Discussion Forum - Caravan World

In the September edition of Caravan World with Motorhome World magazine, issue #469, towing expert Philip Lord notes that exhaust modifications can be very good or very bad for towing vehicles.

What have you found? What has or hasn’t worked for you?

"Engine management computers, aka engine control units (ECUs), are a rich area for engine improvements. Don't buy one on eBay, though: go through a reputable company, preferably one that specialises in the modification and has dyno charts to show you the actual gains in power and torque for your vehicle before and after," writes Philip.

Full report in the September edition of Caravan World with Motorhome World magazine, on sale August 4.

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COMMENTS (7)

Comment by Unknown

posted 4 months ago

i put a 2.5inch exhaust with a truck muffler on my 1997 mazda bravo diesel and have found that the after market safari turbo now has almost instant response to the throttle where as before the turbo was very slow to respond to throttle movement i also extended length of the sides and top on the turbo snorkel scoop as well this is helping to force a lot more air into the intake at lower road speeds also giving the engine better power as well

Comment by Unknown

posted 5 months ago

I put a straight through muffler on it freed the motor up and gave more m.p.g

Comment by Unknown

posted 11 months ago

Diesels respond better to exhaust improvements very well. Any flow increase will deliver benefits due to less resistance on the exhaust stroke of each cylinder yet not affect fueling as fuel is added at combustion.
Diesel is the most efficient way to go.

Comment by Unknown

posted 11 months ago

I have had fitted a two and a half inch s/steel exhaust on my 2.8 litre turbo intercooled and aftercooled Nissan Patrol and have had a 25% increase in torque. I am now looking at putting Diesel/LPG unit on
Lez Mount Barker S.A

Comment by Unknown

posted 11 months ago

I also have fitted a 3 inch Mandrel exhaust to our 4.2 turbo Patrol and teamed with 2 Hiclones gives the performance of a petrol motor with the economy of diesel.LUV IT
mando

Comment by Unknown

posted 11 months ago

I have recently put a three inch system on my 4.2 turbo Nissan Patrol the differance was unbeiliveble more power quicker much free when you take of best think i hve ever done

Comment by Unknown

posted 11 months ago

I have had a 3 inch exhaust fitted to my 4 year old 4.2 nissan patrol and what an improvement that has been

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