removing centre box 35i

[dave1968]

if i remove centre box what rear silencer can i use any info

[DEANO3528]

Either a 90, RR single rear or similar, cut and shut like this:



with the original single rear in place but turned to come out the side:



And it sounds nice too. There is an audio clip in the q's and comment section and here's a quick vid.



And the bang is a bird scarer not the motor! :D

[dave1968]

whats the small silencer off are you replacing it rather than the big standard one or can a straight through pipe be put there and silencer on the back thanks dave

[dave1968]

so i need a exhaust off a diesel 90

[DEANO3528]

Sorry only just passing by again!

IIRC the front one is a 90 rear (doesn't matter which fuel as they are the same). The rear is the original item but for a single system. I don't see the point in paying so much more for a twin pipe system when a single system with straight through boxes works at least as well.
The rear only needs a slight kink to point it out the side.
I had a single rear exit pipe on my pick-up and it was a bit noisy, but the missus would opt to take that to work rather than the posh Vogue SE every time!

[dave1968]

thanks mate ill give it a go this week

[Range Rover Blues]

IIRC the twin pipe system was designed to allow better gas flow and release a few extra horses, but the best sytem is the 3.9 EFi, biggest of the lot, with good gas flow if pre-cat and not much between that and my Double S sports pipe.

For a cheapy system ours had a TDI centre box (straight through unlike the EFi one) and no back boc, just the pipe, sounded great when the engine was on-song but terrible when it started to do valves.

[dave1968]

theres a 3.9 being broke in local scrapyard just got tow bar off it it had stainless exhaust system on it but thats gone will keep my eyes open for a 3.9 system why did valves go thanks dave.

[Range Rover Blues]

I think a combination of too high a compression ratio and lack of lubrication when on LPG, that said they always seemd to burn out after a hard drive on petrol.

Doesn't do it any more since I rebuilt the heads.

P.S. one thing you might find if using a 3.9 system without modifying is that the gearbox crossmemeber is different.