Hilux V6 Decatted

[Kykdaar]

Decided to do the decat thing.

My reasons included the age of the bakkie (2005) - I was worried about the state of the cat's - and the fact that opening up the exhaust a little should make the bakkie breathe a bit better, hopefully adding a bit of power. Any consumption gains would be a bonus, but that was not the main motivating factor.

So Saturday morning early I was off to Supaquick in Menlyn Pretoria and after a quick discussion with PG the bakkie was on the ramp and Jacob had the cutting torch ready.

The brief was to cut off the two rear cats and replace them with straight pipes, remove the material in the two front cats (but leave the cannisters intact), add two mini-cats to keep the ECU happy (although probably not needed for a 2005 model) and to re-do the bend of the exhaust around the transfer case to increase ground clearance. The rear section of the exhaust, including the rear muffler, was left untouched.

I thought that I would take a few pictures and share it with those contemplating something similiar.

The process took 2 hours exactly and cost R2250.00 all-in.

I am very satisfied with the quality of the work done by Supaquick and the service rendered by PG and can recommend them to anyone.

So what is the effect?

Probably difficult to quantify precisely as each bakkie will be different (e.g. mine is chipped and has a lot of heavy hardware bolted to it), but here is my impressions -

- the condition of the cat material was still good so any concerns with it having become clogged over time / distance (151 000km) was unfounded. It was also still secure in it's housings and not loose.
- the bakkie has a slight increase in exhaust tone and the "rawness' thereof, but nothing to write home about.
- it feels as if the engine does breathe and rev more easily.
- there is a noticable increase in power accross the rev range but nothing earth-shattering.
- I have not yet compared fuel consumption, which is only something i do on long trips, so that will come later.

Additional benefits, I believe, is a cooler exhaust. I still remember vividly the picture of the burnt-out Vigo that got stuck on a dune in Namibia and I have heard that cats raise the exhaust temperature significantly.

[Kykdaar]

Some more

[Thabogrobler]

Ek het ook so 2 weke gelede 'n Isuzu s'n daar laat uithaal.

MAAR gesien hoe maklik dit is! Ek sal verseker nie weer iemand betaal om dit te doen nie!

[Kykdaar]

Ek het ook so 2 weke gelede 'n Isuzu s'n daar laat uithaal.

MAAR gesien hoe maklik dit is! Ek sal verseker nie weer iemand betaal om dit te doen nie!

Die cat materiaal is maklik om uit te stamp ja, maar ek het nie die toerusting of die vermoe om n nuwe stuk pyp te buig en om ander stukke in te las en te weld nie. As geen fabrikasie nodig is nie en die nodige boute maklik uitgehaal kan word kan n mens dit seker self doen.

[JamesC]

Ouch! Supaquick in Potch charges R250 (excluding mini cats)

[Kykdaar]

Ouch! Supaquick in Potch charges R250 (excluding mini cats)

The Mini- cats is the expensive bit, not the actual fabrication.

[Thabogrobler]

Myne R420.

Die verskil tussen stad en dorp...

[carlo4e]

Probleme met die engine liggie wat aankom en bly brand na die voorste catts uit is?
Ek het my agterste catts ook laat uithaal en die lastige draai om die transver case laat verander (R 350.00 in Groblersdal). Het egter die voorste catts gelos omdat ek gehoor het van probleme met die liggie wat aan bly.
As die liggie nie pla nie laat ek dit die naweek doen!

[Huismoeles]

Op die ouer model's het jy nie die problem met die liggie nie
My tuna 08 se voorste en agterste cats uit sonder mini cat en geen probleem
Watse jaar mod is jou bakkie

[Sebata]

mine has a snorkel on & gives out totally different sound

[Obelix and Dogmatix]

Het einige iemand al gekyk wat se verskil dit op brandstof verbruik maak?

[carlo4e]

Hallo Dirk, my bakkie is 'n 2006 model. Een van my maats het 'n SRT Jeep wat se catts verwyder is deur Rob Green. Selfs Rob het gesukkel om die SRT se liggie af te kry. Jou antwoord help baie om my te oortuig om dit te gaan doen.


Quintin, welkom in die brandstof krisis! lol

[Huismoeles]

Geen verskil in brandstof by my nie.
Sy response is beter

En natuurlik daai mooi klank

[Obelix and Dogmatix]

Hallo Dirk, my bakkie is 'n 2006 model. Een van my maats het 'n SRT Jeep wat se catts verwyder is deur Rob Green. Selfs Rob het gesukkel om die SRT se liggie af te kry. Jou antwoord help baie om my te oortuig om dit te gaan doen.


Quintin, welkom in die brandstof krisis! lol

As 'n pel van woor ons die forum gejoin het SPEL MY NAAM REG

[carlo4e]

I cleaned out the front cats this afternoon. DIY job between 3 and 5 o'clock. Sounds different but I'll get used to it. Can't wait to get it on the open road...


Pick shows some of the internals. Wear the PPE and don't get it on your skin, this stuff itches like hell!!

[justaguy]

mine is an 07 v6 hilux had front cats smashed out and rear cats replaced with mini box`s , sensors were left in place and my engine light is now on........ anyone know how to solve this problem ?

I have heard of mini cats that screw in , anyone know who in cpt sells them ?

[Mr_B]

Hi David,

I'd speak to Rodney at Powerflow Bellville. He decatted my bakkie about 5 years ago. I've never had a issue with the engine light coming on.

B