Xenonk Posted October 12, 2005 Share Posted October 12, 2005 yea, online sound clips, videos and pics just doesn't do justice for real life. I only wish that BPM would make a twister exhaust system for our cars.. that would make everyone think the car is powered by some 5.7 Litre V8 motor with straight pipes.. DROOL! Man, some times I really miss my WRX exhaust sounds Keefe Link to comment Share on other sites More sharing options...
ProConcept Posted October 12, 2005 Share Posted October 12, 2005 So you saying even though this exhaust is a very free flowing design (no resonator, high volume mufflers) it still not that loud? Asking since I have a EVO2 sitting around right now that I will be installing this weekend along with dp/up stg 2 and im hoping for some mean ass loudness. Since my borla isn't that loud right now. I guess all exhausts for our cars will be somewhat quieter than others since were using 2 mufflers instead of one. Link to comment Share on other sites More sharing options...
wayne53 Posted October 12, 2005 Share Posted October 12, 2005 It should be plenty loud :devil: I backed my car down the driveway last night and put it in the garage and my friend that lives 3 houses down called me to ask WTF I was doing driving around, waking him up at 1am. Thats with the Perrin CBE..I think it could be louder, I'm hoping so once I get my UP/DP. But everyone tells me it's plenty loud Link to comment Share on other sites More sharing options...
moviemadness Posted October 12, 2005 Share Posted October 12, 2005 either that sound clip was terrible or that exhaust sounds.. nasty. a deeper throatier warmer sound would be nicer. even a silencer would be nice. Link to comment Share on other sites More sharing options...
Legasee Posted October 12, 2005 Share Posted October 12, 2005 that was a monster and a half (but I guess anytime you add up/dp...it gets beyond CA emissions laws ...enjoy..!!!...the Legacy's are much louder than the WRX with these EVOs....looks nice...i'm trying to get a deal on some SP2 In Taiwan now... Link to comment Share on other sites More sharing options...
Boostjunkie Posted October 12, 2005 Share Posted October 12, 2005 this exhaust (Evo2) is all looks and no bite driving around and I felt like I was driving a stock car with the trunk pass-through open.. in other words.. it's really really quiet. Have you had your hearing checked recently Keefe?!? If it was an EVO2 it is most certainly not anywhere near close to stock. I installed headers this past weekend on BOXRPWR's car (EVO2 equipped) and I could hear him coming from a block away. It's not stupid loud, and sounds great at WOT, but a subtle exhaust it is not. In comparison the SP2 on SnoDork's car is mild. Mellow burble at idle, a bit of growl on acceleration, almost stock at cruise. Link to comment Share on other sites More sharing options...
wayne53 Posted October 12, 2005 Share Posted October 12, 2005 Did he get equal length headers..and did he loose the boxer rumble? Link to comment Share on other sites More sharing options...
Boostjunkie Posted October 12, 2005 Share Posted October 12, 2005 Yup, BOXRPWR bought my QTP equal length headers. There is still a bassy burble at idle, but when you get on it sounds more like a big bore superbike on steriods than the usual Subaru rumble. I like the sound, some might not. Link to comment Share on other sites More sharing options...
Xenonk Posted October 12, 2005 Share Posted October 12, 2005 So you saying even though this exhaust is a very free flowing design (no resonator, high volume mufflers) it still not that loud? Asking since I have a EVO2 sitting around right now that I will be installing this weekend along with dp/up stg 2 and im hoping for some mean ass loudness. Since my borla isn't that loud right now. I guess all exhausts for our cars will be somewhat quieter than others since were using 2 mufflers instead of one. It's really not that loud.. the mufflers are hiding a lot of the sound.. lets just put it this way, I can hear my music clearly at volume level 3 to 5... and hold a civil conversation dB level in the car with the people in the back.. My old WRX BPM twister exhaust was soo loud that I had to roll the windows down (to keep the droning out) and had to yell to my co-driver/passenger.. after a 30 min ride, I was at the brink of losing my voice just communicating to my passenger in the front seat. If you had to compare to the old WRX headunit, I would have to turn it to level 25 for the volume to even hear any of the lyrics of a song. Keefe Link to comment Share on other sites More sharing options...
