I would like to hear yours vs. the aps site

 

yes, I would love to hear some exhaust clips of the APS dual. I would be nice to hear it do some drive by's, and driving at different throttle loads in and out of the car!
Jon

 

I am not sure about drive by sound clips but I can probably do a clip of it starting and revving. I will put it up this weekend or earlier as long as it doesn't rain.

 

Are you sure its not welded on the inside of the flange? I've seen several companies do this. The do a couple tack welds on the outside to mount it, then run the full bead on the inside.

 

That would make sense if all the other flanges were the same, but it was only one.

 

I think if they used an X-pipe right after bolting to the cats (or to me the less-preferrable H-pipe) and separate mufflers you wouldn't lose the low end torque as much. If in fact you actually are, I don't think you confirmed that? Anyway, "sharing a muffler" on a TD system is less effective IMO. Balance the exhaust load RIGHT BEHIND the cats and keep it true dual (2 mufflers) after that for the best gains and to maintain low end. $.02

 

Just saw a dyno on this exhaust where a Z gained 11 HP.

 

Sorry I was just alerted to this thread and I assume that weld that you state is missing is on the rear muffler, is that correct?

All APS exhaust components are welded both on the inside and the outside of the pipe/tube, in other words double seam welded, not many exhaust companies go to this amount of trouble.

There are some cases (very rare) where the TIG tip and welder cannot access some components to double seam weld (just not sufficient space available) though the internals of the joint are fully TIG welded on every tube and or muffler where humanly possible.

Would you please confirm that it's a flange on the muffler that's not welded externally?

Just to reiterate, every exhaust joint/flange on APS exhaust systems are TIG welded both externally and internally where humanly possible.

Thanks

Peter

 

Hi Guys,

It's George from APS Engineering here. Peter asked me about the welding on the APS True Dual Exhaust System and showed me the pictures posted on this thread.

From the pictures, I can see that the flange weld is that on the very short inlet to the muffler. The process of producing this part of the muffler assembly is as shown below:







Peter was correct in stating that it is not possible to seam weld the entire exterior circumference at this point however this is of little concern because the tube is fully seam welded at the inside of the flange. The external welds are simply there for positioning of the flange once in the fixture jig.

Structurally, this component is not placed under any significant load to require external welding due to it's very short length and the fact that the muffler etc is well supported at other locations.

I hope that this helps explain the external positioning tack welds and that we value your feedback at all times.

Regards
George
APS Engineering

 

If that's the way it's suppose to be it's fine. I didn't start this thread as an unfavorable view of the product as I did quite a bit of research before buying this product. I had my shop weld it up anyway so it's of no concern. I am happy to see that you took the time to post here though which does reflect well on you standing behind your product.

Yes it's the external portion that wasn't welded. The inside was welded as was depicted.

 

Thanks for your reply and I hope that you're very happy with the APS TD cat back exhaust system, we do try to build the highest quality exhaust for sensible money.


Thanks for clarifing that, if that's the case there's no need to weld the outside of the pipe as the internal weld is more than sufficient, that said if you've had the external tube welded to the flange that fine also.

Peter