is there anyway of getting a deeper exhaust note from a standard my06 sti back box ie de-cat, only reason i ask is because i like the standard sti back box and dont really want to change it

 

Get rid along with the centre resonator section too!

TSL straight pipe & a decent backbox....

Burble returns!!

 

will changing these effect the warrenty?

 

Will only affect the warranty on the exhaust, at least that's what I have been told by my main dealer but may be worth checking with yours. I opted for a Scooby parts de-resonator and a Prodrive backbox, sounds much better on my WRX.

 

Or Blitz Nur Spec R centre section and backbox, and looooot of burble is back!

 

im not really after anythin as loud as blitz just somethin that has a nice burble to it

 

Try a straight through centre section (resonator) i friend has done this with a prodrive backbox and it sounds very nice without being to loud