July 4, 2022

The traditional Subaru Impreza has typically been heralded as one of the best of all Imprezas and naturally has an enormous aftermarket following. Right here’s our quick-fire Subaru Impreza GC8 tuning information. 


We don’t should inform you that the 2-litre Boxer unit discovered within the Subaru Impreza GC8 is just a little on the legendary facet for tuning, a lot in order that there can’t be many normal ones left by now! It’s largely as a result of these engines reply so nicely to bolt-on tuning mods like exhausts, induction kits and entrance mount intercoolers, though it’s value allowing for that they should be suitably mapped to benefit from any additions. Fairly often you’ll be able to really lose energy till you get all the things dialled-in properly, so it’s all the time value investing in a great ECU like a Hyperlink G4+ and having it tweaked to perfection by a correct Subaru specialist. These 4 mods alone can see round 320bhp on an STI, and round 300 on a WRX.

The ‘additional’ tuning world is your oyster too, there’s all the things from turbo upgrades and larger injectors, to all of the elements you’ll be able to ever want for a full-on construct – prime gear like cast internals, stroker kits and closed-deck blocks. That stated, we’d all the time begin with primary stuff like ensuring you take care of it correctly. Pay specific consideration to your oil, commonest engine failures are attributable to hunger, so don’t simply ensure that it’s the great things you’re placing in (the excessive efficiency vary from Royal Purple comes extremely really helpful for the Traditional Scoob), however take into consideration becoming a high-flow oil pump too.



The usual gearbox on all of the traditional Subarus, together with the STi fashions, are all the time trigger for debate. Some say they’re glorious and stable sufficient for loads of upgrades, others say they’re absolute rubbish and liable to interrupt at any given second – we expect “comprised of 3-day-old cheese and pickle sandwiches” was our favorite quote from a widely known Subaru discussion board. Nonetheless, what we do know is that they’re a bugger to interchange, not getting maintain of 1 (Quaife can do a you a complete load of uprated package and there’s a few billion second-hand ‘containers on the market), we’re speaking about really doing the job… it’s definitely not like whipping out a clutch on a Civic.

Talking of clutches too, it’s lifeless straightforward to eat yours if you happen to’re working much more than inventory energy and have a weak point for mashing the throttle. It’s little surprise that an uprated clutch is among the hottest upgrades on all Subaru Imprezas, not to mention the older ones.


It’s referred to as a ‘Traditional’ for a purpose and the times of mentalist fibreglass physique kits and lurid graphics are all however gone. These days most Traditional homeowners are motoring connoisseurs quite than out-and-out turbo nutters don’tcha know? Particularly those fortunately sufficient to personal a 2-door!

Nonetheless, except you’re going for a hardcore motorsport-style, which is a really cool and a vastly totally different factor to any form of daily-driver, most individuals choose so as to add a number of carbon fibre particulars and probably comply with the OEM+ route of upgrading earlier vehicles with the crystal headlights and grilles from a post-facelift mannequin. That stated, there’s nonetheless heaps on the market for all these vehicles, however for as soon as although, we’d say preserve it refined with a number of easy tweaks like a entrance lip, a spoiler-swap and some selection trinkets.

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subaru impreza gc8 tuning guide

Wheels & Brakes

17 or, at a push, 18-inch wheels are typically accepted to be one of the best on the Subaru Impreza GC8, we wouldn’t go any greater than that. Don’t overlook too that the AWD system likes to maintain the identical rolling radius on every axle, so working staggered widths is a straightforward method of messing up your underpinnings. The excellent news is that there’s not many wheels that don’t go well with the Classics, particularly these firmly within the motorsport-style camp. So that you received’t have hassle discovering the precise set.

For probably the most half the inventory brakes are respectable, if just a little underwhelming. On the very least we’d go for some upgraded discs and pads from EBC. However, if you happen to’re searching for the last word in stopping energy, there’s loads of BBKs on the market that may match underneath a set of broad 17s. Once more, there’s in all probability too many on the market to depend.


All the same old Subaru Impreza guidelines apply right here. Earlier than you do something test there’s no knocking from the entrance finish, ARB bushes are significantly vulnerable to degrading and the opposite bushes could possibly be hard-used and want changing by now. Clearly polyurethane objects are the best way to go if you happen to’re attempting to tighten up the dealing with, we’d communicate to SuperPro about their vary.

As for suspension, there’s masses on the market for each utility. Ask your self what you need out of your Impreza GC8. Will it’s happening monitor or do you want a snug every day driver? Pedders Suspension make a complete vary, from uprated shock and spring kits to full-on ‘XA’ coilovers. These guys come extremely really helpful from these within the know.



There’s two foremost inside mods which have stood the check of time right here – respectable seats and much and many engine gauges. To be honest there’s not rather more you want. STI seats are all the time standard in fact, and the blokes at Jap Efficiency Elements ought to be capable to kind you out a second-hand set. There’s additionally no scarcity of aftermarket perches to select from, all the things from motorsport buckets to uber-luxury recliners.

Automobiles constructed earlier than 1997 have a unique sprint, so some prefer to improve theirs to at least one from a later mannequin and, if you happen to received’t be utilizing the rear seats (or doorways) anyway, a task cage is an effective method of getting the last word in chassis stiffness, to not point out some quite racy seems.