Exhaust Mod

[jordak]

  ugy said:

  vik351 said:

  dswiders said:

  DBOSS said:

Punch it out  

<{POST_SNAPBACK}>

<{POST_SNAPBACK}>

And get sprung...

vik...$10,000.00 fine aint it over there

<{POST_SNAPBACK}>

I'm in the land of the long white cloud and we have no law against not having a cat.

Would it be worth punching it, also would I have to get a retune?

Cheers

<{POST_SNAPBACK}>

If legalities are'nt a problem you may want to consider just replacing the cat with a section of pipework and leave your stock cat intact in case you want to return it to stock.

Should be able to get an exhaust shop to throw something together for less than $50.

[blueboost]

  jordak said:

  ugy said:

  vik351 said:

  dswiders said:

  DBOSS said:

Punch it out  

<{POST_SNAPBACK}>

<{POST_SNAPBACK}>

And get sprung...

vik...$10,000.00 fine aint it over there

<{POST_SNAPBACK}>

I'm in the land of the long white cloud and we have no law against not having a cat.

Would it be worth punching it, also would I have to get a retune?

Cheers

<{POST_SNAPBACK}>

If legalities are'nt a problem you may want to consider just replacing the cat with a section of pipework and leave your stock cat intact in case you want to return it to stock.

Should be able to get an exhaust shop to throw something together for less than $50.

<{POST_SNAPBACK}>

Good thinking, that is the go, because the back of the cat does no merge very good

[ugy]

  blueboost said:

  jordak said:

  ugy said:

  vik351 said:

  dswiders said:

  DBOSS said:

Punch it out  

<{POST_SNAPBACK}>

<{POST_SNAPBACK}>

And get sprung...

vik...$10,000.00 fine aint it over there

<{POST_SNAPBACK}>

I'm in the land of the long white cloud and we have no law against not having a cat.

Would it be worth punching it, also would I have to get a retune?

Cheers

<{POST_SNAPBACK}>

If legalities are'nt a problem you may want to consider just replacing the cat with a section of pipework and leave your stock cat intact in case you want to return it to stock.

Should be able to get an exhaust shop to throw something together for less than $50.

<{POST_SNAPBACK}>

Good thinking, that is the go, because the back of the cat does no merge very good

<{POST_SNAPBACK}>

Yeah bang on never thought of that.

Thanks

[XR6ISM]

Yup Yup Ugy, the cat is a major restriction in the system. Id suggest replacing it with a hi flow car....Im currently running the 4" SMB Cat @ 300+ rwkw....the cat does a great job. I have however also changed my dump pipe to a split pipe system, but will once again change that soon to a 4" pipe.

[galconn]

I was faced with a similar dilemma, very little info around to make an informed decision. Finally took the gamble and fitted the John Bowe signature Stainless exhaust (cat back) and then replaced the factory cat with a 3 inch inlet and outlet (4 inch diam metal catalyst) 'Metal' cat supplied by PSIPRODUCTS PTY LTD. The unit is about 11 inches long and all stailess steel including the catalyst at 200 cell/sq inch. Also decided to have a heat shield fitted between chassis and exhaust pipe leaving air gag between chassis. The shield starts at the turbo pipe to first resilient exhaust mount about 75cm long and replaces factory lagging. All up cost ie labour and parts $800. The new cat increased power by 5KW. The exhaust pipe was reduced in two stages from 3 inch cat outlet to 2 1/2 to standard 2 1/4 after Y junction. Hope this info is of some use.

[XR6ISM]

  galconn said:

I was faced with a similar dilemma, very little info around to make an informed decision.  Finally took the gamble and fitted the John Bowe signature Stainless  exhaust (cat back) and then replaced the factory cat with a 3 inch inlet and outlet (4 inch diam metal catalyst) 'Metal' cat supplied by PSIPRODUCTS PTY LTD.  The unit is about 11 inches long and all stailess steel including the catalyst at 200 cell/sq inch.  Also decided to have a heat shield fitted between chassis and exhaust pipe leaving air gag between chassis.  The shield starts at the turbo pipe to first resilient exhaust mount about 75cm long  and replaces factory lagging.  All up cost ie labour and parts $800.  The new cat increased power by 5KW.  The exhaust pipe was reduced in two stages from 3 inch cat outlet to 2 1/2 to standard 2 1/4 after Y junction.  Hope this info is of some use.

<{POST_SNAPBACK}>

Mmmm that still sounds restrictive, I went from the std cat to a high flow car with a 3" exhaust (single high flow muffler) and gained approx 14rwkw.