Anyone ever experimented with trying to quieten their Stainless Exhaust System. At last I am gonna get the exhaust on my car made up, its gonna be 3.5 inch bore from the Cats to a Y-Pipe going to a single silencer which is 2 inch straight through.

I dont want it to be really noisey, anyone ever put baffle's in the system pipework, if so what size, etc.

 

Cheers John Crisp

Anyone ever experimented with trying to quieten their Stainless Exhaust System. At last I am gonna get the exhaust on my car made up, its gonna be 3.5 inch bore from the Cats to a Y-Pipe going to a single silencer which is 2 inch straight through.

I dont want it to be really noisey, anyone ever put baffle's in the system pipework, if so what size, etc.

 

Cheers John Crisp

 

designed and made one for my scoob ( well my welders did, have own engineering company) anyway

 

3" pipe from turbo straight to muffler, muffler was 6" pipe.

 

muffler capped at both ends with 3" holes at each end before end cap went on

 

3" perforated pipe was fitted inside muffler from cap to cap no bends straight through the middle, the perforated pipe was then wrapped in stainless steel wire wool, pack the muffler as tight as u can with this, then cap end, fully welded, welded to 3" pipe, then the 5" slash cut rear pipe went onto back of muffler

 

this thing wasnt too loud, sounded ****in awsome, and the increase in power was amazing

 

and the flaming when turbo kicked in even better

 

do a search for exhaust theory & exhaust cherry bomb

Keep the standard centre box/resonator and you can get away without any backboxes, not too loud just nice sound.

u cant beat flames out the back specially in the dark u over take look in mirror and see car u past crashing into bushes in fright

 

 

lollolololo;

Mines is as you describe with huge 3.5" pipes that seems to be tough to work with as its all welded sections. A bit louder than I'd like and when it was tried cats off it was way too load.

Flames out the back sounds good to me, I have flanges to fit directly onto the cats so with me going to a single silencer system I dont think keeping the resenator will make that much difference, also Willie mines all welded sections but I was thinking of maybee putting a couple of metal discs at certain points of maybee 3.5 inch diameter with a centre 1.5inch hole cut in it and maybee loads of smaller holes drilled in the uncut section, maybee this is a waste of time but to be honest I am not really looking for performance gain, only to make the car have a kinda outrageous look, but with a nice tone from the exhaust, anyone else experienced this.

 

Cheers for the replies....John Crisp

OOPS Willie I was thinking of gutting the cats, I still dont know whether to or not as my emission test at MOT was kinda dodgy.

 

Cheers John Crisp