I just had the system installed about an hour ago. For a refresher, check out my original post when I first purchased the system.
http://infinitifx.org/phpBB2/viewtopic. ... 5649187bfa
After debating over the winter whether to go completely custom or to try and have the OBX catback modified to fit, I decided on the modified route. (Besides, it took up too much space in the garage.)
I ended up talking to Ron at Performance Autowerks out in Naperville, IL.
http://www.performanceautowerks.com/Pag ... Frames.htm
Their site mentioned custom fabrication, and they recieved a good word from some EvoM members.
I wanted to fab up a custom y-pipe since none of the Fuji/Nismo style y-pipes will fit our AWD system. Since the materials would have to be ordered, we just decided to mod the catback for now.
The tips were lengthened to about 1/2" past the bumper (per other members recommendations, especially since I had no idea if this was a loud system). An 8" extension was welded onto the B-pipe. (SS piping section). The factory tips were used, since the OBX tips looked a bit too comical for my tastes.
So basically, the entire catback system is stainless steel. The OBX system is polished 304 SS, the factory tips and piping is 409 SS (I believe)
The modification costs came out to $210, the catback I bought off of Ebay for $295. So in total, it comes out to about $500 for a complete 3" mandrel-bent stainless steel system. I think that's pretty reasonable.
As for sound, it's actually quieter than stock at idle and part throttle driving. This makes me wonder how restrictive the rear muffler is. Did I mention how quiet it is??
When you go WOT, it sounds smoother than stock and is probably just as loud. It actually sounds pretty awesome. It's hard to describe the tone. It doesn't sound like Flowmasters (blatty/pulse-like). It just sounds smooth.
From the seat-of the-pants view, the power delivery is smoother. The engine doesn't seem to strain as much getting up to speed. At WOT, it seems to have a bit more pick up, but the Butt-dyno is infamous for that.
I'll head out to the track tomorrow night to see if there's any improvement. Last time I trapped at 90mph fighting a pretty good headwind, so I'll set the bar at 91 mph.
Since the system is so quiet, my assumption is that the muffler is restrictive. So power-wise, I'm not too optimistic about tomorrow.
I'm sure I'll get more power from the y-pipe change when I get it fabbed up. (from under the car, the factory y-pipe looks ridiculous, as does the factory cat-back piping. Heck, the stock system from my Evo used bigger piping and mandrel bends)
I'll keep everyone posted on the results.
http://infinitifx.org/phpBB2/viewtopic. ... 5649187bfa
After debating over the winter whether to go completely custom or to try and have the OBX catback modified to fit, I decided on the modified route. (Besides, it took up too much space in the garage.)
I ended up talking to Ron at Performance Autowerks out in Naperville, IL.
http://www.performanceautowerks.com/Pag ... Frames.htm
Their site mentioned custom fabrication, and they recieved a good word from some EvoM members.
I wanted to fab up a custom y-pipe since none of the Fuji/Nismo style y-pipes will fit our AWD system. Since the materials would have to be ordered, we just decided to mod the catback for now.
The tips were lengthened to about 1/2" past the bumper (per other members recommendations, especially since I had no idea if this was a loud system). An 8" extension was welded onto the B-pipe. (SS piping section). The factory tips were used, since the OBX tips looked a bit too comical for my tastes.
So basically, the entire catback system is stainless steel. The OBX system is polished 304 SS, the factory tips and piping is 409 SS (I believe)
The modification costs came out to $210, the catback I bought off of Ebay for $295. So in total, it comes out to about $500 for a complete 3" mandrel-bent stainless steel system. I think that's pretty reasonable.
As for sound, it's actually quieter than stock at idle and part throttle driving. This makes me wonder how restrictive the rear muffler is. Did I mention how quiet it is??
When you go WOT, it sounds smoother than stock and is probably just as loud. It actually sounds pretty awesome. It's hard to describe the tone. It doesn't sound like Flowmasters (blatty/pulse-like). It just sounds smooth.
From the seat-of the-pants view, the power delivery is smoother. The engine doesn't seem to strain as much getting up to speed. At WOT, it seems to have a bit more pick up, but the Butt-dyno is infamous for that.
I'll head out to the track tomorrow night to see if there's any improvement. Last time I trapped at 90mph fighting a pretty good headwind, so I'll set the bar at 91 mph.
Since the system is so quiet, my assumption is that the muffler is restrictive. So power-wise, I'm not too optimistic about tomorrow.
I'm sure I'll get more power from the y-pipe change when I get it fabbed up. (from under the car, the factory y-pipe looks ridiculous, as does the factory cat-back piping. Heck, the stock system from my Evo used bigger piping and mandrel bends)
I'll keep everyone posted on the results.
