Thread: 156 GTA Tuning
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Old 03-02-2007   #35 (Post Link)
ukoldschool
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147 GTA

Re: 156 GTA Tuning

Originally Posted by jack75
I'm quite surprised by the 300BHP only with an induction kit, remap et complete exhaust !! It makes 50BHP with few mods....

I was thinking remap & induction kit would give around 15-20HP, no more and an additionnal 30 just for the exhaust (manifold/cat/backbox) is a lot !

no ?
Well yes, it seems pretty good at first look, but then consider this:
Supersprint manifolds £1295
Supersrint sports cat £680
Supersprint centre silencer £225
Supersprint rear silencer £425
+ 6 hours labour to fit the system minimum at say £50 = £300
exhaust total £2565

Induction kit £360

Remap on the rolling road est £500

total for approx 50bhp increase= about £3500

Add C&b cams to the above to increase power by another 20 hp
£1500 for the cams, £500 approx to fit (cam belt change)

So roughly £5500 for a NA 3.2 with around 320bhp....

Or of course you could have a supercharger kit fully installed for around £4000 (either novitec or AD) to give you 320 ponies

Dont forget the AD 3.7 conversion of which stage 1 (314bhp) costs £5500 and stage 2 with the bigger throtle body (328bhp) is about another £500 on top.

Regardless of whether you want NA or forced induction youll need a new clutch, bigger brakes, an LSD and coilovers to make it drivable............
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