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  #1  
Old 17-04-2009, 07:27 PM
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Default need an opinion on this :-)

what do you guys reckon of this style dump pipe

pros and cons

http://tuspeed.com/store5/twin-dump-pipe-p-321.html
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Old 17-04-2009, 07:39 PM
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Looks allright to me. don't think it would much benefits over a butler pipe though.
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Old 17-04-2009, 07:43 PM
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i had a similar one, BPM/CES, style made by rms here locally. i had nothing really to compare it too, back to back, but with the vf series turbo it seemed a waste of time as you can't get a true seperation of the gases. your best bet is to go the oval/venturi effect. the twin dump sounds, technically superior, but as a matter of fact, exhaust gas needs flow so less or any restriction is favoured instead of splitting the wastegate pulse or for what benefit? other than to channel it back into the dumpipe at the first bend.

pros: it looks cool. you can tell your mates about your twin style dumpipe making you sound like you know stuff about turbos. been around for years, so it must work?

cons: may foul on the steering if the rest of the exhaust moves, does not provide any extra gain over all the other dumpipes available. quality of the stainless is unknown as they insist on hpc coating everything they do.
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Old 17-04-2009, 08:01 PM
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they pooh to be honest get a open mouth de-cat (dump pipe) get a bell houseing you wont get boost creep with them them twin necks are hard to map and you always get boost creep.......
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Old 17-04-2009, 08:11 PM
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whats a butler dump pipe worth?

mmmmmm when u say a bell housing is that the one with the splitter built into it or without?
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Old 17-04-2009, 08:12 PM
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wanted to try something different and see if i can get better gains but if its not worth it will just stick with whats known :-)
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Old 17-04-2009, 08:22 PM
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Divorced dump is good for large turbos especially if you have an external gate. But if you dont then oval dump is fine.

I have a manta system and love it! Not too loud, and very quality system.
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Old 17-04-2009, 08:32 PM
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Quote:
Originally Posted by berrjona
whats a butler dump pipe worth?

mmmmmm when u say a bell housing is that the one with the splitter built into it or without?
no its a full open neck ie one big hole you cant beat eem
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