Weedo if you want it louder its not the pipe work as such but selection of the muffler,bending type and type of matereial of pipe work eg stainless steel :whistling.
I Would go either Magnaflow - Built in U.S.A or Lukey - Built in Australia
1. Magnaflow Muffler High Flow 409 Stainless Steel - like mine but in 2.5"
2. Lukey Ultra flow 2.5" Stainless Steel
Go Stainless Last Longer and Looks nicer, i know its under the car but eh :thumbsup:
Lukey Ultra Flow Muffler
The Lukey Ultra Flo muffler features a straight-through design for ultimate flow, power and performance. Its design is ideal for the driver who wants performance as well as the famous Lukey growl.
Available in two variations - polished Stainless Steel or Aluminum Coated Mild Steel (ACMS).
The high chromium polished Stainless Steel Lukey Ultra Flo has stainless steel wool wrapped around the perforated tube and is packed with high temp Continuous Roving Fibreglass (CRF) for maximum sound control.
The ACMS Lukey Ultra Flo is constructed with a 1.2mm ACMS shell and features a 409 Stainless Steel mandrel-bent continuous perforated tube. It's also packed with hi-temp Continuous Roving Fibreglass (CRF) for maximum sound control.
The Stainless Steel Lukey Ultra Flo is backed by a 5-year warranty, and the ACMS Lukey Ultra Flo is backed by a 2-year warranty.
www.lukey.com.au