HVE 4-1 question

[croat]

One the HVE 4-1 header (ceramic coated, 2.0 manual Tib only) what is the output diameter where the header meets the cat?

Metric or american sizes are fine.
I just wanna know what size cat-back, and free flow cat would pair up the best.

[hyperhyundai]

I think it is 2.5

[croat]

Originally posted by hyperhyundai
[body]
I think it is 2.5
[/body]

Positive?

[alz99]

i'll check tonight but i know it fitted my standard system (with welding though...)

Unless Bretton answers first:smoking:

[bretton]

The HVE 4-1 extractors come with an collector diameter of 2.25". The good thing is that being a cone shape, if you are fitting a larger than 2.25" exhaust, you simply cut back this collector a few mm to make the outlet larger. Just be careful that you do not cut off too much, as the collector will need to butt up neatly to the pipe it is welded onto to give a smooth flow of the exhaust gas.

For the 1.8 litre motors, HVE has alway fitted a 2.25" cat back system, where for a 2.0 litre motor, a 2.5" system is fitted.

Hope this helps.

Cheers

Bretton
www.PerformanceStylingCentre.com.au

[croat]

Hmmmmm......

Well B, what do you think a N/A Tib should run (under 200 hp, and no pans on exceeding that).
2.5" cat back, or 2.25" cat back (including the free flow cat)?

[bretton]

Hi Croat,

Well, if yout Tib is a 1.8, go for a 2.25" system, and if it is a 2.0 litre, go for a 2.5" system.

Cheers

Bretton
www.PerformanceStylingCentre.com.au

[croat]

Originally posted by bretton
[body]
Hi Croat,

Well, if yout Tib is a 1.8, go for a 2.25" system, and if it is a 2.0 litre, go for a 2.5" system.

Cheers

Bretton
www.PerformanceStylingCentre.com.au
[/body]

Are you sure that the 2.5" on a 2.0 Beta will produce better gains than the 2.25"?
The max of mods would be header, free flow cat, cat back, intake manfold, BBTB, and a CAI.

[1stgentibs]

also use a flex pipe from the header, as it will help save you money from replacing broken pipes!