exhaust bore???

[bengtt5]

im torn between two systems
both ktec stealths
either the mild steel 2.25" system or
the stainless 2.5" system
question is
apart from stainless lasting longer what difference is there between them , doe the extra 0.25" make a difference

 

[IceBerg182]

2.5=more power
2.25=less power (on a 182 anyway, not sure about 172)

 

[Brett]

I'd avoid the ktec stealth tbh. As an ex-owner I'd say it was a poor system, wish I'd of reasearched better.

The standard system is 2.25", I've noticed no difference when changing to 2.5" systems on either of my 1*2's except noise.

 

[Dan519]

I have the 2.25 mild steel stealth on mine. It's no restriction at over 210bhp, and that's with a cat

 

[Jay Payne]

2.25 on the race car 215bhp

 

[bengtt5]

Cheers

 

[Cup_Phil]

Yep - people who say 2.5" for more power really are just listening to bad advice

2.25" on my ITB'd cup with sports cat - no restriction at all

 

[dmallett]

I would try avoid the mild steel system, in under 20k mine cracked twice.

 

[Dan519]

Yep - people who say 2.5" for more power really are just listening to bad advice

2.25" on my ITB'd cup with sports cat - no restriction at all

I would probably say 2.5 for a balls to the wall build

 

[Dan519]

I would try avoid the mild steel system, in under 20k mine cracked twice.

Grounding out will do that to anything though, Mild steel is actually less crack prone than stainless

 

[dmallett]

True, but the back box coming clean off on the bend isnt due to grounding out!

 

[Cup_Phil]

I would probably say 2.5 for a balls to the wall build

Yeah if it's a turbo/charger I'd go 2.5" - but you max out injectors before 2.25 becomes a restriction lol

 

[IceBerg182]

I have the 2.25 mild steel stealth on mine. It's no restriction at over 210bhp, and that's with a cat

2.25 on the race car 215bhp

I'd avoid the ktec stealth tbh. As an ex-owner I'd say it was a poor system, wish I'd of reasearched better.

The standard system is 2.25", I've noticed no difference when changing to 2.5" systems on either of my 1*2's except noise.

Yep - people who say 2.5" for more power really are just listening to bad advice

2.25" on my ITB'd cup with sports cat - no restriction at all

"I stand corrected", said the kid in the orthopedic shoes.

 

[bengtt5]

So it's really just which one takes my fancy
shiny or not shiny

 

[Dan519]

So it's really just which one takes my fancy
shiny or not shiny

yeah, and noisy or not noisy.

You're in Bournemouth, why not call K-tec and ask if you can see/hear one on a car. I'm sure they have various systems on a number of their own (employees) vehicles. I know Bex had the recessed on her ph1, Not sure what Anthony has on his.

 

[bengtt5]

Can't be a much louder than my standard system as I've got no baffles in the back box as we cut them out cause they broke up inside also one of my centre boxes is removed as well