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Old Mar 23, 2012 | 07:42 PM
  #16  
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Originally Posted by ISFROMHELL
Apparently i was wrong thank god i didn't buy the turbos or any parts yet. i thank you guys for let me know about this and stopping me from dropping a lot of money on something that has a good chance of not working or being worth the hp/ cost factor. So really the only performance upgrades you can do are intake and exhaust on is250.
Pretty much.. intake, exhaust and headers
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Old Mar 23, 2012 | 07:45 PM
  #17  
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It can be done...don't anyone tell you otherwise. Problem is, for the cost of this kit and everything you'll need to purchase (and labor to boot) in order to make reliable and safe you could probably get yourself into an ISF.
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Old Mar 23, 2012 | 07:49 PM
  #18  
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well thats annoying lol does anyone know if the borla cat back for the is350 will fit a is250
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Old Mar 23, 2012 | 07:54 PM
  #19  
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Thanks gville350 I think I am just going to stay away from tt kits for this car for a while I might invest into later on when I am done with college tho
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Old Mar 23, 2012 | 07:56 PM
  #20  
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Originally Posted by ISFROMHELL
well thats annoying lol does anyone know if the borla cat back for the is350 will fit a is250
yes it will
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Old Mar 23, 2012 | 08:06 PM
  #21  
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thanks hoovey2411
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Old Mar 23, 2012 | 08:41 PM
  #22  
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Originally Posted by ISFROMHELL
Apparently i was wrong thank god i didn't buy the turbos or any parts yet. i thank you guys for let me know about this and stopping me from dropping a lot of money on something that has a good chance of not working or being worth the hp/ cost factor. So really the only performance upgrades you can do are intake and exhaust on is250.
Yeah, the cheapest option to make a 250 faster, by far, is to trade it in for a 350.

It's about a $4000 price difference for a gain of 102 hp.

Versus the supercharger kits (or trying to cobble your own turbo system together from generic parts) for more money, less reliability, and about half that gain.

For bolt ons all the "full" exhausts run $1200-1500 and add about 8-10 hp... headers are another grand coated and installed with cats for another 10-15 hp... then $125-400 for an intake for 5 hp... so that'll run you around $2500 for roughly 25-30 hp... making the 102 hp for 4k by getting a 350 a steal.
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Old Mar 23, 2012 | 08:50 PM
  #23  
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Originally Posted by Kurtz
Yeah, the cheapest option to make a 250 faster, by far, is to trade it in for a 350.

It's about a $4000 price difference for a gain of 102 hp.

Versus the supercharger kits (or trying to cobble your own turbo system together from generic parts) for more money, less reliability, and about half that gain.

For bolt ons all the "full" exhausts run $1200-1500 and add about 8-10 hp... headers are another grand coated and installed with cats for another 10-15 hp... then $125-400 for an intake for 5 hp... so that'll run you around $2500 for roughly 25-30 hp... making the 102 hp for 4k by getting a 350 a steal.
Thanks Kurtz i am going to look into a 350 my IS only has 33k miles and it's an 09 so it still has a good trade in value
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