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What Dowpipe Do I Use??

  #1  
Old 05-12-2012, 12:01 PM
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Red face What Dowpipe Do I Use??

So i just ordered speed daddy headers and i want a downpipe to add to it. What size downpipe would i use and would any downpipe work? May sound like a silly question to some but im still on the learning side of modding! Any advice helps thanks!
 
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Old 05-12-2012, 12:33 PM
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It's been a while since I looked at a set, but IIRC the downpipe is an integral part of the headers so you won't need to purchase one.
 
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Old 05-12-2012, 03:11 PM
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So if i buy headers i wouldn't need a downpipe?
 
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Old 05-12-2012, 06:16 PM
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Yes, with headers you don't need a downpipe.
 
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Old 05-12-2012, 06:50 PM
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Thanks!
 
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Old 05-12-2012, 09:32 PM
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No need for downpipe with Speed Daddy's. They have it integrated with the headers. Keep in mind that with the Speed Daddy's there is no cat. I ordered the EGR block off plates and deleted the EGR at the same time. You will need an o2 extension as well which ZZP sells.

When I installed Speed Daddys I picked up two 3" band clamps and two 2.5" band clamps. I recommend this because the clamps it comes with tend to crush the pipe and make it almost impossible to remove/adjust. Band clamps and lots of RTV should be used for best results IMO
 
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Old 05-12-2012, 09:42 PM
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Why did you have to use RTV, where did you have the leaks? at each connection?
 
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Old 05-12-2012, 09:50 PM
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Originally Posted by Jomao_o View Post
Why did you have to use RTV, where did you have the leaks? at each connection?
RTV is a must for mating surfaces of exhaust, please tell me you used it? Lol

I used RTV on both sides of crossover, and a lot on the mating surface for the v-clamp, also on the downpipe section where that connects. I also used lots of RTV all around the band clamps and it is %100 percent leak free to this day. The only spot I once had a leak was from downpipe to catback and that's because I didn't use the speed daddy gasket (known to blow out) but I RTV'd the crap out of everything.

Here's image of band clamps in use lol. They cover a lot and with RTV in there I guarantee you won't have leaks
 
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Old 05-12-2012, 10:00 PM
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Unfortunately, I did not.
Sent ya a PM.
 
  #10  
Old 05-12-2012, 10:22 PM
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how are you all passing emissions? If i fart during the test my car fails.
 

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