Joined
·
1,492 Posts
Preface: I have not had any downpipes other than stock.
I went to get the DP installed today. It took nearly two hours because the installer had never worked on an R before, but they were very interested and they also use the 19T turbo regularly in performance applications. These were the sticking points from my experience:
There is much less flex in the PhuzDP than the Stock one. Seriously, the turbo side on the stock pipe will flop around if you hold it upright. I wanted to put that image in your head, and also let you know that there can be some more vibration in the car, but that could just be the power. Regardless, this looks like it would be the case for all of the aftermarket downpipes, based solely on the length of the flex pipe section.
If there is any shortcoming in the PhuzDP, it is that there is no concentric seat on the turbo-side flange for the turbo collar to sit in. I will let Matt explain this in more detail if he likes, but this makes properly mating the turbo and the DP a little more difficult, as it initially had an exhaust leak when they installed it.
[I was able to get Matt on the phone and he discussed with the shop owner. The issue was resolved and there was no leak when they retorqued the bolts].
Now the interesting stuff:
It is definitely louder on initial acceleration, but it is about the same decibel level when the turbo is spooled up.
The turbo spools up much sooner (obviously), and also smoother. I have had the ipd TCV for a few months, if anyone is wondering. As I have a GT, I never really heard the turbo spool as distinctly as I do now, simply because the engine is quieter than it was before.
Flooring it on the highway reflects the above. There is considerably less turbo lag, as you would expect. It may even be better for the car to not get that "kick" of boost.
Does anyone know how heavy the stock DP is? Matt's is 15 lbs and definitely lighter.
The instantaneous fuel mileage when coasting in a GT increases much faster. I am feeling less engine drag. This makes sense.
The difference in low end torque was so distinct, and my sphincter was confused and ill prepared for the shock delivered to my butt dyno. Seriously, my rear iris closed just a little.
In the end, I am happier, and my car sounds much angrier. The shop I used is also interested in doing exhausts and possibly manifolds as time goes on. If anyone has something they would like to see, let me know, as I now unofficially drive the "test car" and they are very flexible.
I went to get the DP installed today. It took nearly two hours because the installer had never worked on an R before, but they were very interested and they also use the 19T turbo regularly in performance applications. These were the sticking points from my experience:
There is much less flex in the PhuzDP than the Stock one. Seriously, the turbo side on the stock pipe will flop around if you hold it upright. I wanted to put that image in your head, and also let you know that there can be some more vibration in the car, but that could just be the power. Regardless, this looks like it would be the case for all of the aftermarket downpipes, based solely on the length of the flex pipe section.
If there is any shortcoming in the PhuzDP, it is that there is no concentric seat on the turbo-side flange for the turbo collar to sit in. I will let Matt explain this in more detail if he likes, but this makes properly mating the turbo and the DP a little more difficult, as it initially had an exhaust leak when they installed it.
[I was able to get Matt on the phone and he discussed with the shop owner. The issue was resolved and there was no leak when they retorqued the bolts].
Now the interesting stuff:
It is definitely louder on initial acceleration, but it is about the same decibel level when the turbo is spooled up.
The turbo spools up much sooner (obviously), and also smoother. I have had the ipd TCV for a few months, if anyone is wondering. As I have a GT, I never really heard the turbo spool as distinctly as I do now, simply because the engine is quieter than it was before.
Flooring it on the highway reflects the above. There is considerably less turbo lag, as you would expect. It may even be better for the car to not get that "kick" of boost.
Does anyone know how heavy the stock DP is? Matt's is 15 lbs and definitely lighter.
The instantaneous fuel mileage when coasting in a GT increases much faster. I am feeling less engine drag. This makes sense.
The difference in low end torque was so distinct, and my sphincter was confused and ill prepared for the shock delivered to my butt dyno. Seriously, my rear iris closed just a little.
In the end, I am happier, and my car sounds much angrier. The shop I used is also interested in doing exhausts and possibly manifolds as time goes on. If anyone has something they would like to see, let me know, as I now unofficially drive the "test car" and they are very flexible.
