Fitting a TSL Group N Catback Exhaust Backbox

The TSL Group N exhaust for the Subaru Impreza is quite a revered choice when it comes to ‘standard-looking’ backbox options. Not too flashy, and not as antisocial as something like a Nur Spec or Afterburner exhaust. Very similar in size and shape to the Prodrive backbox offered with the PPP (Prodrive Performance Pack), it’s quite a common choice when looking for top quality, subtle exhaust modifications. Although more than happy with the sound and looks of my existing Prodrive backbox, I’d heard great things about the TLS Group N and wanted to try it out. Unfortunately it’s no...

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