scoobiesteve103

i need some advice on my exhust for my classic plz. i have a open mouth 3" downpipe going to a 2 and half inch flange i also have a blitz nur spec r backbox thats also a 2 and half ince flange but 3" pipe. heres my question. would i lose out if i use a 2 and a half inch center pipe or would it be better to get a 3" and sort the flanges to 3"? ive looked all over the net but cant find a 3" center pipe anyplace pls help!!!!

joz8968

iTrader: (13)

True 3" straight through centre:-

Haywood & Scott Subaru Classic 3" Straight through Centre Pipe

Stevo-C

Hi mate.

I had the same thought recently when buying an exhaust for my newage. I ended up with a Miltek 2.75" system and it delivered everything I needed.

I guess it depends on how much power you're planning to end up with?

If you're aiming for up around 400bhp then go 3". If you're not, save yourself the aggro

scoobiesteve103

im only lookin for around 360-380 most as i dont wanna kill the gearbox yet lol

joz8968

iTrader: (13)

If you can be bothered to sort the flanges to proper 3", then I'd do that, and get the 3" centre above.

That way, if - rather, WHEN! - you get project creep , you won't ever have to address the exhaust again, as it won't be a potential restriction.

scoobiesteve103

you ever thought of changing ur name to batman because that good thinking lol

joz8968

iTrader: (13)

I'm 'only' running 342/330, but got a true 3" system from the outset, for that very reason.

scoobiesteve103

nice im only at 307 at the mo

scoobiesteve103

found 1 on scoobybits. going down on sat to get it £95

joz8968

iTrader: (13)

Result! Wicked.

TonyBurns

iTrader: (3)

On a classic that will probably kill a gearbox and an engine (and the clutch and the brakes will be useless etc).

Tony