mac header rasp !!!!
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mac header rasp !!!! how the hell do i get rid of this horrible rasp after i installed mac headers and ory? p.s. thanks for replies on the instalation process it took me about 6 hrs that includes about 45 min to clean up those welds. RASP SUCKS!!!!!! <img border="0" alt="[bang head]" title="" src="graemlins/gr_banghead.gif" />
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From: Orange county n.y.
Re: mac header rasp !!!! forgot to add this i have a borla cat back. also i just recieved my new tr 224 112 cam will this help rid me of any of this rasp? thanks for any replies <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Re: mac header rasp !!!! The rasp is pretty bad,especially with an open cut-out.Closed it's not too bad.One thing that helped somewhat was the addition of a dynomax Bullit muffler in the I-pipe before the cat back.I've also heard that eliminating the ball flanges & replcing them with actual collectors
helps,too.The only problem with that last one is I have yet to find a shop that'll work on the headers in-car.
helps,too.The only problem with that last one is I have yet to find a shop that'll work on the headers in-car.
Re: mac header rasp !!!! I'm running Macs w/ custom OR pipes and MAC Y to a GMMG. Rasp was also bad until I did the MAC merge collector/extension mod(poor man's LT) with 3" flanges, which eliminates the ball flanges. Now rasp is virtually eliminated even with the OR pipes <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Re: mac header rasp !!!! </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by LowETz:
<strong> I'm running Macs w/ custom OR pipes and MAC Y to a GMMG. Rasp was also bad until I did the MAC merge collector/extension mod(poor man's LT) with 3" flanges, which eliminates the ball flanges. Now rasp is virtually eliminated even with the OR pipes <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I'm running macs as well, and this drives me nuts. Did you find this from a sponsor here or did you peice the parts together yourself?
Any help would be great.
<strong> I'm running Macs w/ custom OR pipes and MAC Y to a GMMG. Rasp was also bad until I did the MAC merge collector/extension mod(poor man's LT) with 3" flanges, which eliminates the ball flanges. Now rasp is virtually eliminated even with the OR pipes <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I'm running macs as well, and this drives me nuts. Did you find this from a sponsor here or did you peice the parts together yourself?
Any help would be great.
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From: Orange county n.y.
Re: mac header rasp !!!! if running different collectors will get rid of this rasp i'll get them this week. will this defintly get rid of the rasp thought? please please i hope so.
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Re: mac header rasp !!!! Alchemist.....just find any good shop that doesn't mind working on a car w/out cats, and tell them you want the ball flanges cut off and replaced w/3' collector flanges, as well as your ORP's and Y pipe. This work can be done w/out removing the headers from the car.
He'll prolly need to put an X" length extension in the collector portion to weld the flange to, but this will get rid of the rasp 90% or more depending on your setup, should make a few more rwhp by breathing a bit freer, as well as making the exhaust really easy to disasemble/work on when the need arises.
My setup is kind of a bastard system in that I had FLP " type " quick disconnect ORP's and cats fabbed up running into the MAC Y, then into a GMMG, but gotta addmit sounds good to my ear <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
He'll prolly need to put an X" length extension in the collector portion to weld the flange to, but this will get rid of the rasp 90% or more depending on your setup, should make a few more rwhp by breathing a bit freer, as well as making the exhaust really easy to disasemble/work on when the need arises.
My setup is kind of a bastard system in that I had FLP " type " quick disconnect ORP's and cats fabbed up running into the MAC Y, then into a GMMG, but gotta addmit sounds good to my ear <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
