Top Speed Headers and Exhaust

[RandallNeighbour]

I have both. No idea if there's drone from headers and stock cats and stock muffler. Muffler is gloriously loud and lovely with the top down, but the cabin drone with the top up is deafening if you hang around 2800 rpm.

Gives about 18 hp bump on a 2.5 over stock without reflashing the ECU.

No ground clearance issues, but you will have to wrap one of your AC lines and zip tie it to something to keep it from rubbing up against the headers, which are a lot larger than stock headers. O2 sensors fit fine.

Quality and fitment seem to be good.

Hope this helps!

[Jittsl]

I recently purchased (and then returned) a set of their cat bypass pipes for my 98 Boxster. I was very unimpressed with the fit and even less impressed with their reaction to my suggestion that something seemed to be wrong. When installed the pipes ended at different heights and widths and one of them touched the chassis.

Obviously I wasn't going to use them that way so I rang them to see if they had any explanation. Without much thought on their part I was told that their must be something wrong with my car and no consideration was even given to the thought that the product was at fault. Since they were bolted to the back of a set of stock headers I'm not sure what exactly they think could be wrong. Interestingly product bought from another source fitted perfectly.

To add insult to injury I was then informed that I would have to pay for the shipping in both directions and that I would be charged a 20% restocking fee. After some discussion it was agreed that they would at least look at them and they would see if anything appeared to be wrong.

They received them a week ago and they have yet to refund anything. They sell cheap imported Chinese product and you get what you pay for. Aside from that however they don't seem to be a particularily customer focused company. I found George to be downright rude. I would not recommend them or ever use them again.

[Alfieg23]

Thank you RandallNeighbour. JDanger, I have a 2000 Base 2.7 Boxster.

[Alfieg23]

Thanks Jittsl.

[Johnny Danger]

Originally Posted by Alfieg23

Thank you RandallNeighbour. JDanger, I have a 2000 Base 2.7 Boxster.

Sorry, but without getting into too much detail, changing the headers and pre-cats on a 2.7 boxster isn't worth the time or effort spent messing around with a cheap set of headers . With all due respect to Randall, if he's getting 18 hp from a set of Top Speed headers, along with their cat back exhaust, that's nothing short of miraculous . After nigh on to 10k of custom exhaust mods, to included an ECU re-map, I barely achieved that figure on my vehicle .