Downpipe and Air Filter on MY03 UK STi PPP
08 December 2004, 11:27 PM
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Downpipe and Air Filter on MY03 UK STi PPP
Is this a mod worth doing if dealer agrees to keep warranty? For example decat downpipe and HKS or Blitz power filter?
10 December 2004, 12:09 PM
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Jim
That'll be why a decatted WR1 produced less boost than a number of 'std' WR1s and what boost it did produce started 300 rpm higher up the rev range then
It did overboost as well though
Alan
Decatting an STi PPP is not the same as decatting a std car. The catalyst we use is not restrictive in any way and the design of the downpipe means that it flows better than a straight pipe with the same header design. Neither mod will retain your warranty as that is not something the dealer has much control over. In the unlikely event of a warranty claim, Subaru WILL inspect the car.
Mike
That'll be why a decatted WR1 produced less boost than a number of 'std' WR1s and what boost it did produce started 300 rpm higher up the rev range then
It did overboost as well though Alan
Decatting an STi PPP is not the same as decatting a std car. The catalyst we use is not restrictive in any way and the design of the downpipe means that it flows better than a straight pipe with the same header design. Neither mod will retain your warranty as that is not something the dealer has much control over. In the unlikely event of a warranty claim, Subaru WILL inspect the car.
Mike
10 December 2004, 01:52 PM
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I think Mike has said it all
The free flowing cat is a blessing really, the only way your going to get more power is from a remap, but then that will invalidate your warranty.....
I also believe that Prodrive have done tests on panel filters and found no real gains with them on the PPP'd cars.
Tony
The free flowing cat is a blessing really, the only way your going to get more power is from a remap, but then that will invalidate your warranty.....
I also believe that Prodrive have done tests on panel filters and found no real gains with them on the PPP'd cars.
Tony
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