Wanted - back boxes for a GT aftermarket or 4.7

[modelT]

Hi all,
I am after something to demuzzle my 4.2. I have a larini x pipe already, but want something better than the 4.2’s very quiet back boxes. Back boxes from a 4.7 with valves would do or some after market system.
After buying lots of parts this month, my budget is not huge so no the £2k LarinI system on eBay looks nice, but not the price! Some breakers have boxes for £1k, but that is too much for me too.
kind regards,
Bob
near Stonehenge, Salisbury

 

[Cyclone1]

Try Paul at PCW, he’ll modify your existing back boxes to enhance the sound. I can recommend him.

Login • Instagram

Welcome back to Instagram. Sign in to check out what your friends, family & interests have been capturing & sharing around the world.

instagram.com

 

[modelT]

Thanks very much, you started me on a Google search that led to some posts on modding back boxes. I had thought of this last week as I have a TIG welder and am not afraid to use it (especially if it saves me money). Ideally in the future I will get some 4.7 boxes as they will be better tuned, but in the meantime I will cut the valves out of mine as i have found that 4.2s have valves inside the box that just work on exhaust pressure. This explains my raspy something loose exhaust note as apparently the springs can break and make annoying rattles etc.

 

[Ebenezer]

Please record before and after sound a
and what you find in the back boxes!
Eb