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I would go with Jem

Unless you get your whole build done at Powertune they won't look after you customer service is shit tune shit never again my brother got his car tuned there

First tune chea didn't even tune it someone else name Lui did

worse was on the print out it said s15 when it was a s13

said it made 240 odd kw

Ran very rich blew smoke laggy and couldn't even run a 12s at wsid 110mph power wasn't right old setup tuned by toshi 210rwkw ran that.

Smaller turbo std cams

Went for a retune but specifically asked Chea to tune it made only 220rwkw something this time round but drove better no smoke but low power

When I picked it up kenji said it made good power when it made less than before and for the mods it was very low and didnt even say or help guide me into what was wrong

My other brothers car tuned by Unigroup same setup bar cams made 250rwkw

This s13 tuned by Powertune made 220odd rwkw

Both had sr20det,bc cams springs,gt3071r,740cc injectors and z32afm

Usually at wsid 1/4 mile trap speeds

210rwkw - 110mph

230rwlw - 117mph

250rwkw - 121mph I've personally tested this

Yet the first tune at Powertune was only running 13.0 at 110mph and they said it made 240rwkw don't even think they tune it the first time

Spent almost $1000 got no where

Nope j.e.m only going to ring around Monday morning

Not that I am local, but I have been around here for a while and have seen only evidence of good work and equally important great attitude to customers from JEM and would be going to them if I were in that area.

And because 34GeeTeeTee haha

i use powertune.

first tune was excellent.

started and idled great.

ran very smoothly.

now a completely different set up.

have done run in tune.

a few issues arose, but were sorted.

going back for power tune when I have the cash.

ive had nothing but excellent customer service, and only good things to say.

I also built the car myself, so they havnt touched the mechanical.

also done the first mods myself.

talk to both.

both have a good overall reputation.

pm a couple of people on here with cars of similar setups, and ask where theirs were done.

get a feel for both.

also, in saying I use powertune, jem would be a close second for me.

either way good luck.

Its the same distance towing than driving :P. Im not far from you Luke and I take it to Jez.

It's all personal preference. Where you feel comfortable leaving your car, go with it. If they bugger up, don't go back. If they are good, you found your shop. Talk to as many shops as you can.

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