Upgrading Exhaust

[Simmo1985]

Hi all,

I've got a R33 S2 and I'm looking to upgrade my exhaust to either a 3" or 3.5" turbo back exhaust.

I've apparently already got a HKS cat back exhaust, not 100% sure on size however. (only got the car Monday night).

What's my best bet? Should I just go to an exhaust shop and see what they can do for me? Should I keep the HKS catback and mix in other parts or would it be better to order a certain full TBE package from somewhere? I'm happy to support SAU suppliers if this is the case.

I'm in Brisbane if that helps.

[SLIPPERY]

whats wrong with the HKS?

Maybe just add a decent front pipe to the mix and thatll do

Stick with 3 inch too if youre not planning on running more than 300rwkw

[RBwhatever]

Add a high flow cat to that and you'll be set.

3" Dump/Front Pipe + 3" or bigger High Flow Cat + 3" HKS Cat-back= 3" Turbo-back Exhaust

Edited August 29, 2007 by KeyMaker

[ZENNON]

whats wrong with the HKS?

Maybe just add a decent front pipe to the mix and thatll do

Stick with 3 inch too if youre not planning on running more than 300rwkw

+1

as for not knowing size... measure it maybe?

[SLIPPERY]

HKS wouldnt even make something sub-3 inch would they?

[RBwhatever]

Just Jap can help you out for a very reasonable price.

[RBwhatever]

HKS wouldnt even make something sub-3 inch would they?

Doubt they would. Unless it was for NA. Anything turbo would be 3" minimum.

[Simmo1985]

Thanks for the replies.

Looking at the Just Jap website, would this combo be a good option to use with my current HKS Catback.

JJR Split Dump & Front Pipe - Nissan Skyline R33 GTS-T Price: $269

High Flow Design - 3 inch Stainless Steel

X-Force 3 Inch High Flow Cat - Nissan Skyline R33 Price: $199

Flanged - Flows up to 570 CFM

Would such a system be legal - db wise?

Edited August 29, 2007 by Simmo1985

[Simmo1985]

@SLIPPERY:

When I was looking at exhausts for my WRX I was told that a lot weren't interchangeable. Wasn't sure if this would be the case with the HKS.

[RBwhatever]

Thanks for the replies.

Looking at the Just Jap website, would this combo be a good option to use with my current HKS Catback.

JJR Split Dump & Front Pipe - Nissan Skyline R33 GTS-T Price: $269

High Flow Design - 3 inch Stainless Steel

X-Force 3 Inch High Flow Cat - Nissan Skyline R33 Price: $199

Flanged - Flows up to 570 CFM

Would such a system be legal - db wise?

If your current exhaust system is quiet now, then after you add the dump/front pipe and high flow cat it'll be the same. The cat back controls most of the sound.

[abu]

3" turbo back would be perfect, with a high-flow 3" CAT.

If you dont like it to loud I suggest you put a resonator or a muffler in as a straight through 3" which a CAT will be fairly loud!

[TramanBaba]

and just jap does them for cheaper than those mentioned on the website. Visit their trader section on SAU for more details.