Any thoughts on these? What are the main differences on the brands for the same type of product.

Stainless Steel Exhaust Test Pipe Infiniti G37 08 09 10 3.7L 6 Cylinder | eBay

 

all the same...... it will work as just another branded test pipes....... the nuts&bolts are p.o.s. though

 

Actually your 100% wrong. Test pipes you want QUALITY pipes because if fitment is off at all, your pipes won't seal properly.

My best advice is to STAY OFF of ebay. DO NOT cheap out when it comes to your exhaust and engine components for your car, or you'll only regret it and end up spending more money in the long run~

 

You are very wrong at so many levels. They really are not nearly the same! There is a reason why we pay the premium for high end stuff. The extensive R&D, better craftmanship/welds, superior material, and the customer support behind them will make it worthwhile to pay the extra $$ to support the reputable manufacturers such as BERK, Motordyne, etc. If your ebay part craps out on you or even worse cause a damage to your vehicle, then wtf do you do then? Do you think these vendors in China/Taiwan will give a shlt? I think not.

You spent a pretty penny for your ride. Treat it accordingly and don't cheap out on parts!

Just my .02

 

lol beat me to it!

 

I guess, I bought the ebay test pipes.. And used them for a day.. Fitment was about right.. Quality wise was good enough. The fitment was 100% good, well I guess I'm just those lucky people who got the good one.

 

Same day as I got my TP's on.. Got poped by a cop.. Removed them and sold them.

 

Cheap parts will usually sound cheap too. There is a lot of R&D required in producing a quality exhaust part. You would be surprised when you see how much little variance can make such a drastic difference in sound and fitment.

I guess you can slap on some ebay parts if you can't afford the good ones. IMO when you do that, you are putting your car and yourself at risk because more often than not, you will run into fitment and other quality issues. If I were you, I'd save up and do it right the first time around.

 

No worse buying this than buying replica wheels, bumpers, exhaust. As long as fitment is right you should get $100 worth out of them...

Test pipes are cheap anyway. Nothing but straight piping.

 

I half agree, but only possible damage is rust on the test pipes in my opinion... Put them up against any non-resonated test pipe and they will be almost identical.

 

How about CEL or other quality issues as weldings cracking, etc which can lead to other issues? IMO this is much worse than buying replica bumper.

 

At least with test pipes they are not a blatant attempt to copy/steal someone else's design.

All test pipes run the same risk you are talking about... Most reputable branded test pipes have the same length bungs as these. Steel wool in them help out with a CEL which would involve the O2 sensors reading out of range readings.
Cracking in the welds or piping? Maybe, but unlikely. Like I said test pipes are just piping and fitment. Quality of material, welds, and fitment are the only things that can be off.

Test pipes are not street legal either way... Sorry to play devil's advocate as I am a fan of quality lol. For an extra $75 you can buy a well known branded set.

 

Bought these TP from Shy and are still holding up fine. No leaks and sounds like any other test pipe set up to me.

 

Nice. It's been about 7 months on your car too right?

 

other then car parts.....I love ebay