LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Mac LT's

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Old Mar 11, 2005 | 11:12 AM
  #1  
DiabloGT's Avatar
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Mac LT's

http://www.lmperformance.com/4614/2.html
do those come with AIR and EGR hookups? would anyone pick them over Pace setter or jet hot lts?
thanks
Old Mar 11, 2005 | 11:14 AM
  #2  
95_LT1_6SPD's Avatar
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Re: Mac LT's

Those are mids, and they come with all emissions fittings.
Old Mar 11, 2005 | 12:36 PM
  #3  
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Re: Mac LT's

yeah, and don't buy from lmperformance. they're so overpriced.

neweraperformanceparts.com has the same set for 399.
Old Mar 11, 2005 | 03:13 PM
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Re: Mac LT's

but it comes with an offroad y pipe... does that mean it cant pass emissions? besides the inspection, only counting on emissions would a jet hot or pacesetter have a better chance of passing than Mac midlengths?
Old Mar 11, 2005 | 03:52 PM
  #5  
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Re: Mac LT's

i just got mac mids and i love them! You will notice alot more power in the higher rpm.
Old Mar 11, 2005 | 04:15 PM
  #6  
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Re: Mac LT's

Originally Posted by DiabloGT
but it comes with an offroad y pipe... does that mean it cant pass emissions? besides the inspection, only counting on emissions would a jet hot or pacesetter have a better chance of passing than Mac midlengths?
The y-pipe on the MAC's ends at the same place as the stock y-pipe, right before the factory cat. They have provisions for all emissions hookups, and you should pass without any issues at all.

Jet-Hot's and Pacesetters are both true long-tubes (unless you get the pacesetter mids, which are not supposed to be very good). They require that you get a custom made y-pipe with an aftermarket cat to pass the actual sniffer test, but since you moved the location of the catalytic converter, they are not technically emissions legal anywhere that does a visual inspection. This is not generally a problem though as most inspectors either do not know or care.
Old Mar 11, 2005 | 04:19 PM
  #7  
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Re: Mac LT's

are the pacesetters lt's any good?
Old Mar 15, 2005 | 02:03 PM
  #8  
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Re: Mac LT's

how much more hp /tq diff would i notice from the mac mids, and jet hot lt's? even though the mac mids have off road y pipe can it still pass?
Old Mar 15, 2005 | 03:10 PM
  #9  
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Re: Mac LT's

yes, i have that same exact set but i have the MAC high flow cat as well. Very nice headers... They are a little generic in the fit, make sure when u put them on to definitely tuck all plug wires out of the way... cuz they get very close to the headers
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