Ironman Posted January 4, 2011 Share Posted January 4, 2011 Hey Guys, I am going to order my exhaust stuff today. I am wondering what is the collector flange size (Right Terminology?) for the header. (2.5 or 3 inches) My Headers are in the mail right now. collector flange size- the part of the header that bolts to the rest of the exhaust system. While I am already here, Which would be a better setup? Headers, xpipe, Borla Xr1's, dumped with a turn down before the diff Or Headers, Borla Dual in Dual out Turbo XL, with turndowns dumped before the diff? I am aiming for a quieter idle. Thanks Quote Link to comment Share on other sites More sharing options...
Ironman Posted January 5, 2011 Author Share Posted January 5, 2011 If anybody is curious it is 2.5 Inches Quote Link to comment Share on other sites More sharing options...
Aero Z Posted January 5, 2011 Share Posted January 5, 2011 Can you post a picture of your headers. installed or uninstalled. I haven't been able to find one and JCI didn't have one to email. Trying to decide on which ones to get. Thanks. Hey Guys, I am going to order my exhaust stuff today. I am wondering what is the collector flange size (Right Terminology?) for the header. (2.5 or 3 inches) My Headers are in the mail right now. collector flange size- the part of the header that bolts to the rest of the exhaust system. While I am already here, Which would be a better setup? Headers, xpipe, Borla Xr1's, dumped with a turn down before the diff Or Headers, Borla Dual in Dual out Turbo XL, with turndowns dumped before the diff? I am aiming for a quieter idle. Thanks Quote Link to comment Share on other sites More sharing options...
Pyro Posted January 5, 2011 Share Posted January 5, 2011 if you want a quieter exhaust then don't turn the pipes down before the diff. Instead of dumping, go into a Y pipe with a 3 to 3.5" inch output, use some mandrel bent pipe to get around the diff then into another muffler (in the stock location). Quote Link to comment Share on other sites More sharing options...
SUNNY Z Posted January 5, 2011 Share Posted January 5, 2011 Yes, any time you dump the exhaust under the car, there WILL be resonation, and it will be louder than out the back. Quote Link to comment Share on other sites More sharing options...
Ironman Posted January 5, 2011 Author Share Posted January 5, 2011 Actually the headers are on the way, I emailed John and he told me. When I receive the package I will take some pictures and post in here. I wasn't looking for a quiet exhaust, but a quieter exhaust The resonance isn't going to bother me too much. When I hit stage 2 of my build then I will redo the exhausts with duals all the way out the back. Fuel Tank Interference right now is stopping me from duals all the way. Quote Link to comment Share on other sites More sharing options...
janaka Posted January 7, 2011 Share Posted January 7, 2011 Then it must be the JTR LS1 headers that are 3" collectors as I know the set I have the collectors are 3" and I took them down to 2.5" off the collectors and where they merge to one pipe I went 3" all the way back... Its kinda loud without a resonator and only a bullet style muffler, but now seems quiet since I have a cutout right after my Y Quote Link to comment Share on other sites More sharing options...
m1noel Posted January 8, 2011 Share Posted January 8, 2011 Yeah, my JTR's are 3". Quote Link to comment Share on other sites More sharing options...
Ironman Posted January 9, 2011 Author Share Posted January 9, 2011 The package came in about 1.5 days ago. I will upload pictures once I update my thread. Which will be tomorrow. Quote Link to comment Share on other sites More sharing options...
Ironman Posted January 10, 2011 Author Share Posted January 10, 2011 As Promised Quote Link to comment Share on other sites More sharing options...
janaka Posted January 10, 2011 Share Posted January 10, 2011 interesting. I've never seen those headers before... different how they extend so long after the 4 merge into 1; thats different than the JTR 1 7/8" primary into 3" collectors. Kinda cool but no flanges? or did you cut them off? Quote Link to comment Share on other sites More sharing options...
Ironman Posted January 10, 2011 Author Share Posted January 10, 2011 They were never there, I am just going to put exhaust clamps on them. Quote Link to comment Share on other sites More sharing options...
SUNNY Z Posted January 10, 2011 Share Posted January 10, 2011 so how much did those set you back? Also, they're just painted, correct? Quote Link to comment Share on other sites More sharing options...
Ironman Posted January 11, 2011 Author Share Posted January 11, 2011 (edited) What it said on the website- $330 Non coated- Painted black from JCI Edited January 11, 2011 by Ironman Quote Link to comment Share on other sites More sharing options...
ukcats07 Posted June 6, 2015 Share Posted June 6, 2015 What it said on the website- $330 Non coated- Painted black from JCI Any pics with these mounted? Trying to decide between JTR and these for my build. thanks Quote Link to comment Share on other sites More sharing options...
CableSrv Posted June 9, 2015 Share Posted June 9, 2015 JTR headers ARE a 3" collector. The added end they give you drops the 3" to a 2.5" Quote Link to comment Share on other sites More sharing options...
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