What exhaust diameter???

[GreenyUK]

2.75" FTW

I was actually thinking that but thens it's bad enough saying it's only 3 inch don't want smaller..

ONLY 3"?!

Don't think I've ever heard of a lude with bigger... Even turbo'd

Oh yes or got we were talking exhausts or a minuet then.

[Merlin]

What exhaust manifold and decat do you have?

IMO with a good exhaust manifold and a 2.5" decat a 2.5" catback will be enough.

[Thebusofwoe]

I have no idea what mani i have I am pretty sure its a ebay jobby. There is no decat, its a complete pipe from manifold back, as will the new system be the same. I was talking with mick at TT and he says he could remove the collector/flexi and increase the size of it to match the exhaust He also offered to make me a complete new stainless manifold to match the engine ect, but at a price of £6-700 i think i will give that a miss for now. So i gave him a call about making it in 2.5inch. He said it would cost around 50-100 more than the quote already BUT he did say it would benefit future modifications. So atm i will be sticking with the 2.25inch, purely for cost reasons at present. Cheers chaps so far. Very interesting to read who runs what diam.

[SPYDOR]

I've been reading some of the old Engine / Gearbox threads and ran across this one which has some useful information and opinions on exhaust sizes:

http://www.ludegeneration.co.uk/honda-p ... t4040.html

It also includes a link to the PreludePower article showing the dyno results proving 3" exhaust gains over a 2.5" system, even on a relatively stock H22!?!

[106pete]

I'll be building a full 3' system for someone shortly

Mines just a 2.5' manifold to 3' after the mid silencer and it makes good power for a internally standard engine, if you want a cheap system learn to weld and get a evo 4,5,6 aftermarket exhaust. They are loud tho, but silencers are easily added as I will be sometime soon.

[SPYDOR]

A 3' exhaust!?!!!!!! so literally 1 metre in diameter!? What are you running, some kind of 100,000bhp turbine on your car!

" = inches
' = feet

[GreenyUK]

Pete why a evo 4,5,6 exhaust system? Do they fit Ludes or something?

[106pete]

Hehe I'm always doin that

The evo 4,5,6 systems are all the same and quite easy to cut and weld into the right shape. I got my hks for £60 delivered from eBay

[GreenyUK]

Ah right ok fair enough. Is it a stainless system? I only have access to a mig welder you see

[mercutio]

if its a hks I would assume so