ok which of these do you think is the best?

im talking about the backbox, deresonated centre section and decat pipe

i currently have a TSL group N backbox and deciding which way to jump...

either to get the TSL deresonated centre section and decat pipe to go with it...

or go for the Hayward & Scott system instead??

how do they compare? in both performance and 'burble'?

cheers

(p.s, the car in question for it to be fitted to is a 2006 STI type UK non-PPP)

 

I've experienced both. Had a H&S which was on a 97 Sport and alone raised power to 131BHP. On my 2000 Turbo I have a TSL. Sound wise in my opinion Hayward and Scott sound a LOT nicer and are noticeably louder but not OTT just exaggerates the rumble. The next time im in the market without doubt I will be choosing H&S again. The TSL isn't bad but IMO there's not much sound in it unless you plant it to the floor... and then its not often you can leave it down long enough to enjoy.