Hello- Just recieved my britpart 'sports' exhaust from Paddocks (excellent service btw!!) and apart from the straight through middle pipe, am buggered if i can tell the difference between the 'sports' rear section and the old standard one? Is it a bigger bore or summat? Am not complainin for £35 + Vat mind- was a bargain either way.. but anyone know if the rear sections any different?