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M40 exhaust
Posted: Sun Dec 20, 2009 10:07 pm
by Greener
Hi all, just on the off chance has anyone ran a 318 without rear box, ie. straight through system with standard centre box. This would be used for track use ive heard rear box makes no difference as standard centre has a cone baffle. Any opinions appreciated.
Re: M40 exhaust
Posted: Sun Dec 20, 2009 10:11 pm
by SteMarsden
Hi,
Not sure whether you would pass the noise test (95dB to 103dB) with just a centre box fitted..... Im on a real budget in PBMW and am planning to use a standard exhaust downpipe, centre box and fabricated rear box made from a straight through motorbike silencer (FOC!)...
Re: M40 exhaust
Posted: Sun Dec 20, 2009 10:13 pm
by Brianmoooore
I frequently run several M40s will no rear box, and I can assure you there is a considerable difference in sound level!
Re: M40 exhaust
Posted: Sun Dec 20, 2009 10:40 pm
by Greener
Brian any noticiable increases/decreases in torque power?
Re: M40 exhaust
Posted: Sun Dec 20, 2009 10:45 pm
by Brianmoooore
Difficult to tell when I'm only moving them about 50 yards from my storage shed to my workshop!