I was one of the first people to get outlets, a multi-piece kit from MMP. 2013 335is, FBO. Car was tuned by @V8bait, and I ran it on the dyno. Put on outlets, had a single log/tune done, and hit the dyno again the very next day, which showed a 13whp and 52wtq gain, and a significantly stronger midrange. So I established that outlets are absolutely worth it. The dip in between the torque peaks is due to overboost cuts, would've loved to dyno with those corrected, but V8bait thought taking med-school exams was more important. Shows how much he cares about us. #NOTmyPRESIDENT
The multi-piece outlets were difficult to install, had a lot of hose clamps, and I encountered a failure in the silicone not long after. This was coincidentally around the same time Mauricio introduced his 1-piece silicone outlets, so I picked up one of those to replace the failed multi-piece. This went well for a few months, until I encountered a failure at the bend coming out of the front turbo. It got too close to the front exhaust manifold. I ordered a replacement tube, but this time made an ugly aluminum adapter to replace the elbow to the front turbo (Seen below). Fast forward a few months, and I had another failure, this time in the straight leg coming from the rear turbo. This was about the same time that Dusty from Faster by Pinnacle released his aluminum outlets. Mauricio has always treated me well, and stood by his product. I never used heat tape, never removed a heat shield I've heard you should remove, and probably didn't spend as much time as I should on installs. But the failures suck. Outlets, although easier to install than inlets, still suck.
A word on overall outlet install. The MMP silicone piece fits well, install is fairly straight forward. First I attach just the CNC adapter to the front turbo, tightening the V-band clamp before the outlet is installed. This clamp can be difficult to get to, so doing so without the outlet tube on makes it a breeze. Then I installed the rear silicone leg to its CNC adapter on the bench, tightening the T-bolt clamp. Then I put the entire piece into the car. The V-band clamps to the turbo are surprisingly easy to get on, mostly because the CNC adapters hold themselves onto the turbo. I get to the rear V-band from underneath the car, I can reach up with one hand. I orient the V-band to where I could, with 2 extensions, reach it from underneath the car fairly well. Lastly, I clamp the front leg of the outlet to its adapter with the included T-bolt. Do the best you can to keep clearance from the exhaust manifolds...
Pinnacle's outlets are more difficult to install, you have to hold the outlet against the turbo with one hand, while positioning the V-band clamp with the other, all while making sure the O-ring doesn't fall out. If you're planning on doing it alone, go pay a hooker, you'll need her to hold your pipe while you stick it in. In other words, don't, get a friend to help you. I did it alone, but doing so added several hours to the install. I did the rear leg first. Put the O-ring in, slide the rear leg into the general area from the top. Leave it dangling down there (not attached to the turbo). Attach the silicone coupler to the front outlet leg, and tighten it down on the bench. Note the silicone coupler is as short as it can be, my clamp had to be on the very edge in order to cleared the bead rolling on both outlet tubes (Dusty, for future customers, an extra 1/2" length on the silicone coupler would help). Without the O-ring, slide the front outlet into place, then put the O-ring in, and have fun as you attach it to the turbo, making sure the O-ring stays put. Once the V-band bolt is started, the pipes won't fall out of place from the turbo, so get the bolt started a few turns, then stop there, leaving the front loose. Now slide the silicone tube over the rear outlet, peering down there by eye to make sure it's the appropriate length to perfectly mate to the rear turbo. Putting the rear outlet into the coupler will hold it while you attach the V-band clamp from underneath. This is an absolute pain in the ass.
The Pinnacle outlets fit well, even with my passenger side inlets (Though they made things tight for sure). Note I had to source a longer (About 6"), coupler in order to attach the outlet to my intercooler (ATM). There is good clearance to all exhaust manifolds, and they flow more, though I didn't notice any performance differences from my ass dyno (Which is more accurate than a dynocom).
The multi-piece outlets were difficult to install, had a lot of hose clamps, and I encountered a failure in the silicone not long after. This was coincidentally around the same time Mauricio introduced his 1-piece silicone outlets, so I picked up one of those to replace the failed multi-piece. This went well for a few months, until I encountered a failure at the bend coming out of the front turbo. It got too close to the front exhaust manifold. I ordered a replacement tube, but this time made an ugly aluminum adapter to replace the elbow to the front turbo (Seen below). Fast forward a few months, and I had another failure, this time in the straight leg coming from the rear turbo. This was about the same time that Dusty from Faster by Pinnacle released his aluminum outlets. Mauricio has always treated me well, and stood by his product. I never used heat tape, never removed a heat shield I've heard you should remove, and probably didn't spend as much time as I should on installs. But the failures suck. Outlets, although easier to install than inlets, still suck.
A word on overall outlet install. The MMP silicone piece fits well, install is fairly straight forward. First I attach just the CNC adapter to the front turbo, tightening the V-band clamp before the outlet is installed. This clamp can be difficult to get to, so doing so without the outlet tube on makes it a breeze. Then I installed the rear silicone leg to its CNC adapter on the bench, tightening the T-bolt clamp. Then I put the entire piece into the car. The V-band clamps to the turbo are surprisingly easy to get on, mostly because the CNC adapters hold themselves onto the turbo. I get to the rear V-band from underneath the car, I can reach up with one hand. I orient the V-band to where I could, with 2 extensions, reach it from underneath the car fairly well. Lastly, I clamp the front leg of the outlet to its adapter with the included T-bolt. Do the best you can to keep clearance from the exhaust manifolds...
Pinnacle's outlets are more difficult to install, you have to hold the outlet against the turbo with one hand, while positioning the V-band clamp with the other, all while making sure the O-ring doesn't fall out. If you're planning on doing it alone, go pay a hooker, you'll need her to hold your pipe while you stick it in. In other words, don't, get a friend to help you. I did it alone, but doing so added several hours to the install. I did the rear leg first. Put the O-ring in, slide the rear leg into the general area from the top. Leave it dangling down there (not attached to the turbo). Attach the silicone coupler to the front outlet leg, and tighten it down on the bench. Note the silicone coupler is as short as it can be, my clamp had to be on the very edge in order to cleared the bead rolling on both outlet tubes (Dusty, for future customers, an extra 1/2" length on the silicone coupler would help). Without the O-ring, slide the front outlet into place, then put the O-ring in, and have fun as you attach it to the turbo, making sure the O-ring stays put. Once the V-band bolt is started, the pipes won't fall out of place from the turbo, so get the bolt started a few turns, then stop there, leaving the front loose. Now slide the silicone tube over the rear outlet, peering down there by eye to make sure it's the appropriate length to perfectly mate to the rear turbo. Putting the rear outlet into the coupler will hold it while you attach the V-band clamp from underneath. This is an absolute pain in the ass.
The Pinnacle outlets fit well, even with my passenger side inlets (Though they made things tight for sure). Note I had to source a longer (About 6"), coupler in order to attach the outlet to my intercooler (ATM). There is good clearance to all exhaust manifolds, and they flow more, though I didn't notice any performance differences from my ass dyno (Which is more accurate than a dynocom).
