Recently installed this on my Viggen which already had the version2 downpipe. Not really much volume change but the sound is definately deeper and has a lower hum when hard on the throttle making it harder to hear but better sounding in my opinion.

I chose this exhaust mainly for the purpose of adding a catback to my downpipe which finished off my free flowing exhaust from turbo to exhaust tip allowing me to safely tune my car to higher levels. I also preferred the tip on this exhaust which looks similar to the stock Viggen but better.

If you're looking for more noise from your exhaust this isn't your best option but the quality/appearance, fit and performance increase made it a perfect choice for me.

Rating: [5 of 5 Stars!]