Exhaust Choices. Straight Pipes Or Cannons? Or Neither?

[684NGR33]

Hey guys,

New to the forum and new to the skyline world. I bought a 33 two weeks ago. It has a full 3" exhaust with cat and hotdog muffler and originally had a cannon. I got a hold of a set of 3" stainless straight pipes and put them on mainly because i dont like the look of cannons but since have noticed a power loss top end. It just feels a lot slower, even changed the way it hits limiter.

So I'll probably put the cannon back on to gain the top end performance back, but I don't really want to. Is there anything else I can run thats not a cannon or straight pipes and will do what I want?

Thanks in advance.

[Ben C34]

Welcome.

The power didn't change

That's all in your head.

[GTSBoy]

I assume by "straight pipe" that you mean you replaced the rear muffler with a section with no muffler. Or possibly that you replaced the whole lot including the hotdog, meaning that you have nothing but pipe behind your cat. If either of those cases are true, then I would expect;

• It's horribly loud,
• It probably sounds like arse raping a donkey,
• It shouldn't do ANYTHING to make your car make less power.

So either it just feels slow because it sounds so bad, or just possibly, and I mean JUST, it has increased air flow through the engine sufficiently that the shitful R33 ECU has decided to put you into R&R territory and is calling a halt to the fun. In which case, it's not about the exhaust, it's about management.

[Ben C34]

I assume by 'do what you want' you want a hectic loud exhaust. In which case straight pipes or a cannon fill that criteria.

[Blackkers]

Did boost change when you changed the exhaust?

[Trex]

No pipes ftw.

[wolverine]

• It probably sounds like arse raping a donkey,

^^^^^^^^^^^This man knows all about this

[684NGR33]

Its just twin stainless pipes from the diff back, the hot dog is before the diff. It sounds good up until 4000rpm then has horrible stainless Eco. And was thinking it'd be the pipes cause who ever made them was pretty dodgie, like where the Y pipe is they've slipped 3" pipe over it and left the end of the Y pipe that should have been trimmed flush on the inside of the 3" pipe there, if you know what I mean, so could be hitting that and restricting it or f**king up flow?

[Dobz]

As stated previously, any power difference is usually placebo effect. Tuck a quality 3" muffler up in the standard cavity and put a dump pipe on it. Having idiotic cannons hanging down on stupid angles is a good way to get a cops attention.

[breaker1845]

One suggestion, focus on keeping it legal or stealth as possible unless you want to get pulled over or defected regularly. Something custom is usually a lot better and works out well depending on the purpose of the car.

[mattie4270]

Listen to the guys above,all they have said is correct

[niZmO_Man]

If you're going to make your car illegal, don't do a half arsed job.

Hole in passenger floor + curved pipe from dump to inside cabin via previously mentioned hole.

[684NGR33]

Only if you're kind enough to come for a drive with me? You can even call shotgun?