04-16-2009, 01:04 PM #1
HEADS UP ON THE GPR "U" pipe section!!!!
Ok,i had 2 U sections of pipe,both look the same but they arent! The mounting flange on the front "U" pipe section that goes on the front muffler stay had a gap when the whole pipe was bolted on to the exhaust manifold. I tried different pipe mount collers and everything. I have never had or heard of such thing in my years of wrenching on these.After an hour of trying to figure out what was going on,i pulled the U pipe and compared it to the other one i had. Pics below will show the difference in mounts! If you mount the U pipe to the exhaust manifold then try to bolt it to the muffler stay and you have clearance there,it will put major strain on the pipe and could crack the bracket.I have looked in the 'original parts finder' and cant find out why there is a difference. All the plastic,aluminum collers appear to be the same.Anyone else notice this?
I ended up putting the other pipe in without a problem.Weird because 03' and up are silver pipes..
04-16-2009, 01:07 PM #2
Possibly different from different years of 13r's? I know they changed the pipes around during that time. The changes could be small enough not to be seen.
Do a parts check from 12, 13r pv and 13r npv.
04-16-2009, 01:08 PM #3
04-16-2009, 01:25 PM #4
I just quickly measured (7) U pipes... (3) black pipes and (4) silver pipes. They all measured .996 to .987... one went .974. The .974 looks like its off an 03
04-16-2009, 02:20 PM #5
black pipes are 1200's that one looks like it was repaired. maybe broke at one point.
04-16-2009, 02:26 PM #6
are the stingers all the same?
04-16-2009, 03:12 PM #7
66v-14721-a0-94 muffler 2 $747.53 $747.53
60t-14721-a0-94 muffler 2 $636.58 $636.58
66v-14721-01-8p muffler 2 $952.72 $952.72
3 diff part number. 03, 02, 06.
I know there was some type of height change.
04-16-2009, 08:10 PM #8
04-16-2009, 08:13 PM #9
I use shims to get my pipes aligned... take an old cyl base gasket and cut the corners off
04-16-2009, 08:18 PM #10
The 2004 XLT 1200 has a silver pipe. Not all 1200 pipes were black.
I also remember seeing a post a while back about the U-pipe differences. I think it was more on the PV vs. NON-PV. I also think there some opportunities to test in that area.
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