Straight Through Exhausts.

[Rusty789]

Whats the road legalness about them, and will it Fcuk my car up over time?

ive been told straight throughs do becuase they basically dont have any resistance?

[pugsport]

clapping down on it round my way at the mo (if its to loud)

it should be fine if you at lest have a back box

[Rusty789]

i wasnt going to have a back box basically i was going to get a standard back box run a straight pipe through it then weld a sheet of metal back around it so it looked standard...

[ATFoxy 106]

lol ^^^

[lukehudson]

wt a legend ol

[Dave-R]

106 "Sounds like a tractor" edition. Don't do that :D

If you want a straight through, either a) buy a centre section for a 106 that has the cat in the manifold or b) spend some money and buy a 4-2-1, de-cat and cat back centre section (making sure that flange will marry up to your backbox).

[ATFoxy 106]

btw, straight through exhaust will loose your power as an engine needs some resistance to create back pressure. so instead of messing get a propper exhaust system

[liaminllan]

the correct amount of back pressure will create a better ammount of power lower rev range but can restrict at higher revs

[Kam Racing]

btw, straight through exhaust will loose your power as an engine needs some resistance to create back pressure. so instead of messing get a propper exhaust system

not quite correct. The exhaust is most efficient if it stops just after the secondaries connect. ie at the end of the manifold.
Anything bolted on after that is solely to keep noise levels down.

The more restrictive systems keep the exhaust gas pulses closer together that improves torque. The straight through systems are more efficient and boost power at the expense of noise and low down torque

[sambo]

i put a full stainless exhaust with a decat and backbox and i tell you what it did make it quicker and killed a bit of a flat spot i had going lol :D defo worth paying out thou for a good one. i want to change the back box on mine its a twin exit dont really like um to common lol want one of them pugsport ones.

[ATFoxy 106]

not quite correct. The exhaust is most efficient if it stops just after the secondaries connect. ie at the end of the manifold.
Anything bolted on after that is solely to keep noise levels down.

The more restrictive systems keep the exhaust gas pulses closer together that improves torque. The straight through systems are more efficient and boost power at the expense of noise and low down torque

im not so shure bowt that kam. not doubting u bu when i tested my car with just the mani on after starting the engine it had no power at all