2.2 SRi single output to twin output (direct) conversion

**waqas** · 18th January 2010, 00:09

Hi everybody,

I'm fairly new to this forum but I was wondering if anyone could help me out with something. I'm going to view a car tomorrow, its a Vectra-C 2003 2.2 SRi but it has one exhaust at the back.

My question is, if I do buy it, could I modify/convert it to a twin exhaust like th 2.2. direct SRI? Could anybody recommend me any company that can do that for a good price + increase in performance?

Any help would be much appreciated.

Kindest regards,

Waqas (an absolute newbie)

**mhvcbv** · 18th January 2010, 00:13

hi m8
yes you can, i did my little 1.8 into dual sri and now got the irmy quad.

**Big Sig** · 18th January 2010, 00:14

You can use the std vauxhall stuff or go stainless for a nicer sound

**waqas** · 18th January 2010, 00:34

cheers, mhvcbv, much appreciated.

Big Sig, whats the std vauxhall stuff?

**SRIRob** · 18th January 2010, 00:35

Hi fella yes its no problem although you will not gain any power from the twin set up it does look so much better Ive only just done mine

Rear valance new from Vaux dealer £54.00
Read RHS back box Bought from a fellow club member £70.00 Brand new
Pipecraft in Basildon for the y piece conversion and fitting £80.00 01268285535 Dean does a fantastic job great guy
heres a picture of mine done

**waqas** · 18th January 2010, 00:41

Cheers, Rob....

that looks like a mint job.

Quick question, if i did want a twi output exhaust system which gave me bhp increase, what kind of set up and parts should i be looking for?

thanks.

waqas

**rushy** · 18th January 2010, 01:36

I've done the exact conversion your on about mate, 2.2 single to double. All I did was get a 2.0T twin system, cut it before the Y and clamp it over my existing centre section. Bobs your uncle, job done, cost me £60.

**SRIRob** · 18th January 2010, 01:44

Would think you would need to go for 2 custom made non restrictive boxes bigger pipe work and a decat speak to dean at pipecraft he will design something for you

**rushy** · 18th January 2010, 02:10

Originally Posted by SRIRob

Would think you would need to go for 2 custom made non restrictive boxes bigger pipe work and a decat speak to dean at pipecraft he will design something for you

Not really a good idea on a n/a petrol, you still need back pressure, not a problem on a Turbo though, plus a decat on a 2.2 will just send the car into limp.