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Posted

After a 3inch track day exhaust that passes noise test 103db but still needs to sound good got a nurspec r and just too much for track must be 3 inch

  • Like 1
Posted

Drive by or static limit ? Www.cobrasport.co.uk one idea. I have the turbo back sports cat trackday friendly system. static is 96db not sure what it is when driving by though. Other people say it's sounds good ! It's got a twin resonated centre

Posted

Yer static bud i know someone said the miltek with one resonated section passed static i had a toyo sports on before was loud and still passed at cadwell

Posted

I'll message fonzey for you tomorrow see whay he did. If anything I remember he had to short shift because it was too loud [emoji35] not sure if he had swapped his yet though mate I know he had to goto the states on work shortly after not been back long.

Posted

Stuck the bung in my exhaust when I had a long journey to do last year .

It Sounded too quiet and lost 0.4 bar of boost due to the restriction ......

First lay by I saw I put it back in the boot where all bungs belong [emoji4]

Posted

Yer i do have bung but as savage said restricts the system i regret selling my hks silent hipower last year now

Posted

i use this item : ;)

apexi active tail silencer 

when the engine exceed 3500rpm , the spring inside it opens and the exhaust back open / empty :ph34r:

 

 

sorry for my bad english :(

Posted

I have been keeping an eye out not been on the pc yet to speak with fonzey yet either job for later lol

Posted

Not a problem mate !Removed! hectic day so far looking forward to getting some vodka down this exceptionally dry neck later [emoji9]

Posted

The two "go-to" choices are:

 

Revolution 3" System: http://www.revolution247.com/catalogue/shop-by-category-exhausts-revolution-exhausts

 

Or The Cobra Sports Trackday system: http://www.cobrasport.com/index.php/cobra-sport-exhaust-products/subaru/impreza/subaru-impreza-wrx-sti-17/subaru-impreza-turbo-track-day-turbo-back-system-with-de-cat.html

 

I've been taking my prodrive backbox in the boot, so if I get flagged - it's two bolts to swap out to that (its very quiet). Thinking of bumping up to the Revolution system though later in the year.

  • Like 1
Posted

Might have seen it 

http://www.scoobynet.com/full-cars-breaking-for-spares-438/1019844-big-spec-bugeye-prodrive-sti-breaking-2-1-build-sc40billet-alctec-whiteline-bcs-more.html

 

 

cobra track friendly full 3inch turbo back system with full de catted down pipe/centre section and back box sounds great without being to loud passes most track day noise tests with any suppressors needed etc does have small dent in pipe doesn't affect system or anything but it is there £250

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