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Thermal R&D exhaust keeps coming loose

CSM

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Cleveland, OH, USA
#81
Watching this thread closely. Just installed a thermal exhaust and love it but some of the issues noted here worry me.

I torqued my 2 bolt couplers to 45 ft-lbs at each bolt. No issues yet, knock on wood.
 


Clint Beastwood

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#83
Since this was brought back up, exhaust hasn't moved since the vband but I do have an exhaust leak now. Mainly noticeable on cold starts and it sounds like an old vw beetle on decel. Once it's warm, no issues. I'm gonna get under and check the vband, but I'm about ready to buy a cobb exhaust for the bolt on flange connections.
That can happen with male/female vbands that have to socket in, one shop I had do work for me fails to seat one inside the other every.single.time, and I wind up with that tch tch tch sound on decel. Loosen the clamp, seat the ends, clamp it back up and its fine.
 


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Location
South Houston, TX, USA
#84
I’m getting close to buying an exhaust and wondering if folks are still having issues with the clamps coming loose?
Has anyone with previous issues solved it other than tightening more?
I’d like to pull the trigger if any BF sale pops up this month, but concerned with this issue.
 


Dpro

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Los Feliz (neighborhood in LA)
#85
I’m getting close to buying an exhaust and wondering if folks are still having issues with the clamps coming loose?
Has anyone with previous issues solved it other than tightening more?
I’d like to pull the trigger if any BF sale pops up this month, but concerned with this issue.
I have never had a problem with mine coming loose and I have close to 8k miles since it was installed. It really is a matter of how tight you torque it I think.
 


OP
DangerMouse

DangerMouse

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Rockford
Thread Starter #86
I’m getting close to buying an exhaust and wondering if folks are still having issues with the clamps coming loose?
Has anyone with previous issues solved it other than tightening more?
I’d like to pull the trigger if any BF sale pops up this month, but concerned with this issue.

I ended up having a vband installed on the front downpipe to resonator connection and the back clamps tack welded. If I was to do it again i would just tack weld all the clamps. Cheap and easy. No matter how tight I got them the pipes would end up sliding out eventually. It's worth it though, best sounding exhaust in my opinion and no drone.
 


Messages
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Location
South Houston, TX, USA
#87
I ended up having a vband installed on the front downpipe to resonator connection and the back clamps tack welded. If I was to do it again i would just tack weld all the clamps. Cheap and easy. No matter how tight I got them the pipes would end up sliding out eventually. It's worth it though, best sounding exhaust in my opinion and no drone.
Make sure I am following completely. Exhaust pipe is put end to end with the clamp over the connection and tightened down. The issue is no matter how much the bolts are tightened the clamps seem to come loose. Question is where exactly are you tack welding the pipe to clamp? On bolts, on seam, or at pipe to clamp edge tacking pipe to clamp?
if you have any pics that would be awesome. Thanks!
 


OP
DangerMouse

DangerMouse

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Thread Starter #89
Make sure I am following completely. Exhaust pipe is put end to end with the clamp over the connection and tightened down. The issue is no matter how much the bolts are tightened the clamps seem to come loose. Question is where exactly are you tack welding the pipe to clamp? On bolts, on seam, or at pipe to clamp edge tacking pipe to clamp?
if you have any pics that would be awesome. Thanks!
The pipes don't necessarily butt together. Weld the clamp on the edge to the exhaust pipe.

Sorry I don't have pics.
 


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