cakebreak Posted May 13, 2011 Share Posted May 13, 2011 (edited) Just curious as to if anyone knows how many db msa twice pipes make? Edited May 13, 2011 by cakebreak Quote Link to comment Share on other sites More sharing options...
datsun723 Posted May 13, 2011 Share Posted May 13, 2011 We did a test on mine last year...was somewhere around 105 Quote Link to comment Share on other sites More sharing options...
cakebreak Posted May 13, 2011 Author Share Posted May 13, 2011 right on! Im hoping to buy a 240z soon and put a pair of them on. Any idea if the msa 3-2 header with the msa twice pipes for the 3-2 header would be a true dual system or would i still have that y pipe? Quote Link to comment Share on other sites More sharing options...
billseph Posted May 13, 2011 Share Posted May 13, 2011 You'll still have a Y-pipe unless you decide to do some extra customization. Trust me though...I used to have headers and twice pipes, and you will LOVE that sound...it's intoxicating. Quote Link to comment Share on other sites More sharing options...
datsun723 Posted May 13, 2011 Share Posted May 13, 2011 Get the 3-2-1 headers for sure. I've had both the twice pipes with and without headers and the headers make a huge difference. Here are some of my vids. You can't really tell how loud it is but you get an idea of the sound. And they're louder for carbed Z's. Mine is EFI. Youtube Quote Link to comment Share on other sites More sharing options...
cakebreak Posted May 13, 2011 Author Share Posted May 13, 2011 I have seen your videos many times, and by the way that is a gorgeous z car! They were actually the deciding point in getting the twice pipes. Is all this stuff i hear about losing power with them true? Quote Link to comment Share on other sites More sharing options...
datsun723 Posted May 13, 2011 Share Posted May 13, 2011 I have seen your videos many times, and by the way that is a gorgeous z car! They were actually the deciding point in getting the twice pipes. Is all this stuff i hear about losing power with them true? Thanks! Definitely a work in progress I'm glad the vids helped. I'm not sure on the power issue...if you do some reading on the "correct" exhaust size for your particular motor (I'm guessing mostly stock?) then it is a little too big. Even though the pipes are small the exhaust is as large as a 3" So yes, you might lose some low-end torque but if you ever build the motor up the exhaust won't be the limiting factor Quote Link to comment Share on other sites More sharing options...
cakebreak Posted May 14, 2011 Author Share Posted May 14, 2011 Yeah i was planning on doing the headers... twice pipes... a decent but not ridiculous cam and then hopefully some Mikuni 40 phh carbs and DD it until i save up enough money for a 2jzgte swap. What would recommend for installation getting it professionally done and spending the extra money or doing it your self if you can weld and dealing with the headaches ive heard about fitment? Quote Link to comment Share on other sites More sharing options...
datsun723 Posted May 14, 2011 Share Posted May 14, 2011 Yeah i was planning on doing the headers... twice pipes... a decent but not ridiculous cam and then hopefully some Mikuni 40 phh carbs and DD it until i save up enough money for a 2jzgte swap. What would recommend for installation getting it professionally done and spending the extra money or doing it your self if you can weld and dealing with the headaches ive heard about fitment? I had a buddy install mine and it was a PITA. He had to hack it up to make it fit. I paid him $100...if you have the skills do it yourself...it most likely won't fit Quote Link to comment Share on other sites More sharing options...
cakebreak Posted May 14, 2011 Author Share Posted May 14, 2011 Right on... well thank you very much for all of your help! Quote Link to comment Share on other sites More sharing options...
billseph Posted May 14, 2011 Share Posted May 14, 2011 I had basically no problems installing mine with the clamps that were supplied in the kit and if you need to do a little cutting it is very easy. I'd say with minor mechanical skills this is an easy project...especially when installing to fit with headers, my fitment was near perfect. Back when I did mine in highschool I hacked up the rollpan where the tips exit to raise the tips up a bit (bad idea in retrospect). I could have avoided this by taking 10 minutes to make a longer bracket for the glasspacks to hang from, but hey I was 17 and had my mind set on the "easy" way. Long story short...in my opinion this is a "fairly" easy install, no welding required if you wanna use the clamps...but of course welding would ultimately be a cleaner look and you wouldn't have to worry about the clamps letting loose ever. Quote Link to comment Share on other sites More sharing options...
cakebreak Posted May 14, 2011 Author Share Posted May 14, 2011 nice... was that on a 240 260 or 280? Quote Link to comment Share on other sites More sharing options...
billseph Posted May 14, 2011 Share Posted May 14, 2011 73 240z with MSA 3-2-1 headers. Quote Link to comment Share on other sites More sharing options...
cakebreak Posted May 14, 2011 Author Share Posted May 14, 2011 Right on! i heard the fitment was better on 240z's and then even better with the 3-2-1 headers Quote Link to comment Share on other sites More sharing options...
Tony D Posted May 15, 2011 Share Posted May 15, 2011 On the 105 dB, what was the measuring criteria? Was it the CHP test (the one they do when they pull you over in California for 'excessive noise'?) HOW you measure the noise is very subjective. Is there a link to the original test you did so I can read on the process you used? Quote Link to comment Share on other sites More sharing options...
datsun723 Posted May 15, 2011 Share Posted May 15, 2011 (edited) On the 105 dB, what was the measuring criteria? Was it the CHP test (the one they do when they pull you over in California for 'excessive noise'?) HOW you measure the noise is very subjective. Is there a link to the original test you did so I can read on the process you used? Hey Tony, We measured it between 5-7 feet back at a 45* angle with the reader on the ground. I think it's similar to how the CHP tests the "excessive noise" at least from a quick Google search. And that's a negative on the link. Edited May 15, 2011 by datsun723 Quote Link to comment Share on other sites More sharing options...
Tony D Posted May 16, 2011 Share Posted May 16, 2011 The CHP Criteria is listed in the CVC, which is online if you're interested in how they do it. You're in CA, so if you want to know what your setup will test at if called upon for a CHP roadside check, you can duplicate it pretty easily. dB Limits in CA Link The '50 Foot from Centerline' Rule My Favorite Section (e)! 1 Quote Link to comment Share on other sites More sharing options...
datsun723 Posted May 16, 2011 Share Posted May 16, 2011 Radar jammer? I hadn't the faintest idea what that thing did! Quote Link to comment Share on other sites More sharing options...
Tony D Posted May 16, 2011 Share Posted May 16, 2011 As long as you got a federal license to transmit microwaves you can have and operate it...muahahahhaha! Quote Link to comment Share on other sites More sharing options...
madkaw Posted May 16, 2011 Share Posted May 16, 2011 http://s2.photobucket.com/albums/y9/_mad_kaw_/?action=view¤t=MVI_2290.mp4 Put your stereo headsets on and listen to the music Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.