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R34 Exhaust

r34 gt25

By r34 gt25,
in Engines & Forced Induction

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GTS4WD Grand Master

GTS4WD

Posted
Posted

Are you kidding?

Its not like you even had to look too far.. there are currently 3 or 4 exhaust threads.. all 4 of them with the answer..

2.5 inch is good for responce

3 inch is good for top end

What to buy in terms of product.. anything will do - just not a generic "one items for all cars" product.

Where to get? Forums is good place for cheap brand name products.. Ebay for BRAND name items (not supershit items). Internet web sites.. but these can be grossley over priced.

Cat back wont give you too much of anything though.. just a little more poke.. not much.. and a completely different sound.

Buying second hand will always be cheaper.

Dont buy supercheap products.. it will sound like a fat man fatring in a can

And next time search..

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  • 4 weeks later...
N-DAWG Mentor

N-DAWG

Posted
Posted

I've seen this on eBay...though I haven't been able to find much on Rapid Auto Parts in a google search.

http://cgi.ebay.com.au/NISSAN-SKYLINE-R33-...1742.m153.l1262

They "appear" to be a quality built cat back, I have no idea about what the mufflers on them are like though. If anyone here has had experience with them I'd be keen to hear it.

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Jmaac Proficient

Jmaac

Posted
Posted

As above, its only really going to change the note. You need a full system to really change drivability. Remember your na relies on a certain amount of backpressure (unlike turbo), and can only flow as fast as the smallest restriction cat forward. There might be slight improvements from the scavanging effect caused by the pressure drop over the two sized pipes (cat providing the baffle/smooth transition of exhaust flow) but a full tuned system always has a much better effectiveness/efficiency at scavaging or pulling power from the motor. Save a little more and get a full system, you'll also save on labour in the long run.

Anyway you'll have to do a bit of searching to find what your looking for because the improvements are so small and hard to judge on a n/a catback system

On an N/a skyline i wouldnt go above full 2.5" and that will support all future mods albeit turbo coversion. Might find mid range drop off and top end increase without (torque move up rpm) them though. Only bother if you intend to

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dori34 Grand Master

dori34

Posted
Posted

^ yeah i was going to get 2.5" as the stock system is too quiet but i realised its a waste of $$ as im going turbo early next year so i might just stick with this for now.

2.5" wont gain much over stock...

might just put a cannon on for sme sound lol

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