vr sports exhaust system kw?

[speed__demond]

ive already got a cat back 2 1/2" sports exhaust fitted not long ago.
my car is a vr series II v6

me my brother and my dad were talking about it today and wondering..


how much extra power does it actually give me??

 

[woteva]

how much extra power does it actually give me??

Not much, be lucky if you got 1 or 2 kW increase

 

[ephect]

cat back isnt a huge amount by itself, same as headers by themselves, but put em together and u can gain anywhere from 5-20kw

 

[pillzor]

i noticed a difference with CAI and 2 and a half catback.

 

[padrickz88]

it makes a noticeable difference, you feel it mainly in your mid range (well i did)

i dont know if it gained more power there or if it just moved the power higher in the rev range but meh

 

[speed__demond]

well im pretty sure it felt a bit more power when i got it done
if it was 1-2 kw it wouldent hav made a difference to the feel
its taking a couple stock **** mufflers away and putting one smaller sports one there. that with the larger pipe would give it a fair bit better flow.

full system with extractors is what i wanted but it cost to much

 

[woteva]

cat back isnt a huge amount by itself, same as headers by themselves, but put em together and u can gain anywhere from 5-20kw

Since when ??:rofl:

Have worked in car workshop a few years ago, and the best increase we saw on a VN-VR V6 with headers + 2 1/2" system was 4kW increase measured on our Dyno. Most VN-VR V6 were around 3kW increase when adding headers + 2 1/2" exhaust.

 

[ephect]

it all depends on engine condition, kms, type of headers. yes by now most vr's are kicking well over 200,000kms but there are some freak engines out there

 

[speed__demond]

by now most vr's are kicking well over 200,000kms but there are some freak engines out there

yeah tru, i was at the mechanic today and he was saying they've had vr's come in with 400,000 - 500,000km on the original engine and running fine.

 

[greenfoam]

Since when ??:rofl:

Have worked in car workshop a few years ago, and the best increase we saw on a VN-VR V6 with headers + 2 1/2" system was 4kW increase measured on our Dyno. Most VN-VR V6 were around 3kW increase when adding headers + 2 1/2" exhaust.

Sounds about right to me, I've seen a few that made 105 rwkw stock and just a litttle over 115 (about 118 MAX) is the most they will make with tune/exhaust/headers so there's not alot to gain from each one is there. Most of them will max out at under 115 rwkw. I still have the opinion it's not worth doing more than a second hand 2.5inch and the cheapest tune you can get on a V6 because 10 rwkw isn't worth much money, you can gain almost that with a really good CAI (wont show on a dyno). Alot of people swear these things pick up massive power with simple mods but mostly it's all in the mind, they just aren't that kind of motor