70mm Valved Track System

Okaaaaay - so UK trackday enthusiasts have to meet the toughest noise/db limits in the World.

I promised I wouldn't use an exhaust valve on a Track system but I can understand the attraction. This system weighs 15.5Kgs with all the extra pipework and the increase in physical size of the silencer itself to accommodate those all-important resonance chambers. There are TWO totally separate exhaust paths through the silencer. It is a complete PITA to build - but if it were easy, anyone could do it!

Track use is abuse. I decided to move the exhaust valve to a less vulnerable position - AFTER the catalyser AND the silencer. Some energy/heat removed from the exhaust gases. i.e. The way all the supercars have it. The vacuum hard-pipe is easily re-routed to the right hand side of the exhaust bay. Placing a rotating mechanical device millimeters from the 800C. exhaust gas-flow of the catalyser on a supercharged 3.5Ltr V6 is madness - might as well try to mitigate those stresses as much as possible!

THIS IS A STRAIGHT-THRU PERFORMANCE EXHAUST - NO POWER LOSS.

Feedback said the system is TOO QUIET - valve 'open' OR 'closed'! So, I re-designed it. Now, when the exhaust valve is 'closed' (or at low revs) - it's pretty damned LOUD! When the exhaust valve is 'open' it is approx 95dbs - fit the tailpipe add-on silencers and you're down to approx 93dbs.

Anything else? I'm not charging you 4,200 :00GBP + vat for a noise-compliant exhaust!

Many customers telling me they have fitted an after-market tune and asking if I can build this system to suit a 63.5mm or 76mm slip-on from the tuner's catalyser. Yes, of course I can!

LEAD TIME ON ORDER - 3 WEEKS.

EXPORT PRICE (No VAT charge): 1665 :00GBP