Subaru Impreza station wagon
15 Answers
You could straight pipe it back from the cat but you won't get very far until you get a ticket. Don't eliminate any O2 sensors.
TheSubaruGuruBoston answered 4 years ago
Yes...but why? You won't improve performance, given the big 4's torque curve and lack of VVT.
Probably just a blat or roar.
Thank you’s for your help much appreciated
Why no rumble? So would I be wasting my time installing the invidia cat back?
Why would there be no rumble? Can you tell me the full story please?
TheSubaruGuruBoston answered 4 years ago
Modest flat-fours don't exude a preponderance of low frequencies. This tenor rather than basso.
TheSubaruGuruBoston answered 4 years ago
As in doo-wop (50's kids sound) or modern budget sci-fi soundtrack?
Just got the invidia cat back racing exhaust installed in my non turbo & have got the rumble
(50s kids sound) it is doo-wop shooby do whop wob wob wob I’ve the the rumble you’re not much of a Subaru guru after all