Hi am looking to get either of the above, am looking for good power but do not want the noise. Can anyone comment on there experiences between the two, noise and power wise ?
Car is a 04 WRX and will be running about 320hp, hybrid turbo etc.

Many thanks

 

i have the 3.5" APS system and still find it not bad compared to a lot of other peoples cars. With the bung out it still passes most trackday noise tests, with the bung in its relatively civilised.

The smaller systems will be better still, they are a very good 2nd hand buy, but pricey new. Needless to say i got mine 2nd hand...was buggered if i was going to pay 1100 for a turbo back system!

 

£1100 ive been quoted £645 for a 3", must of come down on price .

 

lots of money that! get a Revolution system and be just as happy for less than half the price

 

1100 was for the 3.5" the others were cheaper anyway but 645 seems a good price for one....i agree with scoobysmiff tho, the revolution one seems to be highly recommended and not too loud too