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      01-26-2015, 12:13 PM   #1
Seattle135is
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Feedback/question after K&N install...

I installed K&N air filters on Saturday + did the charcoal filter delete – although the car has only ~500 miles, the up changes seem to have a more pronounced sound – a more pronounced back-fire sound on harder acceleration between changes – just as addicting as the blipping on down shifts! I haven’t heard more sound from the turbos, but this may change after the 1200 service, when I can really crank it up…
So, my question -- I know the engine is 'breathing' better, but why the louder back-fire sound from the exhaust between the upshifts?
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      02-19-2015, 08:25 PM   #2
Rx7andy
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May be there is an increase in air intake and causing the ECU to give more fuel and running richer than before!
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      02-19-2015, 08:34 PM   #3
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I did BMC filters and charcoal delete today. Haven't heard any backfiring. I hear more spooling. Whistle sounding. OEM exhaust? Manual or DCT?
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