Roush axle back on track

[JohnnyFive]

Picked up my 67 plate GT two weeks ago and absolutely love it, apart from the noise. I've been somewhat spoilt by my last car (V8 Vantage with prodrive cats) and the Mustang is really lacking in the noise department right now.

Has anyone fitted the Roush axle back to their S550 and used it on track?

I love the sound of it but need it to pass noise limits for track days, the Aston wouldn't without the bypass permanently closed.

Ideally I'd got for the active exhaust, but at five times the price, it is sort of hard to justify!

[bridgdav]

Try this.. MRT H pipe and Roush axle back..

Video of me climbing through the Esses at Virginia international speedway last month.
Drive by at the Old Oak Tree turn.

https://youtu.be/gn4s6Fv73-Q

Drive by on pit straight

https://youtu.be/Ag7nnWYWvVg



@ 3,000 rpm


@ tickover

Edited by bridgdav on Thursday 21st September 00:26

[JohnnyFive]

Waaaaaay too loud.

Noise limits are pretty strict over here.

I am hoping that keeping the factory resonator will help but looking at those numbers, it'll have a big job to do!

The tracks I visit most often are:
Oulton Park - 105dB at about 4900rpm
Bedford - 101dB (seems very unlikely!)

[JohnnyFive]

Anyone local to Warwickshire with any type of aftermarket axle-back or cat-back on a V8 S550 willing to let me pop round with an SPL meter and have a listen?

[jason900]

JohnnyFive said:

Anyone local to Warwickshire with any type of aftermarket axle-back or cat-back on a V8 S550 willing to let me pop round with an SPL meter and have a listen?

Mate - email me your details/location to [e-mail] - ill see if I can get someone local to you to pop round...

Jason