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90 Coupe Deville
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2 Posts
Discussion Starter · #1 ·
From what ive seen there are no companies that make aftermarket kits for a 1990 deville i would like to put on an intake and exhaust
i would like to make the mpg go up a lil but if i just made it louder that would be ok as well
I can install stuff but i really dont understand the functions of the different engine parts so without a kit im lost
i was hoping somebody could direct me to a kit or maybe the specific parts i could use air filters muffler etc. so im not doing damage
 

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Registered
90 Coupe Deville
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2 Posts
Discussion Starter · #2 ·
i forgot to add that its the 4.5 and that im open to more than just intake and exhaust suggestions any suggestions would be helpful
 

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1990 Fleetwood
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106 Posts
Put a K&N air filter in it and leave the rest alone. For its age it is a pretty sophisticated drive train. The OEM stuff seems to work best. Keep it well tuned and maintained and stock.
 

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Super Moderator
2010 DTS
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88,163 Posts
A K & N filter won't improve your mileage one bit. All it will do is lighten your wallet and pass more dirt through it.
 

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Administrator
2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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73,500 Posts
^^^^ Yeah, that.

:lildevil: I like WIX filters.......
 
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