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best TRX450R pipe

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  #11  
Old 07-09-2004, 01:52 AM
450r's Avatar
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Default best TRX450R pipe

Originally posted by: joelrichard50
Originally posted by: 450r
i researched this subject for about a month before deciding on the lrd . made several phone calls and alot of surfing. in the end it was between three. curtis sparks, lrd and fmf factory 4. there are several other really good pipes but most only produce power in a certain range of power.top end or bottom end. these three pipes pull all the way through. the fmf dropped a little in the bottom end but held a little more in the top.the hmf has bang for the buck but its a fairly new co. to me . ill go with the champion building status of a well known maker. both curtis sparks and lehman (lrd) have titles under their belts.
duncan and ct also rank up there but were a little pricey for only on or two more horse.
How many DB's you shooting?
im probably around the 98-101 range with the turn down end cap that comes with it . but thats when you rap it up . if you hold the rpm's like they do when testing its a solid 98.8 , not even close to passing ,but i bought the disks for a curtis sparks x-6 and its a sweet 96.8. and so long as your close they'll usually let you slide.
 
  #12  
Old 11-16-2004, 11:08 PM
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Default best TRX450R pipe

when i get my 450r it will be no contest the ROSSIER exaust is top of the line from 38 HP stock to 47 HP with ROSSIER exaust


WHAT COMPETITION
 
  #13  
Old 11-17-2004, 12:20 AM
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Default best TRX450R pipe

Hey 450r,

I researched this whole pipe issue for months also. I rode different machines with different pipes and finally narrowed it down to the Sparks exhaust and LRD, I went with Sparks. Which hi-rev CDI box did you go with? Did you a big difference, does the HRC cam pull hard top end?
 
  #14  
Old 11-17-2004, 12:52 AM
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Default best TRX450R pipe

when i get my 450r it will be no contest the ROSSIER exaust is top of the line from 38 HP stock to 47
HP with ROSSIER exaust
rossier is good, but they didnt just change the pipe to get this much gain. this is from their website:

"When combined with an aftermarket filter, proper jetting and cam, our TRX450 gained 9.0 HP at the rear wheel! We tried many pipes and found you can only achieve 42.5 HP peak with the stock cam - the HRC™ or Rossier cam will give you the rest of the power.

Dyno sheet is stock engine with RE Pipe, filter, jetting and cam."
 
  #15  
Old 11-17-2004, 05:32 PM
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Default best TRX450R pipe

sorry then when i get my 450r in the summer ill be getting the whole package.
 
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