boardkid280z Posted March 14, 2009 Share Posted March 14, 2009 Choose what your preferred exhaust system would consist of for a street driven turbocharged L28. (For the standard sized muffler I am assuming a straight through design, not a chambered muffler like most Flowmaster type mufflers) Quote Link to comment Share on other sites More sharing options...
X64v Posted March 14, 2009 Share Posted March 14, 2009 I really enjoy my 3" open system. Very aggressive without being so loud as to bother the neighbors or drown out in-car music/conversation. Quote Link to comment Share on other sites More sharing options...
boardkid280z Posted March 17, 2009 Author Share Posted March 17, 2009 I'm kind of surprised there aren't more votes for the 3" straight pipe. Quote Link to comment Share on other sites More sharing options...
randy 77zt Posted March 21, 2009 Share Posted March 21, 2009 i bulit a 3" with a magnaflow straight thru muffler where the cat converter was.used 2 3" 90 mandrel bends .nice sound-not too loud,cant hear it on the freeway except when you get on the throttle. Quote Link to comment Share on other sites More sharing options...
240hoke Posted March 21, 2009 Share Posted March 21, 2009 Turbine sizing makes a HUGE difference in the sound. With the tiny stock turbo its pretty restrictive and with a single muffler it sounds really good, or even just a straight pipe. When you start opening up the turbine then it gets ALOT louder. I have a .82 stage 5 t3 turbine on my turbo and I had to add in a resonator to knock down the noise and drone. Quote Link to comment Share on other sites More sharing options...
HowlerMonkey Posted March 25, 2009 Share Posted March 25, 2009 If you're running a catalytic convertor, zero muffler has a nice low rumble without any harshness. I'm going with two chambered mufflers side by side because of restriction because I like my cars very quiet. Someone here (djz) is doing it but hasn't finished it yet but has pics of two side by side. Quote Link to comment Share on other sites More sharing options...
Armand Posted March 31, 2009 Share Posted March 31, 2009 Straight pipe!!! Quote Link to comment Share on other sites More sharing options...
Armand Posted March 31, 2009 Share Posted March 31, 2009 I just uploaded a video of my straight pipe. Here you go! http://videos.streetfire.net/video/1971-Datsun-240z-SR20DET_643830.htm And for reference, here is the same exhaust with a Borla XR-1. It's almost the same just a lot quieter and smoother, with a LOT less awesome backfires. http://videos.streetfire.net/video/SR20DET-Datsun-240z_177045.htm Quote Link to comment Share on other sites More sharing options...
X64v Posted March 31, 2009 Share Posted March 31, 2009 Here's an in car video of mine, L28et, stock T3 turbo, 3" open with 6" radius mandrel bends (nothing tighter than 60*). It's not really as loud around town as the video makes it sound. http://www.youtube.com/watch?v=fUmhNmQuZx4 I don't hit full boost more than maybe twice that whole video though, which is why you hear my BOV venting like mad most of the time. Quote Link to comment Share on other sites More sharing options...
gumbyz13 Posted April 6, 2009 Share Posted April 6, 2009 If you're running a catalytic convertor, zero muffler has a nice low rumble without any harshness. I'm going with two chambered mufflers side by side because of restriction because I like my cars very quiet. Someone here (djz) is doing it but hasn't finished it yet but has pics of two side by side. Just wondering how that set-up worked/sounded for you. I was looking at doing something similar with stacked 2" glasspacks on a 3" pipe for my 71. Quote Link to comment Share on other sites More sharing options...
HowlerMonkey Posted April 10, 2009 Share Posted April 10, 2009 I used it on a rotary engine because it was necessary to run more than a single chamber muffler but multi-chamber mufflers were too restrictive to run a single.......so I ran two. Haven't done it on a nissan yet but will soon enough on my M30 infiniti since it seems to have tons of room back there. That pic is someone elses project......link below. http://forums.hybridz.org/showthread.php?p=1003620#post1003620 Quote Link to comment Share on other sites More sharing options...
slown280z Posted April 10, 2009 Share Posted April 10, 2009 3in straight pipe if you want agressive. I think it sounds absolutely amazing at high RPMs, and at idle, nothing else quite sounds like it (on land anyways, cuz it sounds like a boat!)! Also, 3in to a Magnaflow 6in body straight through is leaps quieter but still sounds great! Quote Link to comment Share on other sites More sharing options...
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