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Old 11-24-2010, 01:49 PM   #15
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1000....dddddduudddudududdudududud....WOW! Really easy to install if you ask me. I did it alone and from the top. "That's what she said" You cat killer you!

I have a set and I have been debating on installing them myself or having a shop do it. i was told 4 hours for install time. Does this sound right? Also, is the install pretty straight forward or are there any things that should be pointed out?
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Old 11-24-2010, 02:13 PM   #16
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You can do the job yourself, if your handy with tools. You'll need to raise the car to get under it. Make sure your car is cold, the cats will hold heat for a very long time if you run your car first. I would suggest when putting them on, start all the bolts first, including the cats and exhaust before tightening them up. The hardest part is tightening the cats back up, because there is very little room to work. I didn't bother unhooking the battery, because I didn't want to go through resetting everything. After putting a heat cycle through them, re-tighten the bolts again. Also wipe the headers off with a clean rag before starting the car the first time. Make sure you bend or tie back any lines or wires away from headers so they don't melt. Four hours is about right taking your time and doing a good job ...

Good Luck ...
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Old 11-24-2010, 03:01 PM   #17
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I have a set and I have been debating on installing them myself or having a shop do it. i was told 4 hours for install time. Does this sound right? Also, is the install pretty straight forward or are there any things that should be pointed out?
First of all do you have a good torque wrench? If not I know where you can get a good one for free.
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