RobGTP 
If i get the 2.5 inch zzp downpipe with the magnaflow high perf cat what would this affect. How would it affect the gas mileage and how the car sounds? any thoughts of how much hp this would really add. The car is just stock. Thanks
|
|
03-26-2011
If i get the 2.5 inch zzp downpipe with the magnaflow high perf cat what would this affect. How would it affect the gas mileage and how the car sounds? any thoughts of how much hp this would really add. The car is just stock. Thanks
03-26-2011
Not enough to make it worth it. Get headers instead.
Originally Posted by W-Body Store
03-26-2011
get atleast a 3 inch, The 2.5's for N/a cars
http://www.streetfire.net/video/2001...ynp_208097.htm
03-27-2011
Sound wont change unless you change the mufflers. Mileage wont be hurt either. 2.5" is no good for supercharged, get the 3" at least. But headers would be best.
03-27-2011
My sound changed a little, it got a little louder, but it was good. no change in gas mileage. It will set a cat inefficiency code unless you get it tuned out.
______________________SMGPFC #99_______________________
03-28-2011
This except I don't see why he would throw a cat code....
03-28-2011
Before even with the HFC's the PCM thinks there isn't a converter because they flow so well
03-28-2011
when i had the 3 i noticed a small increase in MPG...
| « Previous Thread | Next Thread » |
| Tags for this Thread |
| Bookmarks |
Bookmarks |
