G’day fellas, thought I’d throw my two cents in as well. I have a Walkinshaw Power pack with 2.5 exhaust fitted to my SSV that was done back in 2009. I don’t have the OTR but the growler intake and am more than happy with the results.
I have thought of going down the OTR route but my local mechanic told me not to bother as the difference would not be that noticeable. I believe him as he has tuned cars before, but, the look of an OTR does make your engine look more aggressive, and let’s face it when you lift the bonnet you want to be impressed. If I decide to go that way, I’ll probably go with Walky.
Cleaning the filter is not a big issue for me as it’s not something I’m going to be doing every second Saturday. Ideally I’d love the beast Supercharged, but I have the travel bug now and would rather spend 13k on an overseas trip than a supercharger.
Anyway , good luck Redline, I hpoe you'll be happy.
Oh, and the reason I went with Walky...I love their exhaust tips and I'm a HRT man.