Xenonk Posted October 12, 2005 Share Posted October 12, 2005 It should be plenty loud :devil: I backed my car down the driveway last night and put it in the garage and my friend that lives 3 houses down called me to ask WTF I was doing driving around, waking him up at 1am. My old BPM exhuast could be heard well over 1/2 mile away.. and during start ups, you can hear it from over 500 ft away (5 to 7 houses down the street).. my neighbors really didnt like it when my brother, my cousin and me would leave in the early morning for an autox with 3 BPM mufflers going off. Sounded like 3 BIG Harley-Ds just started up at 5am for the early ride. NOW that was beyond stupid loud http://www.speedoptions.com/members/38458/27877/pic34.jpg BPM's Turboback + GT muffler for the WRX on the ground http://www.speedoptions.com/members/38458/27877/pic39.jpg BPM's Mk3 twister Muffler on the WRX... http://www.bpmsports.com/products/images/MKIIIChamber.jpg the "muffler" of the Twister Mk3.. all piping baby.. http://www.bpmsports.com/products/twister.htm Keefe Link to comment Share on other sites More sharing options...
Drift Monkey Posted October 12, 2005 Share Posted October 12, 2005 Meh. The BPM crap is useless. If you want loud, run open downpipe... Link to comment Share on other sites More sharing options...
Boostjunkie Posted October 12, 2005 Share Posted October 12, 2005 +1 Link to comment Share on other sites More sharing options...
jsalicru Posted October 12, 2005 Share Posted October 12, 2005 open downpipe might not be as loud. Kevin's car sounds way different now with the QTP headers on. Its cool, but not my particular taste. I like something in between the EVO2 and the SP2. EVO2 is too loud and the SP2 too quiet. However, this time around I think I plan to keep the car quiet. "some say, his arms are made of coiled adamantium fibers. And that he tops his cereal with nuts and bolts. All we know is, he's called the Jose." Link to comment Share on other sites More sharing options...
JBLU24 Posted October 12, 2005 Share Posted October 12, 2005 so far its either gonna be the EVO2 or the Perrin for me.....leaning towards Perrin Link to comment Share on other sites More sharing options...
Xenonk Posted October 13, 2005 Share Posted October 13, 2005 Meh. The BPM crap is useless. If you want loud, run open downpipe... by rules of harmonics, typically longer horns are louder since you are concentrating the direction. edit: found some info on dBs... http://otto.cmr.fsu.edu/~elec4mus/topics/decibel.html "Decibels are also used in measuring SOUND PRESSURE. Because sound pressure squared is proportional to sound power, sound pressure in decibels is equal to 20 times the pressure ratio. If a reference pressure is chosen, then we can measure actual sound levels in decibels, and this is done. The reference pressure is 20 micropascals, 1 Pa being a pressure of 1 newton per square meter; 20mPa is about the threshold of hearing at 1,000 Hz for most people, so it is a convenient reference. In any case, it has been agreed upon by all international standards. A sound pressure level in decibels is always referred to this standard pressure." Typically, Greddy exhausts are designed at a 95 dB limit.. some exhausts like Thermal R&D makes some really LOUD exhuasts (well into the 108 dB range)... A friend of mine (2003 WRX) with a custom turbo back (stock uppipe and header) made an amazingly loud 117 dB with the cutout open.. with the cutout closed, she still managed to hit 102 dB on the reader from 25 feet away. Keefe Link to comment Share on other sites More sharing options...
illt3ck Posted October 13, 2005 Share Posted October 13, 2005 Anyone have a full turbo back with SP2 - I'm interested to see what this sounds like. Link to comment Share on other sites More sharing options...
j255c Posted October 20, 2005 Share Posted October 20, 2005 i as well am considering either a perrin cbe or a evo2 cbe.. Xenonk you seem to know a lot about the sounds, is a perrin louder or about the same? 06 TB EVO IX SE stock turbo monster subaru hater Link to comment Share on other sites More sharing options...
Drift Monkey Posted October 21, 2005 Share Posted October 21, 2005 by rules of harmonics, typically longer horns are louder since you are concentrating the direction. edit: found some info on dBs... http://otto.cmr.fsu.edu/~elec4mus/topics/decibel.html "Decibels are also used in measuring SOUND PRESSURE. Because sound pressure squared is proportional to sound power, sound pressure in decibels is equal to 20 times the pressure ratio. If a reference pressure is chosen, then we can measure actual sound levels in decibels, and this is done. The reference pressure is 20 micropascals, 1 Pa being a pressure of 1 newton per square meter; 20mPa is about the threshold of hearing at 1,000 Hz for most people, so it is a convenient reference. In any case, it has been agreed upon by all international standards. A sound pressure level in decibels is always referred to this standard pressure." Typically, Greddy exhausts are designed at a 95 dB limit.. some exhausts like Thermal R&D makes some really LOUD exhuasts (well into the 108 dB range)... A friend of mine (2003 WRX) with a custom turbo back (stock uppipe and header) made an amazingly loud 117 dB with the cutout open.. with the cutout closed, she still managed to hit 102 dB on the reader from 25 feet away. blah blah blah The TXS RFL and Blitz Nur Spec are both still louder than the BPM. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.