Can't stand the sound!!!!!!
05-26-2010, 07:45 PM
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Can't stand the sound!!!!!! I have pacesetter longtubes and ORY with a Magnaflow muffler. It sounds good while idling or rapping the gas while in park but on the road under alittle throttle the damn thing resonates so bad it makes my teeth hurt. What to do?
05-26-2010, 11:31 PM
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I have longtubes, ory, and magnaflow cat-back and it sounds good at any throttle position. what kind of merge are you running on your y-pipe? does one pipe slam into the other pipe or does it have a flowmaster merge style collector? I have a tsp ory and it has a good merge collector where both pipes meet side by side then merges together. A lot of people says that this style cuts down on the rasp. just something to consider.
05-27-2010, 05:38 AM
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05-27-2010, 08:46 AM
#8
It's a cylindrical race style muffler that can be welded into the I pipe.
http://www.google.com/products?hl=en...ed=0CDAQrQQwAg
http://www.google.com/products?hl=en...ed=0CDAQrQQwAg
05-28-2010, 05:26 AM
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When adding a bullet muffler do you still keep your original muffler and just add the bullet before it? Does this take away much horsepower? I need as much info as I can get because I need to make my changes soon. i'm going in for a dyno tune in 2 weeks.
05-28-2010, 05:51 PM
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I am in need of a tune. It goes in for a dyno tune on the 15th of June. Could that have anything to do with it? In park or neutral when you rev it, it sounds fine. Under load it sounds like hammered dogsh!t. I am new to this so I am totally clueless here. It's so loud and resonates so bad I don't even want to drive it.
05-28-2010, 10:16 PM
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Here is a link to some pics I took before/after I had the merge installed. They usually run about $50 for the merge. Now, I can't say it will take away 100% of your rasp, but, it does provide a much better merge over the Y you have now and this is where the rasp is coming from.
If you put a bullet in the I pipe, this may help too. I would recommend keeping your magnaflow catback with a bullet, if you just did a bullet, it would be extremely loud.....
I did see a gain in hp/tq from before and after the merge, granted my 1st set-up was crap, but I think if you did this mod before the tune, it will only add to the final result......Just my $.02
https://ls1tech.com/forums/generatio...erge-pics.html
If you put a bullet in the I pipe, this may help too. I would recommend keeping your magnaflow catback with a bullet, if you just did a bullet, it would be extremely loud.....
I did see a gain in hp/tq from before and after the merge, granted my 1st set-up was crap, but I think if you did this mod before the tune, it will only add to the final result......Just my $.02
https://ls1tech.com/forums/generatio...erge-pics.html
05-29-2010, 02:36 AM
#15
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the fm merge cuts down on turbulance wich will also reduce rasp. but since the fm merge brings the pipes together at an almost parallel angle the turbulance is almost non existant. also its pretty retarded IMO to join 2, 3" pipes into 1, 3" pipe. it's most definitely a choke point. at least go to a 3.5" i-pipe if not 4".
05-29-2010, 11:31 AM
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This part is wierd. When I manually shift it the sound is not as bad. Can't understand that one. It is the worst between 2000-2500 under acceleration while the car is in drive. I'm scratching my head here.
05-29-2010, 01:42 PM
#18
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duh. that just so happens to be the highest resonation point of your exhaust. and its made worse by the poor design of the y-pipe and the small diameter of the i-pipe and cat back. we've already told you how to fix it.
05-30-2010, 09:53 AM
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Well excuse me Brian for not being as smart as you.
05-30-2010, 01:44 PM
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I don't think by changin your driving habits or manually shifting will fix the issue. You are cammed with some really good flowing heads, but now your exhaust can't exit it smoothly enough. My rasp happened between 2-3k rpms too, under accelereation, but while crusing, no issues. I think Brian is just saying that there is no way around this...... you need to fix your Y pipe merge or get true duals. If you don't wanna get a FM Merge and have an exhaust shop fix it, look into TSPs new ORY design, it incorporates a FM style merge, and will probably help with your issue. You have 15 days till tune, better start ordering parts now.