exhaust

[daren parker]

hi just been to a local garage who told me they could wheld to ss pipes in the silencer .is this what offords do?. is the wodding kept in side and is there any bhp loss as the back presure is reduced daren

[bigdods]

Its usually called sleeving, what they actually do is cut out the baffles inside the silencer and weld in solid s/s pipes instead. I had mine done a while back and got them to put the wadding back in to reduce the resonance (and it seems to have worked). Not quite the same as Offords, they put in some small silencers (usually called cherry bombs ) which make the exhaust tone a tad quieter and a bit deeper.

My sleeved 450 with cats still in place does 121db at 6k revs.

Doesnt make any difference to the power , you only have to think about flow cones and such if you remove the pre-cats.

Just make sure the place you get to do it really know what they are doing, I have heard of the welded in pipes falling out or failing if not done properly.