Extra lines, extra piping and vacuum lines running under the vehicle to increase complexity??
Why not just grab the biggest resonator/muffler you can stuff underneath, run a cat and run a rear box in 3" variant?? You will get the flow of a 3" with the noise of a HKS 2.25" catback. Yeah you may have the extra weight of the resonantor, but on a street vehicle the additional 5-8 lbs is neglible at best and would'nt even show on any dyno (a temp swing of 10-20 degree would be much more aparent for instance).
Never liked the idea of running these just for the reasons you mentioned (sealing, failure of electrical components (if electrical), the valve sticking open/closed, the need to run extra lines, wires, etc. the list goes on as to why I would IMHO not recommend this setup).
Why not just grab the biggest resonator/muffler you can stuff underneath, run a cat and run a rear box in 3" variant?? You will get the flow of a 3" with the noise of a HKS 2.25" catback. Yeah you may have the extra weight of the resonantor, but on a street vehicle the additional 5-8 lbs is neglible at best and would'nt even show on any dyno (a temp swing of 10-20 degree would be much more aparent for instance).
Never liked the idea of running these just for the reasons you mentioned (sealing, failure of electrical components (if electrical), the valve sticking open/closed, the need to run extra lines, wires, etc. the list goes on as to why I would IMHO not recommend this setup).
Last edited by Boostlee
on 2015-02-25
at 20-31-25.