JTK37
New member
- Location
- New Jersey
I've been revamping the intake plumbing on my 16 DSG and chose the CTS Throttle pipe. I started my intake mods with the Neuspeed Hi-Flo Turbo Discharge as I have been happy with the P-Flo intake(sound, performance and parts quality/finish). I like the increase in diameter over the stock TOP that the Neuspeed offered and wanted to keep things the same on the throttle pipe side. The Spulen kit had been recommended but it didn't have the same 2.5" dia as the Neuspeed TOP or CTS Throttle Pipe, so I elected to go with the CTS.
In any system there will be a limiting factor, I want to remove as much restriction as possible(on my own DIY) so I started on the intake side. I understand there will be still be limiting factors, downpipes, exhaust, turbo capacity itself. But this is a start, if I can get it in I can figure out a way to get it out.
Upon opening I was pleased with the quality of the part in finish and welds. Scoured the box and found no instructions(.pdf on their website) or packing list of any kind(weird).
Install was pretty straight forward, I followed the CTS .pdf which was eh in quality and pictures as well as the Spulen installation from USP which I thought was a little better written and photographed.
Initial thoughts
I like the increase in diameter over the stock throttle pipe, volume of flow CAN increase, whether the turbo can produce an increase flow rate (volume and speed) to take advantage of it I don't really know(anyone know what its actually capable of?). The path of flow is a little more direct, now makes one 90* turn as opposed to the longer 110*ish degree turn.
Installation
Getting the stock throttle body silicone off is a little bit reminiscent to the girl you dated who your mother hated..... she's a b!t$h.
Heres a tip, I took of the stock intake runner(2-T25 screws and it pops right out), you can see it on top of the engine cover in this pic
That gave a little bit more room to access the 7mm hose clamp. I worked the silicone hose off the throttle body with a large long handled flathead screw driver. After removing the intercooler exit hose, MAP connector and two T30 screws mounting the stock throttle pipe I was able to pull the whole thing straight out the bottom pretty smoothly. If you have a second set of hands have them apply some downward pressure on the throttle body hose and it should pop free. Minimal twisting and its clear of everything.
Once the stock pipe was removed getting the CTS unit on was easier than expected. I was able to take the new silicon hose and install it by itself from beneath the car. I have pretty average size arms so this helped. I reached up, wiggled and rotated until it was seated fully, slid the clamp up from the bottom and oriented it so I could tighten the 7mm.
The new pipe went into place pretty smoothly, took some jostling to align it and slide it into the new silicon hose which was already on the throttle body(make sure you have a clamp aligned as you'll want it on the tube if you do it this way). A 3/8" closed end wrench came in hand to snug the new pipe into place where it has a slotted mount. Please note, if you do it this way you need to be able to reach up alongside the pipe to secure the hose clamp to the bottom of the silicon throttle body hose. ITS TIGHT, small tools and cuts and scrapes on the hands, but it is doable.
Impressions
Coupled with the Neuspeed Turbo Discharge things seem noticeably smoother. I can't measure Hp or Tq and I won't try to guess. What I've seen so far in close to 75 miles over two days has been the following:
1) No increase in noise- if anything I would say it may be a touch quieter, as if the flow has become smoother and with less turbulent restriction that otherwise was creating some sounds
2) Power Deliver- Like the turbo discharge I believe this has further increased the freeness with which RPM builds from 2750RPM up. I never had any complaints about power delivery being jerky or lagging, but now it seems more rubber band like, just a smooth build straight to redline.
Overall I'm pleased. I like the quality of the parts and what differences I've been able to perceive. With the next step being a tune or piggy back I'm hoping this combination of changes opened up the intake tract enough to make a difference. I know I've got to get everything I put into it back out, so a down pipe will be in the future as well, unfortunately that may not be a DIY install.
In any system there will be a limiting factor, I want to remove as much restriction as possible(on my own DIY) so I started on the intake side. I understand there will be still be limiting factors, downpipes, exhaust, turbo capacity itself. But this is a start, if I can get it in I can figure out a way to get it out.
Upon opening I was pleased with the quality of the part in finish and welds. Scoured the box and found no instructions(.pdf on their website) or packing list of any kind(weird).
Install was pretty straight forward, I followed the CTS .pdf which was eh in quality and pictures as well as the Spulen installation from USP which I thought was a little better written and photographed.
Initial thoughts
I like the increase in diameter over the stock throttle pipe, volume of flow CAN increase, whether the turbo can produce an increase flow rate (volume and speed) to take advantage of it I don't really know(anyone know what its actually capable of?). The path of flow is a little more direct, now makes one 90* turn as opposed to the longer 110*ish degree turn.
Installation
Getting the stock throttle body silicone off is a little bit reminiscent to the girl you dated who your mother hated..... she's a b!t$h.
Heres a tip, I took of the stock intake runner(2-T25 screws and it pops right out), you can see it on top of the engine cover in this pic
That gave a little bit more room to access the 7mm hose clamp. I worked the silicone hose off the throttle body with a large long handled flathead screw driver. After removing the intercooler exit hose, MAP connector and two T30 screws mounting the stock throttle pipe I was able to pull the whole thing straight out the bottom pretty smoothly. If you have a second set of hands have them apply some downward pressure on the throttle body hose and it should pop free. Minimal twisting and its clear of everything.
Once the stock pipe was removed getting the CTS unit on was easier than expected. I was able to take the new silicon hose and install it by itself from beneath the car. I have pretty average size arms so this helped. I reached up, wiggled and rotated until it was seated fully, slid the clamp up from the bottom and oriented it so I could tighten the 7mm.
The new pipe went into place pretty smoothly, took some jostling to align it and slide it into the new silicon hose which was already on the throttle body(make sure you have a clamp aligned as you'll want it on the tube if you do it this way). A 3/8" closed end wrench came in hand to snug the new pipe into place where it has a slotted mount. Please note, if you do it this way you need to be able to reach up alongside the pipe to secure the hose clamp to the bottom of the silicon throttle body hose. ITS TIGHT, small tools and cuts and scrapes on the hands, but it is doable.
Impressions
Coupled with the Neuspeed Turbo Discharge things seem noticeably smoother. I can't measure Hp or Tq and I won't try to guess. What I've seen so far in close to 75 miles over two days has been the following:
1) No increase in noise- if anything I would say it may be a touch quieter, as if the flow has become smoother and with less turbulent restriction that otherwise was creating some sounds
2) Power Deliver- Like the turbo discharge I believe this has further increased the freeness with which RPM builds from 2750RPM up. I never had any complaints about power delivery being jerky or lagging, but now it seems more rubber band like, just a smooth build straight to redline.
Overall I'm pleased. I like the quality of the parts and what differences I've been able to perceive. With the next step being a tune or piggy back I'm hoping this combination of changes opened up the intake tract enough to make a difference. I know I've got to get everything I put into it back out, so a down pipe will be in the future as well, unfortunately that may not be a DIY install.
