Thread: R&D Manifold X-tender Help
11-12-2009, 01:23 AM #1
R&D Manifold X-tender Help
I have an R&D manifold X-tender with O2 bung. I am having some trouble mounting this to the X waterbox with the V-band clamp. It appears that the waterbox flange + X-tender are too wide for the Stock v-band calmp. Anyone have this problem? Help appreciated. Thanks.
11-12-2009, 03:07 AM #2
11-12-2009, 05:22 AM #3
Yes I did. I actually have the waterbox out and tried flipping over the X-tender. It only goes on one way as there is a concave and convex part which fits in the exhaust manifold and waterbox.
11-12-2009, 05:42 AM #4
You need the V band clamp that goes on a J pipe. I had the same problem. The flange on the extender is like the j pipe and is not as wide as the straight pipe exhaust.
j pipe v band will fix your problem.
11-12-2009, 05:50 AM #5
Will have to double check that. I tried both clamps and none seem to fit. I actually put both clamps next to each other and they had on the same numbers stamped on them as well as looked exactly the same. I thought they were the same part, will look it up in the original parts finder.
11-12-2009, 05:55 AM #6
Part numbers are actually different, so will give it a try again with the other clamp. Will keep you posted. Thanks.
11-12-2009, 01:33 PM #7
I ran into this.
If using the new exhaust:
You need the V-band clamp for the older J-pipe setup, on the manifold side, and the 08 V-band clamp for the X-pipe side.
If you are using the J-pipe setup, you need two of the older V-band clamps.
11-12-2009, 11:29 PM #8
I have the one clamp here. If recall right they both have K-72, this one has B14, 50429-1.
anyone got both sets of clamps within eyeshot to verify.
11-14-2009, 07:27 PM #9
So i got both clamps and the numbers on them are identical. I know that the one v-band clamp is from my 2007 rxt with j pipe. The other came with the x-water box, head pipe assembly, and v-band clamp. Unless the v-band clamp was not the original one for the x-waterbox I can't figure out why the X-tender would not fit. I tried both. Wonder if I possilbly have to machine down the larger flange on the x-tender pipe.
Any ideas folks.
11-14-2009, 08:18 PM #10
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