Pete 352 212 2852

Pls call me Pete 04 xjr exhaust tune rear questions it seems everyone seems to be not very bright when it comes to unleashing potential of these cars. Please call 352 212 2851

Hi,

The orginal Jaguar V8 valve springs are quite soft and bind height do not allow very much higher cam lifts. There are basically no aftermarket springs available, so one of the forum member followed by me are getting custom made, very high quality and stiffer valve springs. The manufacturer is well known valve spring company and limited batch is ready next week. They made a few extra sets if someone needs since there is no reason to make just one set because of high costs. The price is just under USD500 for 32pcs. If you need such a good improvment now or near future just let me know and I give direct contact details of the manufacturer/seller. I am not any kind of "middleman" in this case and do not get any income if sets are sold or not. I have sent this same message to forum members I know to have some serious Jag power or at least future plans. Springs fit 4.0 and 4.2 V8 heads 3-4 sets were available today morning.

Regards,

Sami

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Thanks for responding on the muffler delete post. A few questions.


Did you remove the two small mufflers as well? In other words, do you have any resonators with your install? With what did you replace your center resonator? Finally, some have said there is a "droan" in the cockpit at highway speeds. Did you encounter such a noise?


Thanks!