Originally Posted by HAASPORT
This silencer (aka fun killer) has got to go!
I removed it today just to scope it out. The ends are sonically welded so removing the internals is not an option.
The internal structure is very cool (similar to the inside of a muffler), but it takes all the fun out of hearing the turbo do its thing.
The unit is attached to the frame due to weight alone via a removable frame / cage. The darn thing is heavier than I expected...all due to the internals.
If a straight through pipe is added, the existing frame / cage could be used to secure it.
The inlet (turbo in) side is 2 3/4 and the outlet (exit to intercooler) is 2 1/8. Both ends have a 1 1/8 lip and the overall length is 12 1/4.
I'll be working on a solution today for a bit.
Is the pipe not made of plastic? Even if it's not, couldn't the pipe internals be bored out at a machine shop? That way you could keep an OEM exterior look. May be important to some people
And maybe on a more technical note, there are a lot involved in turbo response and designing intercooler systems. Change of pipe sizing, types of intercoolers, how many 90 degree bends, all this stuff has an effect on the performance of the turbo system. I can't IMAGINE that a muffler on the output of a turbo is good. Obviously the engineers signed off that it wasn't DETRIMENTAL to the overall performance and having a quieter vehicle was of greater value than maximizing performance.
For me, there are zero drawbacks to boring out the silencer.